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How to Relivery a Slot car.

41K views 57 replies 32 participants last post by  Wraith  
#1 · (Edited by Moderator)
Stage 1. Dis-assemble car

You will need :
Craft Knife
Small flat head & Phillips screw driver.
The car is taken apart. The body work and chassis are cleaned. All parts are inspected. If found to be faulty they are replaced.
Tyres & bulbs checked and replaced.
Motor checked and electrics.
Any parts that are obviously not meant to be on the car EG F1 wheels on a GT car are removed and replaced with the appropriate part.
Any parts that are missing EG Mirrors are taken from stock and put with the car. Most replacement parts are new, some reconditioned and just a few taken from other cars, depending on availability.

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Take the car apart and put everything safe in a bag and seal it up. Some parts can be ultra small and if you lose anything the spares can be a nightmare to source.
Some cars are easy to take apart, they almost fall apart in your hand like the Scalextric Jaguar XJ220 or Scalextric Ferrari F40.

However, the more modern cars have plastic parts welded to each other or glued. If this is the case then I use a craft knife and scrape away the welded plastic until it starts to free up the joint and then ease the parts open with a small screw driver or the blade of the knife.
Similarly if the parts are glued I scrape the glue away or cut it away with a craft knife until the part works itself free.

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Some modern cars have wire grilles and rubber ariels. Work on the inside of the shell gently scraping away the glue and or melted plastic until the part almost falls free.
On a modern car disassembly can take 45 minutes. The parts are then put away unless they are required for painting.

Stage 2. Stripping & Priming

You will need:
Clean cloth
Plastic Primer
Mask
Scourer pad or fine wire wool.
Tooth brush
Acetone Free Nail Polish remover OR T-Cut OR Graffiti Remover.
Before you start masking and painting, have a clear idea in your head of what the car is going to look like. If you do not have an idea in your head the car will end up neither one thing nor another. Your uncertainty will come out in the car. So decide on a scheme and stick to it.
Most cars will need the paint stripping off first. Even the cars that are just plain white - if you want to repaint it you will still have to strip the paint and prime the body. The way I strip the paint is to use one or more of these methods;

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a. Put the whole body in ACETONE FREE Nail polish remover. Leave it for 10 minutes and then take it out and wipe off the paint with a cloth. Put it back in the nail polish remover for another 10 minutes. Then take it out and scrub it with a tooth brush to get the paint out from all the cut lines and crevices. This may take quite a bit of elbow grease and you may need the help of a kitchen scourer pad.

b. Dip a cloth in ACETONE FREE Nail polish remover and rub the paint off section by section. This is probably safer than the first option and uses less Nail polish remover.

c. Put the car in a plastic tub. Spray the car with Graffiti remover. Wipe over with a cloth. Then spray again almost immediately. Then leave to 'cook' with the car covered as this again creates quite a lot of fumes. Or do it outside but not in direct sunlight. Wipe clean again. You may have to repeat the process again but using a tooth brush to get in all the crevices.

Note that the Nail polish remover will dry your hands and give off fumes like you would not believe. So do it either outside or by an open window with gloves on.

Other people use Graffiti remover, T-Cut & TurtleWax. Just try to get as much paint off as you can. You may need a tooth brush or a craft knife to get the paint out of the cut lines in the body.
Once you are happy with the paint removal wash the car in warm soapy water, dab dry with a towel and leave to dry in the air. Two reasons for this, you want to get rid of the chemicals & you want to get rid of grease marks from your fingers. Now try to handle the car as little as is humanly possible.
You are now ready to prime the car. I use Halfords Plastic Primer. It is ÂŁ5 for a can. It comes in white, grey and red. Use the closest matching primer to the colour you are using. If you use a white primer with red paint it will lighten the red from what you were expecting. So it can be usefull sometimes - experiment and see what happens.

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You will need to mount the car body and bits on a stand of some sort. I use several small water bottles, filled with water with the tops on. I put some blue tak on the top of the bottle and mount the car on that so the blue tak sticks to the inside of the roof or bonnet. So now I can hold the bottle and rotate the car in my fingers. I also use more bottles to stick wing mirrors and spoilers to.
I then go to the garage, I cover my arm with an old t-shirt, with the garage door open I spray the car while rotating it in my hand. I also wear a painters mask. An alternative method could be to get a large cardboard box and suspend the car inside it with a coat hanger and rotate the coat hanger from outside the box. This is far less messy but not so easy to control.
The car will need 2 coats of Primer. Rub down the primer after both coats. I use a fine nail file. The primer will need 30 minutes to dry between coats and you will need to leave the car atleast 24 hours before you go to paint the car.

I use a low bake oven to dry my cars. It sounds flash but isn't. It is a metal cabinet with a lamp in it. The lamp warms the cabinet and it keeps the dust off the car as it dries. However this is not essential an alternative would be to cover the car with an old scalextric box lid and leave it in a warm room out of the sun.

Stripping and priming the car can take 1-2 hours (not counting drying time)

Stage 3. Masking and painting.

You will need:
Paint Mask
Tamiya Masking Tape
Craft Knife
Automotive Paint or Tamiya Paint.
Ensure you have waited at least 24 hours for the primer to dry. Also check the weather forecast. If you paint in the rain or fog or snow it can cause the paint to get an orange peel effect or a dull finish. If you get an orange peel effect you will have to rub down and start again. I spray in the garage and have experienced this even after a shower.

Both Tamiya and automotive paint go on better if they are at room temperature or just above. I usually put the can of paint upright in some hot water for a minute or two before shaking and using.
Use the same techniques for spraying the paint as you did for the primer. Make sure you spray past the car. By that I mean don't stop the spray stroke with the can pointing at the car, stop spraying once you are spraying into thin air. Yes this wastes paint BUT if you don't you will get a doppled effect where you stopped spraying.

A lot of people use air brushes. This uses a lot less paint and is much cheaper. But you do have to buy the air brush and thinners and cleaning bits. I cannot comment on how to use air brushes because I do not use them. That's a whole new subject.

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The paint I use is either Halfords Automotive Paint or Tamiya TS Paint. The Halfords paint is ÂŁ5 a can and will do 3 cars. The Tamiya is ÂŁ4 a can and will do 2 cars. Both have good finishes but the Tamiya is less toxic and I find it is easier to use.
Always paint in a well ventilated area and always use a mask.
I spray 3 coats on the cars. After the first two coats I rub the car down with a fine finishing pad. I leave each coat to dry for at least 30 minutes in my low bake oven. Try and keep dust and hairs off the car.

Obviously it is far far easier to paint a single colour than it is for multiple colours. If you are using more than 1 colour you will need to mask off areas of the car. Which colour you paint first depends on the car and your own nerve. I try and paint dark colours first. The reason for this is if you get any bleed you can touch up dark colours easier than lighter colours. Now I know there are people in this forum that do the exact opposite. I don't know their reason for it but they do. Again you have to experiment on what works best for you. Having said all that it may not be a choice of which colour you paint first. The shape of the car and where you decide to mask may determine which colour you do first. If you are masking a curve or in a crevice try to work out if there is a safe way to mask. Because of the curve of the body it may be easier to mask one side than another so it is best to mask the difficult side first, spray that initial colour. This may give you some paint bleed, but that doesn't matter because now you mask the easier side and you should get a good crisp line between the two.

So masking takes time - not just to do but to plan.
Tamiya masking tape is very good. It comes in a few different widths and is about ÂŁ3 for a roll. It gives good adhesion but not too tacky so that it marks or pulls paint off. It also gives a good seal and crisp lines.
Mask off the area that you do not want painted. Remember to mask the inside too and also holes where windows and grilles and air intakes are. Because the paint goes every where and you could find the paint going inside the car body and back out through an air vent and onto a part of the car that you do not want it to be.
Once you think you have the area masked off check it over, look at the cut lines and crevices. Can you see any gaps, the tiniest gap will let in paint!!!!

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Then spray the colour you want. Wait for the 3rd coat to dry, maybe an hour or so and then remove the masking tape. You will then have to wait 24 hours for this colour to dry. I recommend that you rub down the edges of where the masking tape was because this can cause a 'lip' of paint. If you rub this area down it will remove the lip and this will make the masking tape seal much much more effectively the second time around.
Then mask up again. Whatever you do, do not mask the painted car and then leave it for a day before you want to paint it. The longer the tape is on the car the more possibility there is of the tape damaging the paint surface. So make sure you have enough time to mask up, paint 3 coats and more time to remove the tape once the paint is just dry.

Paint the car as before.

What if you unmask the car and you find you didn't get a good seal and you have paint bleed. This can happen on cut lines or where the body takes a sharp turn, like in air vents or around wheels. It's not a disaster. It's a pain. I make sure all the paint is absolutely dry. At least 24 hours after the last coat was applied. You can then try and rub the paint off with a nail file or cloth dipped in nail polish remover. Alternatively, spray some of the paint I need to use to cover the area into the spray can top. I then use a clean dry brush and cover the area by hand. You need to use minute amounts of paint. Less is more! Use gentle strokes. Use a few thin coats rather than 1 thick one rubbing down with a nail file after each thin coat.
However, it is far far easier to make sure your masking is 100% good before you paint, it will save lots of time and frustration in the end.

It can take 2-3 hours to mask a car - depending on how intricate the design is or how many colours you are using.
Painting takes around 5 minutes per colour per coat. Plus drying time.

Stage 4. Decalling.

You will need:
Scissors
Curved Nail scissors
Decal paper
Clear Lacquer
Inkjet printer
Internet connection
OR
Commercially produced decals
While you are waiting for paint to dry etc you can be preparing decals. I usually use my own decals. However, using commercial decals is ok.
Look Pendle Slot Racing Decals.
Look Pattos Place Decals.
For excellent decals.
One thing to note about commercial decals they are ULTRA Thin. As a consequence they can be hard to use and you can get quite frustrated at creased or torn or stretched decals.
I try and use my own as it is cheaper and they are easier to use.

Planning your decals
I print all my decals on a sheet of a4 plain white paper. I cut them out and then put them on the body with a small piece of blutac to make sure they are the right size and look ok. I do this as many times as it takes to get them looking right. It is far easier to waste a piece of plain paper rather than use up all your more expensive decal paper with continuous mistakes.
This also ensures you have the right number of decals for the car

Producing Decals
I buy my decal paper from Crafty Computer Paper.. ÂŁ1.55 for an A4 sheet. 1 A4 sheet will do up to 6 cars. Depending on size and number of decals.
Go on the internet and search in Google for logos.
Save the logo files to the PC.
Open a blank word document. Click Insert -> Click Picture -> Click From File.
You then select the logo you want and it will put the logo into a word document.
If you then single click the logo in the word document it will allow you to resize the logo to fit the car. I suggest you get all the logos onto the file you need. Then save the file and print it on a piece of normal white paper. Then cut each logo out and offer it up to the car making sure that all the logo's fit and look ok. Once you are happy with the size of the logo's arrange the logo's on the file in word so you use the space efficiently EG Same size decals on the same line. It's amazing how much paper you can save by doing this.

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Take the piece of decal paper and wipe it over with a soft dry cloth. There tends to be something on the surface of the paper that can sometimes stop the ink from sticking. Once the surface of the paper feels smooth and clean print off the decals. You will have to experiment on the best setting for your inkjet printer to get the best results. Each printer will be different.

Leave the decals to dry for 24 hours.

The decals can then be lacquered. I use Halfords Clear Lacquer. It is ÂŁ5 in an aerosol can. One can will do about 10 cars or more. Each sheet of decals will need 4 or 5 THIN coats. Leave at least 30 minutes between each coat.. If you spray too thick the lacquer will crack and the decals will get ruined. Leave the lacquer to dry for 24 hours before you need to use them.

How do you get white decals?
Well this can be tricky. First of all you need to use white decal paper. Ink jet printers don't print white. Have a look at these two decals. The Esso decal is easy to produce on white paper - the Renault is very tricky. The reason is that you can cut round the edge of the Esso decal and the only white bit will be the Esso, however the Renault logo will need to be filled with a colour to match the colour of the car surface. This can be very hard to achieve. You will need to play around with the decal in paintshop or some other software like that. I will usually use commercially produced white decals for intricate decals. Alternatively you can cut the Renault decal into two V shapes and apply them individually.

Applying your decals:
Cut each decal as close to the decal as you can. Curved nail scissors are good because they are sharp and allow you to cut round corners surprisingly easily.
Pop the decal into a saucer of luke warm water for 5 seconds.
Take out decal and put it on the work top and leave for 30 seconds.
With damp fingers slide the decal paper away a little so it creates a lip of decal free of the backing paper.
Lay the decal on the car and slide the decal paper away.
Reposition the decal with a damp finger.
Dab the decal dry once you are happy it is in the right place. Get rid of bubbles and excess water by gently wiping over the top of the decal.
If the decal is going over a cut line or a curve in the body I would recommend using one of the decal set fluids available from model shops. These will soften the decal and give it sufficient suppleness to attach itself to the lines of the car without cracking or lifting.

The process for applying commercial decals is exactly the same.

The time decaling takes can vary. I have done a Martini Jaguar and the decals are VERY difficult to get right and can take 5-6 hours, plus the time it takes to find the decals online and size them and print them. You could find the whole decal process takes a whole day to do. The thing to do is keep the decals you produced on your PC so that you can modify them for other cars. That way you don't need to keep recreating them.

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Also you can use sticky backed paper to make some base decals for the cars. That way the base matches the car. The base stickers are made in just the same was as normal decals but they are not water slide. The back peels off to stick on the base. Note these will still need lacquering to protect the sticker.

Decals will need 24 hours to dry. Remember to only apply the decals once the paint has had 24 hours to dry.

Note: Some people apply one coat of lacquer to a car before decaling. This gives a good smooth surface for the decals to attach to. Painted surfaces, even though they may look shiny and smooth are actually far from it. They will have microscopic pits in them and this will trap water and air, this can cause friction on the paint surface which makes decals hard to move, it can also make decals appear shiny. So this may be worth doing. But remember to let the lacquer dry before applying the decals.

If you are doing a Matt finish to a car you may need to lacquer the car before you apply the decals. Matt paint is not smooth, so when a decal is applied it traps tiny air bubbles behind the decal giving it a shiny appearance. However, this will not be apparent if you are using white decal paper as you can not see through the decal.

Stage 5. Detailing.

Once painted it is a nice touch to get the detailing done. This can be anything that suits the car. Painting driver figures, putting chrome on bonnet clips, black rubber sills, a pit babe to match the car, making indicators orange, giving the dashboard dials.

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This is usually done by hand with either acrylic or enamel paints, usually on very small areas
As long as it is able to be seen in 1:32 scale give it a go

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Stage 6. Lacquering.

You will need:
Lacquer
I quality wide brush
After allowing 24 hours for the paint and decals to dry you are ready to lacquer. I use Johnson's Klear Floor Polish which is about ÂŁ2 for a bottle. A bottle will do 100's of cars, unless you spill it on the dining room table like I did!

This is my method, I will then outline other methods others use.
Method 1. I bought a Sable three quarter inch brush. I brush on a thin coat of Johnson's Klear. I let it dry for at least 30 minutes. I then brush on 4 more coats. You then have to allow at least 24 hours before it will be ready to be handled and put together. Whilst drying you have to protect it from dust with a cover. However, if you do find something has dropped onto the car you can apply more Klear and rub it very lightly with the brush or a finger nail and the bit of fluff will come off. You must stroke the brush slowly, if you stroke too fast air bubbles will form on the car. Again if this happens you just need to apply more Klear and they will dissolve.
Advantages: Cheap
Disadvantages: Have to have a good brush and a steady patient hand.

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Method 2. Take an ice cream tub and dip the car in it using your trusty coat hanger. Remove the car and let the excess drip off. Hold the car at an angle and allow the excess to run off or form a pool at a corner of the body. Lightly touch a piece of absorbent paper against the pool of Klear and it will go. Leave to dry for 30 minutes and reapply another 4 coats.
Advantages; Quick
Disadvantages: uses more laquer and can form pools of liquid which could go cloudy

Method 3. Use Halfords Aerosol lacquer. Put the car on its water bottle base and spray the car just like you did with the paint. Apply another 3 or 4 coats.
Advantages: Quick & easy
Disadvantages: Most expensive. Lacquer can go on thick. Can react with some decals and ruin them.

If the lacquer does go cloudy it may dry clear. If you are worried apply more lacquer and wait a few seconds and then wipe excess off.

Lacquering takes 5 minutes per coat.

Stage 7. Assembly.

You will need :
Various glues
Phillips screw driver.
Some cars are easy to take assemble, they almost just clip together like the Scalextric Jaguar XJ220 or Scalextric Ferrari F40.
However, the more modern cars have plastic parts that need to be glued. If this is the case then I use superglue if there are no clear parts close to the area. Also use it very sparingly. I also use plastic cement, hot glue and PVA Glue, depending on the part and the location of the part.
Sometimes you have to do the gluing over two days as parts have to dry and fix in place before you put more bits on top of them. It's handy to remember how you took the car apart because on some models like the GT40 you can only put them back together in a certain order.
I tend not to use glue on wing mirrors because I am of the opinion that it is better they just fall off in a crash rather than breaking off.

Note Superglue can cause fogging of clear plastic and can cause a white mist on painted surfaces. So use sparingly. Also if you feel you have to use superglue near a clear plastic part then use just a drop and leave the parts open to the air after gluing. This allows the fumes from the superglue to dissipate away and up from the glued area. For example if I were gluing a cockpit to a body I would leave the body upside down after gluing to allow the fumes to rise and waft away from the clear plastic of the windscreen. Having said all that if you use superglue near clear parts you are taking a risk.

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The finished body is then put on the cleaned chassis. The engine is lubricated and all moving parts either greased or oiled.
All parts are re-checked to ensure they are 100% ok.
The finished car is given a quick test with a 9v battery to check the motor and lights work and the motor turns the wheels.

Assembly can take a couple of hours but maybe spread over two days.
 
#28 ·
QUOTE (ThaiRacer @ 6 Nov 2008, 11:23) <{POST_SNAPBACK}>Graymalkin33,
What is the percentage of the isopropyl alcohol? I've heard that the 70% stuff doesn't work, and that the percentage needs to be at least 91% or thereabouts.

I have only used the 90%+

I thought it would be a waste of time & money trying any less.

I have bought a 1ltr pot and so far i have stripped 18 cars with it, i think i will get another 18 out of the can before its gone.
 
#29 ·
I am curious about the sanding aspect of the painting procedure. A part of it is sanding to remove the painting and sealing at beginning and the other part is sanding to perfect the paint job. Can one elaborate on both procedures. What kind of sanding papers are being used? What is the goal is sanding to perfect the paint job? What is wet sanding?

Thanks in advance.
 
#30 · (Edited by Moderator)
That is a special sand paper usually black that is water proof and comes in very fine grains.

You use this sandpaper with water keeping it wet to give the best and smoothest sanding possible,
and your also not breathing the paint dust in.
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Very nice stuff should be available in any DIY store.

Cheers,
Jaak
 
#31 ·
Hi RallyP,
I'm not one to sand a car down to remove paint, I prefer to use something that you can soak the car in to remove it, I'm now using alcohol to do this.
The reason? sanding the paint off can leave tiny scratches in the plastic that can sometimes show through the new paint job, or are at least a pain to get rid of.
But when it comes to painting a car, wet sanding can play a very important part in the final paint finish.
Assume I have a car that has already been stripped of paint and is ready for primer, once it has been primed with a plastic primer (about 3-4 coats) I let it dry for at least a day and then rub it down under a slow running tap with wet and dry sand paper of no less than 1000 grit.
This will usually take some of the primer off on corners and raised areas, so it's another couple of coats of primer, and then another go under a running tap with 1500 grit paper this time. This process is repeated untill the car has been wet sanded and there are no areas of missing primer.
This part is important for a good top coat finish. The work you put in at this stage will show through when the car has it's proper colour applied.

Pretty much the same goes when it comes to applying your colour of choice.

Seem like a lot of work? The main reason for all of this is that most people (I'm guessing here) will be using aerosol cans for this. Aerosols are intended for use on full size cars, so paint pigments and particles are 32 times too big!!
Wet sanding (and it's important to do this very wet, hence my doing it under a running tap so the paper does'nt clog with paint) will reduce the high points in the applied paint to give a nice smooth finish, not necessarily a glossy finish, but a very smooth one.
Once you have got this far, you could go on to using a cutting compound on the paint to further smooth it down, and then a polish to achieve a gloss finish.
It's also important to bare in mind that you should'nt use anything that contains silicon if you intend to use a clear coat on the finished car.

Bit longer explanation than I first intended
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, but I hope it helps.
If you would like more info, I may still have some model magazines that explain the process a bit clearer, and have pictures aswell, if you like I could dig them out and scan them and email them to you. If I can still find them
Image

Mike
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#32 ·
QUOTE (rallyP @ 27 Jan 2009, 16:22) <{POST_SNAPBACK}>I am curious about the sanding aspect of the painting procedure. A part of it is sanding to remove the painting and sealing at beginning and the other part is sanding to perfect the paint job. Can one elaborate on both procedures. What kind of sanding papers are being used? What is the goal is sanding to perfect the paint job? What is wet sanding?

Thanks in advance.

I personally dont do wet/dry sand paper.
I have sanding sticks.
I am not sure what grade it is but my finest grade is smooth - its actually not abrasive to the touch what so ever BUT it still removes paint very well. Im guessing it must be in excess of 2000 grit.

Miker is right if you dont use a fine sand paper you get scratch marks.

Sanding sticks can probably be found in your local model shop or hobby shop.
 
#33 · (Edited by Moderator)
Thanks, Mike. The info is really appreciated (and a good complement to this thread). I am curious about the last aspect you mentioned, the cutting compound plus the polishing. What is cutting compound? and what is involved in polishing?

I do not want to give you too much work on scanning the pictures. I will try to find the pictures on the web, but it would be great if some member would post some pictures on this thread. A thread about painting like this one (and a very good one) should have pictures.

Thank you also Jaak and Graymalkin.

Graymalkin, you use a scourer pad or fine wire wool to remove paint in the beginning, doesn't it scratch the plastic?

I got some of these sticks, should one wet them?
 
#35 · (Edited by Moderator)
QUOTE (rallyP @ 27 Jan 2009, 17:35) <{POST_SNAPBACK}>Graymalkin, you use a scourer pad or fine wire wool to remove paint in the beginning, doesn't it scratch the plastic?

I got some of these sticks, should one wet them?

Well the car is soaked first in isopropyl alcohol for 12 - 24 hours.
Once you take the car out of the alcohol you will notice the paint is sort of blistered and bubbled.
You then wipe the car with the scourer to get the paint off DONT SCRUB it.

Some people use an eraser to do this. I personally have not but some people swear by it. It sounds ok to be - and is kind to plastic bodies.

You will probably then be left with an almost bare car but paint tends to get stuck in the hard to reach places so soak it again and then wipe it or try a tooth brush on it to get the paint off.

No ive never used water when sanding with the sticks. Just make sure your sticks are very fine.
 
#36 · (Edited by Moderator)
Thanks Graymalkin, I am getting a better feeling of the process. I did in the past some painting jobs, one involved a relivery of the carrera VW MK1 and the liquid I left the car in (brake fluid) did nothing to the paint and made the plastic soft and then brittle. There were also some parts were trhe new paint did not stick. So I guessed that some sanding would have done some help to the sticking of the new paint (I confess that I did not used primer in that relivery
Image
).

The reason for all these questions, is that I have around 10 kits to paint and I want to have all the knowledge and weapons with me to help me complete this task.
Some of the kits probably need some putty, so sanding will be a necessity. Also, with many of these kits I want to do a real good job and they are not easily replaceable.
 
#37 ·
Probably the most recognised form of cutting compound is 'T-cut'. They are more or less liquid sand paper of a very fine grade, and should be used with care as they will do the same job as sand paper, and if used too vigorously will remove your new paint job!!
Various types and makes are available. I use one called Farecla (G3 I beleive) left over from my 1:1 car spraying days. Most automotive cutting compounds are intended for use with a machine polisher, but G3 is useable by hand.

Polishing is at it suggests, you are polishing the paint, as you would on your 1:1 car. Use a soft clean cloth, the softer the better, and remember that if you use cutting compound or and/or polish you need to take as much care as when useing sand paper and work on a small area at a time. It's also important to make sure that the paint has had enough time to dry, otherwise all you will do is just push the paint down and move it around the model and not remove it like you should.

As Graymalkin suggests, many products are available from model/hobby shops with the sole purpose of working on scale models. This includes cutting compounds and polishes, but to be honest, I have found that most automotive products do exactly the same job (more or less) and you tend to get a much larger quantity for your money. So much so infact that I still have products for modelling use that I bought decades ago, and I'm still useing them to good effect.

I'd love to scan the magazine articles that I have and post them here, but I don't want to get into the whole copywrite problem.

Mike
Image
 
#38 ·
QUOTE (rallyP @ 27 Jan 2009, 18:00) <{POST_SNAPBACK}>Thanks Graymalkin, I am getting a better feeling of the process. I did in the past some painting jobs, one involved a relivery of the carrera VW MK1 and the liquid I left the car in (brake fluid) did nothing to the paint and made the plastic soft and then brittle. There were also some parts were trhe new paint did not stick. So I guessed that some sanding would have done some help to the sticking of the new paint (I confess that I did not used primer in that relivery
Image
).

The reason for all these questions, is that I have around 10 kits to paint and I want to have all the knowledge and weapons with me to help me complete this task.
Some of the kits probably need some putty, so sanding will be a necessity. Also, with many of these kits I want to do a real good job and they are not easily replaceable.

After you strip the car you must wash it

After you have washed it you must rinse it.

Then prime it as soon as possible once its dry.

The brake fluid damaging your car body...well anything could have damaged the body - i have had 1 accident with isopropyl alcohol and 1 accident with Acetone free nail polish remover.
It depends on what the body is made of.
Older scalex cars are more prone to melting/warping.

I would put the body in to soak in the morning on a weekend so you can keep an eye on it. Dont worry if after 5 hours it looks like nothing has happened to the paint. It can take 24 hours! But keep checking it to make sure no damage is occuring.

Smaller parts like mirrors should not be left in the alcohol too long as they can be affected more.
 
#40 ·
You should be able to find it in any place that sells car parts and spares. Look for the section where they keep the Bondo, and all the other related body repair stuff should be there.
3M does a good quality paper, tends to stay together well when used wet. You only need to cut off small pieces for a slot car body, so one sheet of 1000, 1500, & 2000 grit should keep you going for a while.
Mike
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#42 ·
Another good solvent is Surgical Spirit - this is good at getting rid of the adhesive residue left by stickers (and is used for wiping off Araldite smears and cleaning up Loctite cyanoacrylate glues. It's quite cheap too (at about 70p for 300 ml) and is available from almost any pharmacist/chemist.

What this correspondence refers to as wet paper is usually known as 'wet and dry' paper. If you ask in any hardware supplier or Halford (auto chain) they will know what you mean by this.
 
#43 ·
Hey guys,

Great info so far.

Some of what I'm about to post may be a little obvious as to how I've found myself in the middle of a disater, but I'm relatively new to slots and am in the early stages of my first relivery and I have run into trouble already.

I purchased a white scalextrics mustang thinking it would come as white plastic and unpainted. Having recieved it I may as well have just got an old painted one as I have had to strip the white paint off anyway. I have completely pulled the car apart. As in completely pulled it apart and removed the photo etched grill bit, head lights, driver, rims, disk brakes, bumpers, any glued or plastic welded bit that could be seperated is now seperated.

I used acetone free nail polish remover and the body has cleaned up a treat. However, there are some parts which it reacted with. The nose cone panel and the panel around the tail lights seems to be like a hard rubbery plastic and the nail polish remover seem to kind of slowly melt it. This is probably the part where you guys are going "Oh nice one peanut". I just assumed that all the parts were made of hard plastic like the body. I want to paint the rims gold too and as I through the rims in to the nail polish remover with the nose cone and rear panel they've all reacted at the same time.

I will be able to salvage parts off another mustang at home and do one up to look good and the other will be kind of the donor car made up of all the bits that didn't work. The slightly deformed parts are still salvagable, but I just wanted my relivery to look good.

Anyway, I'm just looking for advice befor I go too much further... How do I strip the paint off the nose cone and rims???? Or do you just paint over the existing paint??? The rims had a chrome appearance, but if I use the rims off the other car they appear chrome. Can you just paint over that - Do you need to spray primer first???

I went to the trouble of punching the disc brakes out of the front rims only to slightly stuff them anyway.
Any help on painting these parts would be greatly appreciated.

Cheers

Kirk
 
#45 ·
You've hit on a fairly common problem which usually requires you to destroy a car in order to find out what works. It seems to me that the producers of these white cars have collectively never actually tried to repaint one.
Firstly the white finish on Scalextric, Ninco and Slot It cars shouldn't need to be removed. A variety of plastics and methods of painting are used and not all finishes react in the same way. Some cars have clear body shells which have been painted over and some are a basic colour to begin with.
I always rub the body with a sanding pad to remove the top lacquer and shine. You can then apply a primer without a problem. I use a product called Oakey Between Coats Contour Sanding Pads comes in extra fine and super fine. Try to find it in the sanding section of your local DIY outlet.
From memory the wheels on the white Mustang have a chrome coating on then which is best left alone. You can spray over the top. Use gray primer first. Anything "plated" is best left.
Removing your own paint mistakes is done easily with Isopropyl Alcohol but this needs careful handling and won't penetrate some finishes. If you use acetone free nail polish remover then use on very fine synthetic wire wool to get the best finish. NEVER leave anything soaking in the stuff it might not be there when you get back.
A couple of points to ponder over. Why do Scalextric give a hard white finish and fully assemble the car when it's being advertised as a potential re livery project. Why do Slot it glue into place parts that then need to be carefully and painstakingly removed before the car can be readied for painting. i.e. the rear suspension unit on the Alfa 33/3 and the front grill on the Nissan to mention but two.
 
#46 ·
Cheers for the help Monkfish,

I've, cleaned up the nosecone and tail light surround - I used a very fine nail file to take all the crap off and it has come up pretty good given that I thought it was all going to end up as a battered wreck.

The car body is now fully primered up and all looks neat. The wheels look ok in primer - but not brilliant. I'll paint them black and swap them with another older car - Being black rims, any minor deformaties should be hard to pick up. The chrome rims from the donor car I won't strip the chrome off, I'll just spray with primer then a fine coat of gold paint.

The car is kind of a gift to my old man, hence why I wanted it to all look ok.
 
#47 · (Edited by Moderator)
Two or three things to mention here. Reference is made of sanding your paint off, one thing to remember sanding isn't just to remove the paint, it is to also key the area for the primer, A keyed area will let the primer adhere to it better than on a smooth finish. Halfords do a couple of primers, a plastic primer which is the one I use and this is actually the best one for plastics as it bonds to the plastic much better. The keyed are is filled by the paint so you don't get any scratching showing up. Rub done the primer with the finest grade paper you have and you are ready for your top coats then. The way I personally sand is with a set of sanding cloths and not paper. These were purchased at a model show they were fairly expensive at around ÂŁ12 but I have had them years now and they last for ages.These are so good you can actually polish a watch face with them. I know I have tried ittaking all the scratches away and giving the face a high crystal shine. Lastly Captain I would say that you should remove the chrome as any type of paint be it primer or top coat does not adhere well to this type of finish, It will just rub off
 
#49 · (Edited by Moderator)
Thanks Graymalkin, just completed the first painted cars since 25 years. Excellent guide (with or without photos!)

Cheers Mate!!!

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Just gotta stick all the bits back in.....
 
#51 ·
Hi,
Just can across this thread and would like to make a couple of points having in the long distant past resprayed a motor bike and Mk1 Cortina (both 1:1).
To smooth of the final top coat you want cutting or rubbing compund which is very fine and as you use it you will see the gloss finish improve. When you spray you always get a fine overspray from the edge of the spray pattern on the paint finish and this need removing, ie cutting back, and as this goes the gloss finish improves. Don't use T-Cut as this is is a course cutting compound designed to remove old dulled layers of paint. Unless you bake the paint don't polish it for at least a month and the try an area out of sight, if the polishing cloth is picking up the paint colour leave even longer.
After sanding coat use a tackcloth to remove every fine partical left on the surface.
If you get any runs they can be sanded out and another coat applied.