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Discussion Starter · #1 ·
Hi,
I am trying to use tamiya spray to paint my resin shells, but i am finding that in some areas the resin seems to repel the paint. On one shell I get a patch that repels paint on the other I get a galaxy of pin holes as soon as the paint hits the surface - this only happens to on one area of the shell.

I have cleaned the models with a tooth brush and washing up liquid, I have also used an engine degreaser on one which helped but didnt solve the problem. I am reluctant to continue using the engine degreaser as it didnt completly solve the problem and I have a feeling that the resin has been softened.

I am not using an undercoat as I have used the Tamiya spray directly on plastic kits with very good results.

Can anyone recommend a suitable cleaning product ?
Is undercoat an essential for resin bodies ?
if so what is a good product that is thin enough to preserve detail ?

Thanks for any help
Duane.
 

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Hi Duane,

What you should do is put the body in vinegar (the clear one) for 10 minuttes. That should clean the Resin without soften it.

Morten
 

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I think the best thing to use is a product made by PPG, called Acrlyiclean. You can get it where they sell PPG automotive paints. Body shops use it to remove silicone wax residues before sanding, and before painting. It works well on body oils also, and leaves no residue. I have not found any plastics yet that it not compatible with, but I am hesitant to use it on lexan.
Think I would use the Tamiya primer however.
 

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Phil Kalbfell
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I use the silcon remover product. It is marketed under several names, just tell the local auto paint supplier that you want to remove silicon bassed polish. The pin holes may be just that,very small pin holes in the casting. just fill them with a suitable filler.
 

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Discussion Starter · #5 ·
Thanks all for your replies. I have gotten tired of looking at these particular models and so will put up with the paint job as is for now. I will definitley try your recommendations next time I build a resin kit or revisit these.

I have on order some 'Classic' fibreglass bodies (see new thread) and would appreciate any tips you may have on working with these,

Regards
Duane.
 

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Hi Duane,

I've had similar problems in the past and have now sworn off Tamiya sprays completely. I now only use Auto paints and have not had any problems since.

I still use the Tamiya pot paints for detailng.

Paul
 
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