I am enthusiastic about brush on house paints for track and borders. Excellent value for money. Have the local paint shop mix a pint of either interior or exterior acrylic paint in whatever color you prefer. I brush directly onto the plastic - no primer - and have had great results. A lot of coverage for little money, and easy to apply.
In the past, I've tried all sorts of primers, sprays, surface preps, fancy expensive paints - you name it, I've tried it. In the end, inexpensive basic house paint applied with a brush gave the best result.
In the past, I've tried all sorts of primers, sprays, surface preps, fancy expensive paints - you name it, I've tried it. In the end, inexpensive basic house paint applied with a brush gave the best result.