What paint do you use for the inside of a polycarbonate shell? Does it have to be Tamiya? Asking for a friend.
It does not need to be tamiya, plenty of other brands exist they are all pretty similar and most model shops have a selection. just make sure the paint is intended for polycarbonate. (It needs to be a specific type of acrylic paint that will flex with the shell, enamel will flake off.)
Main things to watch are:
Wash the shell first to remove the release agent from the mold.
Get the right sort of masking tape from a model shop. The stuff you buy for house painting has too thick an adhesive layer and will allow paint to get underneath
(Most shells come with pre cut window masks these days, so you may not need masking tape at all if your design is 1 colour )
how good is a 4wd RC rally car on grass… ?
Assuming it’s 10th scale the answer will be that it’s rubbish. The wheels are too small and they also grip roll a lot as the width is narrow to match the real car. Better off with a truck or a buggy if that’s what you want to do.