Paint problem

[excotec]

Hey guys,
I am working on my Villain restoration ( a seperate thread to follow) and I am having a problem. I bought this used and it was painted a red color with really thick paint.

I sanded the boat and put a coat pf primer down. There are spots were the primer cracked as soon as it hit the hull. I tried wet sanding and washing with dawn to get all the grease off and it done the same thing again. The hull felt smooth as silk after wet sanding. Could there be something on the hull causing this or do I need to just keep sanding and priming until it stops.

[Massey]

This is a condition called Lifting. It is caused by incompatable paints. The solution is to remove ALL the old paint and start fresh. This not only happens in our models but in painting real cars too. There are some sealers that will help prevent this in the automotive paints but you did mention that the paint is thick so sealers will not be a good idea since they are usually really thick too. It will not matter how smooth you sand the old stuff if you can still see the dry lakebed looking patterns then it will just do it again. Good luck

Massey

[excotec]

Well then I will get out the sand paper and get back to work on it. I have not even touched the cockpit area. Is their a chemical sollution to get "most" of the old paint off that will not harm the plastic. This would save alot of work on this part since there are several tight areas in there that are going to be difficult to get to when sanding

[wingnut163]

now tha i know its plastic, use oven off, the oderless kind. takes paint off and will not harm the plastic. spray it on, let it soak, even over night, use a tooth brush gets the crevies too.

[Massey]

Wingnut has a good idea but before you just spray the oven off on your boat test the stuff on some bare plastic some where on the boat that wont matter much if it is a little dammaged by the Oven Off. Oven off can melt some plastics but is safe for most so test it first or your boat may turn into a puddle of gooo

Massey

[excotec]

I am testing it now on the cockpit. If it all goes bad I can buy another one. I have seen them on ebay for less than $15. If it works good then I will do the hull and start from scratch. It seams like the more I sand the worse the problem gets. I am not sure what type of paint the original owner used but it sure is a thick mess.

[excotec]

It works!!!!! Kinda. The primer I put on does not appear to be effected by the oven clearner but the original paint comes off very easy. I should have came here first and I could have saved myself alot of time and sand paper. My arms are shot so I am calling it a night. Before we go to bed I will soak everything again with the oven cleaner and let it sit over night. Thanks for the tip wingnut!

[Kmot]

Another method to remove paint from styrene plastic bodies that has been used successfully by modelers is rubbing the old paint with brake fluid.

[CG Bob]

Pine-Sol also works well for removing paint. You can use an old toothbrush to scrub the paint out of the details.