how to paint interior

The biggest factor to make any paint stick to a surface is the proper preparation of the panel. If it has a grain in it, get in there with a cleaning solution and a scrub brush. Once you get all of the area's scrubbed, rinse it off and scrub it again. Do all area's and around to the backside a little bit. If there is any silicone on the surface it will make the paint "fish-eye" and make the panel look like junk. Do not try and cover the whole panel with one thick coat but slowly cover it with lighter coats so you don't fill up the grain. Use the paint companies recommended flash times between coats. There are plastic prep materials out there to help with the bonding of the new paint to the plastic panel and use one companies system and don't use a prep paint from one company and then a color from another and then a clear from a third company. Normally a company that makes paints cannot and will not gaurantee how another companies material will work with theirs. There are just too many variables. When you spray the part, try and wrap some of the paint around the edges and onto the backside of the panel lip just like if you were covering the piece in vinyl. You just don't want a sharp paint edge that is more easily chipped. Also wear a good respirator so you can be around a while to admire your work.

Jim