[lakersfan1]

Agree with Cartman. Plastic parts usually have alot of mold release on them, which is going to act like a grease. The primer and color will usually go over OK, as the wax or grease will just pull to the top of the paint. But once the primer is applied to try sealing it in, it'll look like ass.

Open the phone book to find an Automotive Paint Supply shop. This will be who your local body shops buy paint from. They should have a full selection of SEM products, which include a plastic scuff cleaner, a plastic dewaxing cleaner, and then the plastic flex spray that you'll need to spray just before the initial primer layer.

About the waiting two days between color coats, usually that's OK as long as you wetsand the project first. Check the material data sheet for your paint. But this is not the reason for your troubles.