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From: Ok! So you don't believe in conspiracies, but will you acknowledge the possibility of there being coordinated activities in secret places? Texas
Please Help with Interior Painting
Started preping some interior plastic for paint and got some questions.
Do I need to use adhesion promoter, which states that it's a clear primer, and regular high build primer?
Also can I prime, sand the primer, and finish coat paint within a 12 hour period?
I'm using duplicolor rattle can products. My intial sanding and cleaning is done. I plan to apply adhesion promotor in the morning.
Adhesion Promoter is good stuff. If your painting textured parts, I would suggest a light light light coat of bondo to fill it in as much as possible, for a smoother finish. And lots of wet sanding, stepping up from 400 to 2000 before you lay down color.
Take some dawn dish soap and wash the part you are painting. Then wash it again one more time to make sure you got everything off of it. Take the adhesive promoter and put a couple of lite coats on the item your painting. Wait about 5 min between coats. After it dries put several coats of paint.
Also can I prime, sand the primer, and finish coat paint within a 12 hour period?
I believe on the DupliColor cans it states you can recoat in 10 minutes and that you can sand the primer after 30 minutes or an hour. I've done quite a few pieces with DC products and have generally finished them within the same afternoon. Good luck!
Any auto paint, duplicolor or the real stuff from PPG, Dupont, Sherwin Williams, House of Kolor etc. works great. In a nutshell, I sanded the texture off my parts, then primed and painted them with House of Kolor Kandy Cobalt Blue over a silver metallic base. After doing it once, the best way to paint and paint the plastic is:
1. Wash them with Dawn dish soap and then wash them again.
2. Scuff them with 100 or 120 grit sand paper.
3. Prime them (3 or 4 coats) with a high fill epoxy primer.
4. Block sand the parts with 400 wetsand paper and then 600 getting a super smooth surface
5 Spray another 2-4 coats of primer.
6. Wet sand with 600, 800 and then 1000 grit.
7. Tack rag and spray base coat, 2-4 coats depending on color etc.
8. Tack rag and spray clear coat again 204 coats depending on if you plan to wetsand and buff the parts.
9. If you're going to buff, wet sand with 1200, 1500 and 2000 then buff, polish and glaze.
I did 32 parts in my interior and modified 4 of them and it took me ~160
hours start to finish including carpet and swapping seat leather. I also stripped the vinyl off my lower door panels, knee bolster and glove compartment (no small task). After I was done, EatRice told me I should've used a heat gun the strip the vinyl.
Last edited by 74-Roadster; Jun 6, 2007 at 11:49 PM.
Have not used epoxy high build primer.
Have used 3M Automix 5907 coating polyolefin adhesion promotor for TPO repair. ...and it's intended to be sprayed onto the plastic part before before anything else. Sounds like epoxy primer forms a good bond with plastic, w/o need of an adhesion promotor?
From: Ok! So you don't believe in conspiracies, but will you acknowledge the possibility of there being coordinated activities in secret places? Texas
Thank you guys very much. I've received an overwhelming amount of help. This place is great.
I'll share when it turns out right. I actually sanded all of the texture off of my parts so hopefully it'll save me some work later.