How to prep fiberglass parts for paint?
#21
Melting Slicks
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Re: How to prep fiberglass parts for paint? (SEE3ER)
Steve, Autobody Paint & Supply is behind Main Hardware in East Hartford if your still looking for a place to buy the materials also Levine Auto is down on Charles St(I think) not far from Airborne Coatings. Also if your looking for a pro to do the work, a friend of mine has a small shop at his house that is always looking for side work. He fixed my door this winter and he's painting a friends 82CE currently, let me know I'll hook you up with him his shop is in East Hartland about 15 minutes from Mark's.
Tom :cheers:
Tom :cheers:
#22
CF Co-Founder
Re: How to prep fiberglass parts for paint? (l2vette)
#23
Drifting
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Re: How to prep fiberglass parts for paint? (69vette66)
hey all, if you use the K36 primer, Do not wet sand. The K36 contains talcom and soaks the water up causing problems down the road. We found out the hard way. Thats what my PGG reps have told us. Instead I would sand with 280 grit, then a final once over with 440 grit. at least that what I do.
Larry :cheers:
Larry :cheers:
#25
Here's what I did when I painted my car.
1. wet sand with 400 grit paper.
2. wash and clean
3. inspect and fill any inperfections with a polyester based body filler and or glase.
4. wet sand repairs to blend.
5. wash and clean
6. spray with PPG DP epoxy, mixed as a sealer, 2 coats.
7. lightly rub down with fine scotchbrite.
8. wash and clean.
9. wipe down with prepaint degeaser from PPG. (can't remember product number)
10. spray with PPG K36 primer surfacer, 3 coats.
11. wet sand with 600 grit paper.
12. wash and clean.
13. wipe down with prepaint degeaser from PPG.
14. wipe down with a tack cloth
15. spray your top coats.
16. color sand with 1000. 1500 and 2000 wet paper.
17. buff
Broken down into steps it sounds like a lot, but its not really. All the material from PPG comes with fact sheets explaining how its is to be mixed and used, make sure you get them.
I see you are in CT, I purchased all my supplies from Service Auto in Ansonia. They were very helpfull answering any questions that I had.
1. wet sand with 400 grit paper.
2. wash and clean
3. inspect and fill any inperfections with a polyester based body filler and or glase.
4. wet sand repairs to blend.
5. wash and clean
6. spray with PPG DP epoxy, mixed as a sealer, 2 coats.
7. lightly rub down with fine scotchbrite.
8. wash and clean.
9. wipe down with prepaint degeaser from PPG. (can't remember product number)
10. spray with PPG K36 primer surfacer, 3 coats.
11. wet sand with 600 grit paper.
12. wash and clean.
13. wipe down with prepaint degeaser from PPG.
14. wipe down with a tack cloth
15. spray your top coats.
16. color sand with 1000. 1500 and 2000 wet paper.
17. buff
Broken down into steps it sounds like a lot, but its not really. All the material from PPG comes with fact sheets explaining how its is to be mixed and used, make sure you get them.
I see you are in CT, I purchased all my supplies from Service Auto in Ansonia. They were very helpfull answering any questions that I had.
#26
Melting Slicks
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Hi n,
Welcome!
First Posts!!
What do you mean by "new panels"?
Are you referring to body panels?… hood?, doors?, roof panels?
Regards,
Alan
Welcome!
First Posts!!
What do you mean by "new panels"?
Are you referring to body panels?… hood?, doors?, roof panels?
Regards,
Alan
#30
#31
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Hi n,
Are you doing a collision repair?
Certainly the fenders would be bonded in place at the cowl and along the hood surround before preparation for paint.
While some people paint the hood off the car I believe most paint it in place along with the rest of the car. The normal blackout on the underside can done on or off the car but after the body color has been applied.
I'm not familiar enough with rubber/fiberglass bumpers to know for sure, but the photos I see seem to typically show the bumper being painted in place.
Good Luck!
Regards,
Alan
Are you doing a collision repair?
Certainly the fenders would be bonded in place at the cowl and along the hood surround before preparation for paint.
While some people paint the hood off the car I believe most paint it in place along with the rest of the car. The normal blackout on the underside can done on or off the car but after the body color has been applied.
I'm not familiar enough with rubber/fiberglass bumpers to know for sure, but the photos I see seem to typically show the bumper being painted in place.
Good Luck!
Regards,
Alan
Last edited by Alan 71; 02-14-2017 at 09:50 AM.
#32
I read all the posts from original and recent, and didn't see one person recommend to wipe the parts before you start sanding. If you don't, it's possible that any contaminates on the surface will be sanded right into the existing surface, and will cause issues with primer and topcoat.
It would also depend on what is on the parts as to how to handle the "painting" of the parts. I've used a 3M 222 adhesion promoter with a lot of success, but it depends what's on the parts before you start.
Whenever you paint anything, follow the manufacturers suggestions on how long to wait before adding the next coat of primer, color, or clear, commonly called the flash time. Some products won't perform long term if you wait too long between coats.
It would also depend on what is on the parts as to how to handle the "painting" of the parts. I've used a 3M 222 adhesion promoter with a lot of success, but it depends what's on the parts before you start.
Whenever you paint anything, follow the manufacturers suggestions on how long to wait before adding the next coat of primer, color, or clear, commonly called the flash time. Some products won't perform long term if you wait too long between coats.