paint cure - Page 2

itb76 · 02-02-08, 08:56

Quote:

Originally Posted by David Fermani

Does anyone want to try an experiment?

No, but I'd love for someone else to try it!!

TaylorMade · 02-03-08, 12:42

Superior Shine is right; I'am also a honorable body/painter and excellent paint refinisher by trade and I to have painted (PPG) black (baked) and performed wetsnding,polishing;glaze and wax in the same day. It depends on the curing of paint, single-stage and basecoat/clearcoat.

Accumulator · 02-03-08, 10:52

Quote:

Originally Posted by PoNyUp

.. they got it looking pretty all right, pretty swirled! Anyway, since I was told they did wax it, should I try and remove the wax(just in case)...just as a precaution? Thanks again.

I imagine you want to deswirl it, and the polishing that'll accomplish that will remove any wax. Then you're back to deciding what you want to do during the curing period.

brwill2005 · 02-06-08, 07:22

I just received some clarification on this issue from Dr. G, the founder of Optimum. He did work for PPG in the past so I trust his analysis. He stated that a factory finish is pretty much cured when it rolls off the assembly line because the paint is baked. The issue is refinished paint which is usually not baked and takes up to 30 days to cure. During this time SOLVENT based waxes/sealants should not be used because they can soften the paint. Anything with abrasives should not be used also. He did say WATER based waxes and sealants CAN be used during the cure period without any ill effects.

David Fermani · 02-06-08, 08:32

So, according to Dr. G, Body Shops aren't supposed to sand and/or buff fresh paint? I don't know 1 shop that doesn't? Even 3M approves & promotes sanding and buffing of fresh paint. You also mentioned that "refinished paint" paint isn't baked, but it is? At much less temps than the factory. Also, this means that bumpers on brand new vehicles fall into the "refinished paint" category and aren't cured when they hit the dealerships. I think again we have another person's rendition/recommendation of what *should* be avoided, but is there any data or evidence to back this up? I think until we do, these claims could be perceived as no more than wives tales? I don't know who to believe at this point?

brwill2005 · 02-06-08, 09:05

No. When referring to the use of abrasives, he meant after the post-painting polishing was done because the paint is still soft during the 30 day period. He stated 'generally' re-finish paint is not baked. He did not mention anything about whether the paint on the bumpers of cars is baked or not. Why would you not believe the advice of someone with a Phd in organic chemistry amongst other things, and who has done R&D for one of the major paint manufacturers? I am sure he is not just making this up, and I imagine it is backed by research etc. Why not go over to the Optimum forum and read the entire post.

David Fermani · 02-06-08, 09:26

Isn't post-painting polishing being done with abrasives/sanding? Unless your a DIY garage painter, pretty much every Body Shop is baking their paint. It's not that I don't believe him(or any one else), it's just that there's alot of mixed views from other industry professionals (including paint manufacturers) that contradict some other views. I still can't tell who's right?

Do you mind posting or PMing the link to this other thread?

brwill2005 · 02-07-08, 07:08

Wax/Sealant no Fresh Paint - Optimum Forum
Excuse the title of the thread, I made a type o.