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Old 08-07-08, 12:18   #9 (permalink)
Accumulator
Practical Perfectionist
 
Accumulator is offline
Join Date: Sep 2002
Location: NE Ohio
Posts: 24,907
Re: polishing after painting-how long to wait?

Quote:
Originally Posted by David Fermani View Post
I'd say it's as hard as it will get after a few days. Even if it isn't baked.It's the solvents that are outgassing for what some say a few months. I've gotten totally different opinions from dozens of painters. Out of the 1000's of vehicles I've seen, I've never seen a single one that had paint failure from trapped solvents from being sealed. Someone should call Mythbusters.
I'm all for somebody doing controlled tests of this stuff with regard to LSPing, but I can state with zero ambiguity that I've experienced the months-long hardening process *with baked paint* first hand on numerous occasions.

Two examples that stick in my mind:

I've had RM brand b/c that was too soft for Meg's #80 for over three weeks (incredible to see such hazing from the initial bite of that mild product!), but was too *hard* for the same #80 a couple of months later. This was the most dramatic example of the lengthy hardening that I've ever encountered.

On the S8 following its deer-incident repairs, I worked on it on-and-off over the course of four months and was able to carefully observe how the paint hardened. During that time, I had to gradually ramp up the aggressiveness of my products/process as stuff that was easy to correct with the PC after a few weeks required the rotary (and aggressive pads/products) a few months later. This was with Spiess Hecker paint. Its hardness in early spring was completely different from its hardness at the end of summer.
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