Waxed Suede even!!

What about Dupont's Hot Hues Hot Rod Black which is suppose to be a semi gloss black with gloss black hockey stripe. That would definitley give it that raw look!

Mike

Hi guys, I know this is an old topic, but I'm new to the forum & just came across it.Hopefully I can explain what has gone on here & prevent anyone else having similar problems.
Once a car has been painted/lacquered it takes some time for the solvents in the thinners used to "outgas".The solvents evaporate through the layers of paint to the surface & disperse into the atmosphere. (that's why a fresh paintjob still "smells" even after a few weeks, it's the solvents evaporating). Now, it seems the guy lacquered the car (3 coats) & no doubt would have baked it,colour sanded it & re lacquered it again (another two coats) prior to final colour sanding.
What has occured here is that although the car has been baked in the low bake oven & to all intents & purposes seems hard to the touch, the paint is still "out gassing" & will continue to do so for a few weeks.The solvents from the first paintjob won't have fully outgassed & subsequently they've been "trapped" between the first & second paintjobs. Once trapped they will show up as small white dots in the paint as you try to colour sand.
Had the painter applied all 5 clearcoats in one hit, it's more than likely this problem wouldn't have occured. However,assuming it's a 2K lacquer that is used, any more than 5 coats of lacquer used, will start to create it's own problems. Too high a build thickness of paint/lacquer will cause the same problems. Because 2K paints are dried chemically (catalyst used) you'll find that the surface of the paint fully cures & "traps" the solvents in the paint underneath it, as the solvents cannot evaporate through a high/thick build of paint quickly enough to reach the surface before the surface cures fully.Another problem you'll come across with too thick a paint is that as it "cures"it shrinks somewhat, & can in certain circumstances crack or pull out of tight edges.
If you want to add a high build of paint/lacquer to your car, then paint it & leave it for a good few weeks before recoating it again, in doing this you'll even be able to colour sand through the second lacquer job to the first & still be able to cut & polish without seeing the "edge" between the two paint jobs. HTH..........Nigel

ps you guessed,..... I've had my own custom paintshop for 26 years & have taught in auto colleges, oh yeah & I live in Britain & I'm currently putting together a '69 Z28. :)

Thanks for the info! The only time he did the clear in 2 sessions was the first time. All the others were 5 coats in succession. But re-doing this thing so many times in such a short period, even with baking in a booth was going to cause issues anyway.


I'm just now back to the point of re-painting it myself. All the mockup work has been done.

Jody

Are you really using lacquer Jody?

EvilZ, do you use lacquer?

No, we haven't been able to get lacquer here for many years. I am using Sikkens on the new paint job, this last effort was Dupont.

Jody

Best of luck with the new paintjob. Sometimes it really is best to let a multi- layer paintjob airdry without baking. People think that a baked finish is the be all & end all, but the reality is that bake ovens are really only best for volume throughput in the bodyshop. Even when baked, it's really only the surface that is fully cured, it's a misconception to think it's through hardened.Look forward to seeing the finished car.

if you or any of the other Lateral-g members want advice about paint or bodywork issues I'd be more than happy to help. :thumbsup:

Hi, I think the translation between Britain & America got a bit lost there. Over here we call clear "lacquer". Hope that clears up the confusion.

Jody, we use a lot of Sikkens over here, is it Autocryl you use?

I get ya, :thumbsup: .

Great to have you here. Paintwork can be very scary and there's a lot of misinformation floating around. Anyone who's painted their own car knows you guys earn your money. I've done 4 of mine and I do get a lot of satisfaction out of doing it myself, but I do dread all the work!

This is my first try with Sikkens. I'll have to go look at the can, not sure what it is! I normally use PPG DBU/DBC and once use Spies-Hecker. Also tried Transtar which did not impress me.

Jody