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Topic Review (Newest First)
10-22-2012 10:33 AM
tech69 I could be wrong. I'm not right next to them when they do this and most painters I know do follow the tech sheet but I have noticed a lot of them are more secure about sanding as opposed to scuffing. You don't hear anything about denibbing a sealer with say 800 and a little grease and wax remover but it's being done. These painters I speak of are the best of the best in this area and have proven it with their work. Theory of application is important though so don't get me wrong.
10-22-2012 07:15 AM
MARTINSR Henry, just what is so frightening about me saying to follow the tech sheet? There are different paints that you can sand the base, some you can't, some have a 24 hour window others have a 7 day window, what in the world is so wrong for me to tell people to follow the tech sheets?

Brian
10-21-2012 11:58 PM
tech69
Quote:
Originally Posted by MARTINSR View Post
It's wrong, I know guys who have painted wrong for 40 years and "gotten away" with all kinds of crap.

Following the tech sheet is the best way to get something done properly. And for a newbe it is of the UPMOST importance because they don't have the experience to wing it.

You have seem the thread on sanding the base right Henry? http://www.hotrodders.com/forum/inte...on-110339.html

You can skip from about the third page all the way to the last couple as the middle is largely a peeing match.

Brian
well I guess they're painting it wrong all the way to the podium with 1st place trophies. I'm sure there's a good reason why they do what they do but you're the expert here, or at least on-line anyways.
10-21-2012 11:21 PM
MARTINSR It's wrong, I know guys who have painted wrong for 40 years and "gotten away" with all kinds of crap.

Following the tech sheet is the best way to get something done properly. And for a newbe it is of the UPMOST importance because they don't have the experience to wing it.

You have seem the thread on sanding the base right Henry? http://www.hotrodders.com/forum/inte...on-110339.html

You can skip from about the third page all the way to the last couple as the middle is largely a peeing match.

Brian
10-21-2012 09:55 PM
paint dude You will have to re-base after you scuff it, Depending on which paint product you use as to how long you have before you can recoat or clear, As a 30+ year painter you can and will have adhesion problems if left to long before you recoat or clear, better to be safe than sorry especially with the time and expense of redoing it
10-21-2012 09:50 PM
tech69
Quote:
Originally Posted by MARTINSR View Post
You can't really scuff the base and clear over it at all, the clear will magnify the scuffing. If you scuff you MUST apply more base prior to clear.

But FOLLOW THE TECH SHEET! Many bases have warnings IN BOLD PRINT do NOT sand the base! It will clearly say things like "nib" it or "Scuff" it which is NOT "sanding" it flat, that is two totally different things.

Read the tech sheets!

Brian
Our painter knows this. He just waits til he can sand it. Just like they were saying about ecoats... just clean and paint...yeah right! That crap didn't work and that was straight from the tech sheets.
10-21-2012 07:29 PM
wayne gillis
base coat clear coat questtion

My spoiler on my camaro needs to repainted , clear coat needs to be redone
runs and drips , I damaged the spoiler via driveway ! , the painter #@$^ k up
left side of the car , you have too look close , I don't plan on taken it back to him
10-21-2012 10:23 AM
tech69 just saying, guys that are actually painters by trade have done it for over 40 years like that.
10-21-2012 09:45 AM
MARTINSR You can't really scuff the base and clear over it at all, the clear will magnify the scuffing. If you scuff you MUST apply more base prior to clear.

But FOLLOW THE TECH SHEET! Many bases have warnings IN BOLD PRINT do NOT sand the base! It will clearly say things like "nib" it or "Scuff" it which is NOT "sanding" it flat, that is two totally different things.

Read the tech sheets!

Brian
10-21-2012 09:41 AM
tech69 In every shop I worked at the painters do not like scuffing base and clearing over it. They will rather sand the base good, which will lead to break thrus and then lightly re-base, then clear. Just a thought.
10-21-2012 08:22 AM
MARTINSR Or a gray pad of course too, it depends on WHAT you are "scuffing".

Brian
10-21-2012 07:57 AM
302 Z28
Quote:
Originally Posted by wayne gillis View Post
What is scoff sanding ? What grit to use ? thanks in advance
Scuff sanding is just a very light sanding to break the surface. It can be accomplished with a light application of a red Scotch Brite pad.

Vince
10-20-2012 09:55 PM
wayne gillis
base coat clear coat question

What is scoff sanding ? What grit to use ? thanks in advance
10-19-2012 07:51 AM
MARTINSR
Quote:
Originally Posted by paint dude View Post
For sure, the only stupid question is the one you didnt ask. And I would scuff after 24hrs just for precaution, I use Ppg and we have a 24hr window
There is no need to scuff.

Right from the tech sheet........

RECOAT

Allow 5 minutes flash time between coats.

Allow to flash 15-20 minutes before clearcoating.

If not clearcoated in 7 days, scuff sand basecoat and reapply basecoat color before clearcoating.


Brian
10-19-2012 05:27 AM
Old Fool
Quote:
Originally Posted by paint dude View Post
For sure, the only stupid question is the one you didnt ask. And I would scuff after 24hrs just for precaution, I use Ppg and we have a 24hr window
Scuff base coat ?
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