Do I NEED to sand clear coat?

[big stinkie]

If I squirt PPG 2082 Stratoclear clearcoat on a piece and let it set for a week or so, can I shoot more base coat or clear on top just the way it is, or should I rough it up a bit so the next layer has more to bite on?

I've always sanded it, but today I got to thinking about it and thought I'd toss it out to you guys and see what you say.

 

[flamethrower]

I wouldn't risk blowing the whole job by not scuffing the clear. I'd use a maroon scotch brite pad (wet) and just scuff it until the shine is gone. Really, really famous? Or just relatively famous??? Have a grateful day!

 

[ezrider]

You can sand it with 600 grit to really flatten it out. this works alittle nicer and alot faster especially if your gonna put art work on top of the clear than reclear.

 

[duracolors]

It has been my experience that if you don't sand or scuff the base will wrinkle up. You might get away with re-clearing but remember to apply a tack coat first. Hope this helps.

 

[big stinkie]

Figured as much. I always scuff it up, but it just dawned on me that 'maybe' it wasn't necessary and would therefore save a few minutes here and there. But as you guys said, it isn't worth the risk.

Thanks again.

PS: I stole the line about being famous from Sam Malone on "Cheers." He was hitting on a fine looking lady. She didn't seem interested so he added, "Hey there, not many people know it, but I'm a very famous baseball player." That line just struck me funny.

 

[rex]

THere is an open window that you can go right back over it with clear but I'm not sure about the base.A week is too long though,usually you have 24-72hrs.Even so it makes me nervous and I either sand it or grey wet Scotchbrite it.Use the 600 after a week and that's also a very safe timeframe to avoid shrinkage later on when it sees a good deal of sun.