I'm doing a sign for an auto body shop and they'd like to shoot a clear coat on it to achieve greater longevity. Do you think it will last longer? Will it prevent lettering colors fading? Do I need to use the same catalyst in the 1 shot that they use in their clear? Should I just letter the sign with some 1 shot hardener in the color?
Posted by Gerald Barlow (Member # 3477) on :
Yes it will make it last longer. I have a body shop sign in Central Valley that is over 20 years old and looks new. One shot and catalyst (generic...not One SHot cat). If you used House of Color you would not need any catalyst. Easy, just don't eat the sign.
Posted by Dave Sherby (Member # 698) on :
I agree with Gerald. I can attest to the longevity of clear coat but the signs I did with it I also used automotive paint so the sign colors are lasting just like a car's colors last.
Posted by Chuck Peterson (Member # 70) on :
You could have them shoot a 12" square test piece to be sure the paints are compatible. If they think it would last longer I would let them decide that.
Posted by Rick Sacks (Member # 379) on :
Would I need to use the catalyst they put in their clear in my enamel, or could I use 1 Shot hardener?
Posted by Gerald Barlow (Member # 3477) on :
I've used both (either) with good success. Just a few drops. Tough to keep on hand as it goes bad in a month in the can.
Posted by Alicia B. Jennings (Member # 1272) on :
I would use the same Catalyst the body shop uses in their clear. Although, the 1_Shot cattle, Ha Ha, catalyst might work, I don't think it's as "Hot" as regular automotive catalyst. Besides, after all that work, you don't want to get the call. AND, big and, tell them to let it cure for about, at least 1 week. 2 weeks would be even better. Oh,are you painting the background or are they painting the background?
Posted by Rick Sacks (Member # 379) on :
I'm painting the background. I can get some of their hot stuff and do some experimenting. They don't need to use that water based system, VOC regs are not to that level here
[ February 19, 2023, 08:28 AM: Message edited by: Rick Sacks ]
Posted by Bill Diaz (Member # 2549) on :
Yes on their catalyst, Rick. We had body shops clear over our work on motorcycles without our knowledge and the ones that ate the 1 shot were the ones we did without catalysts. This was in the 90s before we switched to HOK. Some body shoppers told me they used an intercoat clear first. I’ve got murals painted with acrylic water based house paint that were cleared with automotive paints. The results were good. Sometimes with signs facing south that were painted with 1 Shot - the clear chipped off after a dozen years and the 1 Shot didn’t chip off and kept going. That’s fascinating to me. Good luck
Posted by bruce ward (Member # 1289) on :
Ive clearcoated over one shot with no catylst but always used automtive reducers in my one shot. When I clearcoated I did a light coat and let it sit and then come back next day with thicker coat of clear. no wrinkle no burn. Ised PPG 2021 high solids clear
Posted by John Arnott (Member # 215) on :
Yes you can clear coat...but....must be built up slowly just like Bruce Ward says....and yes it does make it last much longer. I've done a lot of this without hardener in the 1 shot....just have to sneak up on it until you can lay down a full wet coat.
Posted by Kevin W. Betz (Member # 4133) on :
I heard OneShot will be discontinued ?
Posted by Alicia B. Jennings (Member # 1272) on :
Are you writing about 1-Shot clear coat or the full line of paint?
Posted by bruce ward (Member # 1289) on :
hopefully all of their crappy paint, their clearcoat was the absolute worst!
