Bicycle Mechanics - Clearcoating question, please help!

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bhima
11-14-07, 03:21 PM
I will be getting my 85 benotto frame back from the powdercoater. I bought the decals off ebay for what feels like a bajillion dollars (40 bucks). My question is this: what type of rattlecan clearcoat should I use over my decals? Anyone have any experience clearcoating with rattlecans over decals and a powdercoat? I've been looking at Rustoleum's clear coat but i cant find any info about using it on a powdercoat or what it could do to decals. Any feedback would be great, thanks!


rmfnla
11-14-07, 03:31 PM
I would ask the powdercoaters; odds are good they have some experience with clearcoating their finished product.

As for the decals, I have used both polyurethane and exopy-based enamel with good results.

Dr.Deltron
11-14-07, 03:36 PM
Having no recent rattle can experience, I can't offer much there...

But if you have a way to spray quality automotive clear...

Start by cleaning the frame thoroughly with wax & grease remover. DO NOT sand or scuff!

Apply decals.

Spray 2-3 coats of PPG 2042 clear and let it set for a week.

Now it should be hard enough to polish easily.

Wax it, build it, ride it, ENJOY! :D

Rattle cans only huhn? Weeell...

If the powdercoat is metallic or pearl color, your best bet is the automotive clear route.

If it's a solid color, you can carefully scuff the surface with fine Scothbrite pads.
I would then spray a coat or 2 of the rattle-can clear and let it sit for the 72 hours listed on the can.

Scuff again lightly and then apply decals.

Clear the whole thing with 3-4 coats to seal in the decals. That'll also give you enough film build to polish later. And I would wait at least a month before trying to polish. If you try to polish too soon, you'll likely just make it worse.


WNG
11-14-07, 03:48 PM
Can powdercoat be layered on top of fresh powdercoat?
You should check with your coater, since clear powdercoat exists.

bhima
11-14-07, 03:49 PM
Hey thanks to both of you!

How would you recommend polishing it? Is there a specific type of polishing agent? or just get an soft towel and buff away?

Also, this is the powdercoat color I'm having done, i think its a metallic:

http://www.cardinalpaint.com/products/productcat.php?pcid=2&cctid=12


T353-YL02
Brass 30% Gloss* (http://www.cardinalpaint.com/uploads/colorcharts/pdfs/YL02-T353%20TDS.pdf)http://www.cardinalpaint.com/a_img/1.gif
If rattle canning it would be a bad idea based on this type of powder, what could I use to clear coat it? What brands are recommended and how would I apply it? Thank you so much for your help. Sorry I'm such a noob at this.

bhima
11-14-07, 03:50 PM
You can't clearcoat with a powder clearcoat if you have decals... because it has to go right back into the oven =o

Dr.Deltron
11-15-07, 09:13 AM
You can't clearcoat with a powder clearcoat if you have decals... because it has to go right back into the oven =o

TRUE, unless you have powdercoat compatible decals. ;)

Check with Gary at www.sssink.com to see if he has what you're looking for.

Otherwise.....have the clear powdercoat done over the powdercoat color theeeen,

Scuff, clean, apply decals, rattle-can clear.