What's the best way to touch-up powder coating?

I just took a hunk out of the powder coating on my frame (about the size of a quarter) and was wondering what is the best way to touch it up? The chip is still attached, so I was thinking I might even be able to glue it somehow?? I could probably just touch it up with paint but I'd like to see if there's a better way specifically for powder coating. Any ideas??

I scratched the only square inch that I didn't have protected when I put the engine back in the frame.
:blush:
Murphy's Law at its finest...

that sucks,that why i like to lay motor on its side and lay frame down on top of it to bolt it in.i always take the exhuast studs out also:(

hey man!

i'd bet that you could call your p/c guy and ask if he'll re-coat that section.

it shouldn't have chipped easily, so they might just fix it for free.

you *might* try putting the piece back in place and hitting it with a heat gun to see if it will re-cure.

not sure if that will work, and you might want to check with the coater before doing that, as it will probably mess things up worse...

--r

Post edited by: solomrus, at: 2007/03/05 17:46

im not sure how you could just repowder coat part of it,its sprayed on as a powder and heating it turns it into the finish:blink:

I haven't found any good answers for this yet. It seems that most experts recommend spray paint for touch ups. It is suggested that a part be taken to an auto paint store to have a can made that matches. I haven't been able to find anything on touching up with powder, but I like that idea. I guess I'll probably end up pulling off the "scab" and touching it up with regular paint.

Just had a thought... (hey, that's at least two today!)

What if I put on the paint pretty heavy with a brush and stuck the scab back on? Do you think the paint would hold it on like glue?

Nah, probably not. :S

Using paint to touch up will be tough because the powder is so thick. You will have to either fill in the chip and then paint or try to paint.. sand..paint..sand until the paint in built up.

I would super glue the chunck on then fill the crack with paint. yuo can polish it smooth when dry.
Mark

kawtoy wrote:

Using paint to touch up will be tough because the powder is so thick. You will have to either fill in the chip and then paint or try to paint.. sand..paint..sand until the paint in built up.

Very good point. I'll probably try to brush on the layers so it will be a bit thicker.

Post edited by: 79MKII, at: 2007/03/10 23:53

Mark Wing wrote:

I would super glue the chunck on then fill the crack with paint. yuo can polish it smooth when dry.
Mark

Funny you should say that...my brother suggested the exact same thing. I guess I'll give that a try and see if the super glue holds. If not, I'll peel the scab and start carefully applying layers of touch up paint.

Thanks for the tips...Keep 'em coming!

i used to work in powder coating line when i was a kid,
there is no way to do just part of the frame it would have to be striped sanded cleaned and redone.

but as a thought get some color match paint same as your frame mix it with some 2 part epoxy and re attach chip blending in seam with the epoxy this would be your easiest fix.

How long have you had the 'coating' job done? Quality P/C doesn't pop off like that, it's why you pay for P/C instead of regular paint. That being said, I think kawtoy gave you the best advice...p/c is thick, so several layers and sanding between layers, will probably net you the results you're hoping for. My thoughts are that it's going to take some 'work' on your part to get the results that will satisfy you.

Again, seems to me that there was an oversite in prepping your frame from the coaters. That portion of your frame was 'probably' not etched (sanded, or media blasted) in that spot and the powder didn't have anything to adhere to when it got hot.

Anyway, good luck.
-KR

Bad Kaw wrote:

Again, seems to me that there was an oversite in prepping your frame from the coaters. That portion of your frame was 'probably' not etched (sanded, or media blasted) in that spot and the powder didn't have anything to adhere to when it got hot. -KR

Seems that way to me as well - lousy prep.

If at all possible/feasible, shaming the original coater into doing a decent job in the first place is your best fix.

One thing I'd avoid attempting to re-attach the big-honkin' flake that fell off would be the super glue. Chemically, it's pretty temporary stuff - seems to be susceptible to oxidation/UV issues. It might work okay for a little while, but make a bigger mess when it comes apart - the residues it leaves behind are positively fugly.

I'd stick with Kano's epoxy idea.