patching up welds

[duke]

if after a steel frame is p/c'd a weld has to be made, can we p/c just the welded area by using i.r. lamp? will it blend in with the other p/c if it has not long been done?
or do we have to redo the whole frame?

cheers

[tomg552001]

You would most likely need to redo the whole thing unless it was not fully cured the first time, than it should blend in.

[Fireblade]

I done a patch before, and it works best, at least for me, when it is in a "hidden" area, lots of curves etc...To help belnd it in. I did it with black on a quad frame, I sanded the area down real smooth like you would feathering paint in on a car. Taped off the area, but taped it to other "hidden" areas to help hide anything. Then sprayed and cured. Like I said the color was black, so I wet sanded it a bit to get rid of the tape lines, buffed with a clearcoat polish, then it was hardly noticable. Good luck

[tomg552001]

Or you can go that route and buff, which i failed to mention...but me being lazy would just recoat the whole darn thing

[duke]

recoating the whole frame is not a problem.
the problem is getting the existing off. boo, hiss.

[tomg552001]

You dont have too....can just scuff it up and recoat, providing you dont have a 1/2 thick coating to start with..

[duke]

hmmmmm dxxx head duke.
cheers

[non-stick]

Duke... you can "patch" in a spot as long as you're not trying for a show-quality triple-coat finish. You have the option of an IR spot cure, oven type cure, or scuff the whole thing down and put a coat on it entirely, re-bake and all will be fine. It's all dependant upon your needs... Russ

[DALE]

If it's a small patch i've gotten away with brushing the powder on with a tiny brush and using a heat gun to cure it. Actually I was surprised at the results but it takes lots of patience and a soft touch.
Also it is accepted throughout the industry to use tough up paint for hook marks and tiny blemishes. I don't like this approach but it is an option.

[duke]

thanks guys, i guess if you have a part that needs to be coated all over, you have to have marks someplace from ground wire etc;
i think i read after curing, you can spray marks while item is still hot & place back in oven & powder will flow out. is this correct?
cheers