Rusting powdercoat

[scsmith]

Originally Posted by JonJay

You can remove powder coating like any other paint. Mechanically, or with paint stripper.
For priming, you can use whatever primer of your choice. I wanted a different color for my roll bar and canopy frame and just scuffed it up and primed with P60G because that?s what I had hanging around. Most consider P60G for aluminum but it works great on steel although I prefer epoxy on bare metal.

For the stick, just mask off and use a commercial paint stripper. It comes off easily.

I have had zero success with paint strippers on powder coat. I tried several brands.

[RV7ForMe]

Personally I have been giving all the powder coat parts a light scuff with scotch Brite and shoot 2k epoxy primer over it... anything wrong with that? I make a point to use a different color scotch Brite on all steel parts to ensure I never use them on aluminum parts...

[JonJay]

Originally Posted by scsmith

I have had zero success with paint strippers on powder coat. I tried several brands.

Not sure what to tell you other than it has always worked well for me. Different brands as well. Go figure.

[sblack]

Originally Posted by AlexPeterson

"Honey, really, it won't hurt the bathtub to fill it full of acid, just don't step in"...

you might want to watch Breaking Bad before you try that. There is this one scene .....


You can also soften up powder coat with a plumbers torch. There is a video somewhere - perhaps EAA hints for homebuilders - where somebody does this on a part that has to be welded.

[PaulvS]

Thanks everyone for the suggestions, not sure about hydrochloric acid in the bath though...

I tried some paint stripper and it works very well to the powdercoat off quickly and easily, with much less effort than sanding. The coating scraped off after being covered with the gel for about 3 minutes. The brand I tried is Poly Paint Stripper from the hardware store and the active ingredient is Dichloromethane.