dse subframe powder coat?

[jazz]

I have a lot of scratches and hydraulic press marks from the forming process on my new DSE subframe, can bondo be used under powder coat?

Thanks Nate

[tonyvol]

Bondo will bubble from the heat. I've heard of people using All Metal, but I don't know what kind of results they are getting. Maybe someone will chime in that on what they have successfully used.

[mikey]

How deep are the marks? most powder coaters want to blast everything to insure that the part is free of contamination. So it might come out or be pretty much hidden when they do that

[PRO TC]

Can you smooth the scratches with a die grinder? yes all metal will work. We have sprayed over small jb weld spots but i would not use that. id smooth with a die grinder if was mine.

[jazz]

The only reason I was trying to stay away from grinder, was the waviness of the die grinder after paint. Scratches and forming marks are too deep to not be addressed. I would also like to fill the Z bar holes, so I’ll try and sand smooth the other imperfections at the same time. Thanks for the help Nate

[andrewb70]

Are you building a car or making jewelry?

Andrew

[jazz]

Andrew, although a smart ass answer, you are probably correct

[srh3trinity]

Where are the marks? I had mine powdercoated to protect it. When everything is assembled you won't see much of the sub.

[andrewb70]

Andrew, although a smart ass answer, you are probably correct

It was a bit of a smart ass answer, but seriously, as the poster above said, once everything is assembled, the subframe is barely seen. I know it is easy to see every imperfection when the subframe is sitting there, but once it is in the vehicle, you'll never see it. Besides, powder coating is fairly tick and it flows nicely over sanding marks. It was also posted above that most powder coaters will want to sand blast the subframe. This will further hide any imperfections that might be there. In other words, there is no need to drive yourself crazy with bondo and other nonsense.

Andrew

[PRO TC]

what i meant was use a small air grinder with a brown roloc or use a green sanding discs first then the brown and smooth the scratches. I do this on alum rim gouges all the time before we sand blast and powder coat them and most times when done you cant even tell where the problem was

[JTs67]

Could also use a flap disc on a 4.5 inch grinder to take down the larger areas and then finish with the brown or red rolocs as mentioned above.

[rjsjea]

If you want it to look like jewelry (as stated above) why not just metal finish it, skim it with filler, prime, paint and clear it?