Surface Rust?

[weldor2005]

I am having an issue getting a good coat of paint on the butterfly chair that I just made my wife. I hit the chair with a DA and went over the surface to clean the dust off. Now, thick or thin it seems that there is some sort of rust coming up through the paint.

I didn't remove all the mill scale, but again, I DA'd it to scuff it. I am using a Glidden Exterior paint. I have hand brushed it on, and it only shows up in some areas and not others.

Help on this would be much appreciated.

[mdwalker]

Not sure what is causing the problem you are having but I can tell you that 90% of a good paint job is surface prep. You probably won't get a good, long lasting paint job if you have mill scale. You might could clean it with muratic acid or ideally have it sandblasted.

Danny

[tnbndr]

Sandblasting would be best and then use a Rustoleum primer. I use Rustoleum primer for rusted metal even on metal that I think is rust free.

[weldor2005]

Well it's looking like I might be paying out for this one. To get it stripped and done right the second time...

Thanks for the comments.