The Stovebolt Site Forums The Shop Area Paint and Body Shop Frame prep for paint

Wanted to get an opinion on what I am thinking about doing on my 1 ton frame. I was thinking of knocking off the rust with a wire wheel on an angle grinder. Then coating the frame with ospho. I wanted to epoxy prime then paint with chassis paint.

However I'm not sure the ospho and epoxy will play nicely together. I do not want to sandblast the frame for several reasons. After the ospho is dried should I wirebrush it again and then epoxy, or skip the ospho and clean it up with the grinder and then expoy prime? I'm a little unsure of my plan of attack.

The trick to using Ospho and EP is getting it neutralized while it's WET FPOM APPLICATION.
Use it for a week or just over night, but when your done messing with rust and it's sat there dried over days....
PUT MORE ON... let it 'reactivate' the dried and crystallized residu from your last application and then while it's 'wet from application' wash it off with water.

If your metal is in pretty good shape you may just wash it off before it dries the first time...

The more thoroughly you wash it off the better your chances of it not biting you six months after your finished buffing.

I hook up the pressure washer to my hot water tank drain and use a red scotch pad or sand paper to clean it all up and basically do a wet sand paint prep at this stage. Finishing with a soapy wash down and hot rinse
The heat helps things dry faster when I hit it with the shop vac afterwards.
Like any full service Awe-(that hit my)toe salon?

Great stuff. I have the pressure washer. It's in pretty good shape. It's mostly just the typical surface rust. The wire wheel will get the bulk of it. I just want the ospho to get the rust in the nooks, cracks, and crannies. Sounds like the scotch brute behind the washer is a good tip too. Thanks. It's my frame so no buffing on it. But I still want everything to last on it. Thanks!