Primers and prep

[ramdough]

I did a search….. but my question was not found by me. Lots of questions below.

I need to prime some new steel parts. There is mil scale on it and I cannot sand blast.

Do you have advice on prep?

I was planning on Scotch pad on a grinder to knock off critical areas of thick scale. Then Ospho rub down.

Then prime and paint.

I planned on Rustoleum Rusty Metal Primer rolled on, the Behr Marque sprayed over that.

Thoughts?

I have heard of a cheaper POR15 but I don’t know the brand…. Any ideas…. Is it better? I have a lot of area so straight up POR15 is probably too expensive.


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[bprzyw]

Yep, agree, Ospho works great!! Hit it with scotch Brite pad, Ospho, Rustoleum rusty metal primer oil based, then paint! I did the same.

 

[ramdough]

Thanks for the feedback.


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[Captaincarrier]

I use Prep & Etch from Home Cheapo in the paint department.