Frame coating while in the mockup stage

[14U2NV]

I am getting ready the start the frame for my Blazer project. I plan to convert a 4X4 chassis to 2wd. I am going with a Dropmember C4 static drop (coilover) suspension in the front and a triangulated 4 link in the rear with c notch and coilovers. So, I will need to do alot of welding on the frame. For now, I am going to have to do most of this work outside. The plan is to sandblast before any work starts. What should I coat the chassis with while I'm in this process? I plan to take my time, so it could be in mockup for 6 month to a year (and maybe longer if life happens). After the mockup is done, I will go to a chassis paint or POR15. I don't mind having to blast again after mockup as I have my own blasting setup.

Chad

[LUV2XCLR8]

I didn't blast and powder coat mine till I was done messing with the frame.

[GruntMoanCough]

I think a coat of weld thru primer (zinc) would do.
Good luck with your project!

[14U2NV]

Yeah, I def wouldn't put the final finsh on it until I was certain I was done welding and putting holes in it. But due to the fact it will be out in the weather for an extended time, I just wanted to make sure I did not harm the frame any.

Does weldable primer allow moisture through like regular primer does?

Chad

[GruntMoanCough]

Originally Posted by 14U2NV

Does weldable primer allow moisture through like regular primer does?
Chad

It would protect by forming a coat of zinc oxide over the steel. I have a '53 pickup cab here that I coated the firewall with weld thru primer about a year ago and it sat outside in rainy weather for a while, still no rust forming.

[14U2NV]

Cool, I'll be looking for some zinc primer soon. Thanks for the info.

Chad