Por question

[Twistygit]

Gonna get my chassis blasted and gonna cover with por15, but will it be okay to leave it bare while I weld it then paint?
Thanks Graeme

[m4tti]

If you have blasted it then don't use "por". It stands for paint over rust. You will have no rust. Use decent epoxy mastic, or two pack paint as a top coat.

Edited by m4tti on Sunday 12th October 00:16

[Colin RedGriff]

You can use POR on bare metal if you prep it with Metal Ready first

[m4tti]

Of course, but if you've gone to the trouble of blasting the chassis there are better methods/options out there.

[Dollyman1850]

Twistygit said:

Gonna get my chassis blasted and gonna cover with por15, but will it be okay to leave it bare while I weld it then paint?
Thanks Graeme

NO.
Immediately after blasting you should put at the very least a weldable primer coat on the chassis. Oxidation occurs on a freshly blasted surface within 20 mins of blasting when left in an open atmosphere.

N.