Posted by Jeff in San Diego on Wednesday, March 30, 2005 at 1:29PM :
In Reply to: POR-15 vs. PPG Urethane posted by Brian in San Mateo, CA on Tuesday, March 29, 2005 at 11:09PM :
I used POR-15 on several outdoor projects and found that it fades and starts to chalk off after two years. It breaks down in sunlight. I think the power wagon frame rails behind the front bumpers and winch would oxidize and fade after just a couple years. Probably the rear frame rail where the pintle hook attaches too.
I would paint with PPG, but if you have money to burn, you could sandblast, have it sprayed with a hot zinc coating and then powder coat over that.
Here is a link that explains more about POR-15. Look at step 4 of the application process.