Epoxy priming weld seams without climate control

Posted by JolleeRoger@reddit | projectcar | View on Reddit | 1 comments

Hi all, I’ve tried to read as much as I could on this topic, but most responses seem to be from SPI forum members who have the space and spray equipment to properly spray and cure epoxy primer.

I’m planning some major surgery on a truck cab, mainly inner/outer rocker panels and cab corners, but I can’t figure out how to treat the bare metal areas that were stripped for plug welding. The consensus seems to be epoxy primer, but my garage is not climate controlled. Also, I’m in the upper Midwest, so it won’t be consistently 65F+ until July, and even then there is no guarantee we will have a string of 65F days/nights.

My shop is only 12’x22’x9’, so I’ve considered running two diesel heaters in tandem or a kerosene torpedo heater to keep the panels up to temp for epoxy.

For reference, my plan was to use Spraymax 2K epoxy primer in aerosol cans to sand/prime rust/bare metal.

If I’m able to keep panel temp at 70F+ for 24hrs, say babysitting a kerosene heater, is that enough time to let the epoxy primer cure? Or does it take several days at temp?

Is it just time to mothball my project until I have a climate controlled space?

Being in the situation I’m in, I would normally pay a shop to do the work right, but nobody does rust repair in this area (understandably).

Would be nice to hear stories from others who were in a similar bind.