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.
v8packard@reddit
SPI owner Barry instructions on using epoxy in a cold space
The owner of SPI advises using a torpedo heater, getting the metal and space up to 75 degrees, shutting off the heater then applying the epoxy. After a 30 minute flash he suggests running the heater for 24 hours to keep the area at 70 degrees.