I have heard good things about SPI. Next paint project I will check them out.
The two year old epoxy primer mixed up easier than the feather fill primer I just bought. I guess they sell the old stock to the rookies.
I followed their instructions (8oz paint 1/8oz catalyst) with the catalyst and almost lost my primer gun because it started to harden too fast.
Next batch I only used 10 drops of catalyst. I'm learning the hard way.
Almost finished with the tractor
Then it's back to the truck after a good shop cleaning.