I feel stupid asking the question but want to make sure I'm assuming correctly.
Just opened the activator for the epoxy primer but label on can is dated three years ago. So I sprayed three coats of the white epoxy on a scrap piece of metal (12"x12") waiting 30 minutes between coats after inducing 35 minutes. It sprayed out great and looked more like paint than primer. For the first 12 hours I could put a thumb print in the primer but by the 24 hour mark it was near impossible. Sprayed the panel in basement at 55 degrees but took upstairs in the house between coats and to finish drying at 68 degrees.
I then wanted to do the finger nail test. I could take my finger nail and dent the epoxy till about the 30 hour mark but it was hard. I then with great pressure was able to scrape a bit off down to bare metal. Was not gummy but I was able to scrap off.
So am I good or not and what am I looking for on the finger nail test exactly.
Have a great day,
Bob
Just opened the activator for the epoxy primer but label on can is dated three years ago. So I sprayed three coats of the white epoxy on a scrap piece of metal (12"x12") waiting 30 minutes between coats after inducing 35 minutes. It sprayed out great and looked more like paint than primer. For the first 12 hours I could put a thumb print in the primer but by the 24 hour mark it was near impossible. Sprayed the panel in basement at 55 degrees but took upstairs in the house between coats and to finish drying at 68 degrees.
I then wanted to do the finger nail test. I could take my finger nail and dent the epoxy till about the 30 hour mark but it was hard. I then with great pressure was able to scrape a bit off down to bare metal. Was not gummy but I was able to scrap off.
So am I good or not and what am I looking for on the finger nail test exactly.
Have a great day,
Bob