Hey guys, I need some help with VHT paint and curing.
I have never used VHT paints before so my experience with the products are limited.
I've been painting some glass-blastered aluminium parts. I cleaned them with acetone and "tak-rag" and wore plastic gloves at all time.
As a primer I used the "Flame proof white, SP118" that's been recommended. First one thin layer, waited 10 minutes, then another thin layer, then waited 20 minutes and added the last wet layer. I hang them to dry for 7 days. After the 7 days I "dusted" them of with clean compressed air, then painted with Caliper paint SP734 or SP735, in same method as before.
I then waited for about 8 hours or more and cured them finally in the oven for 1 hour at 100C. After this I left them for 4-7 days. And while the paint is harder it's not that very hard, I can with ease make a scar.
Is this the expected result ? As a solution I tried to cure them harder at 30 min at 200C because they are supposed to withstand up to 400C. But after 15 minutes at 200C the paint began to bubble up and doesn't look good at all.
Did I do anything wrong ? Since the pieces cant withstand half the temperature they are suposed to The parts after the 200C curing
Or is this the quality that I should expect ?
Kindly regards
Viktor