Hey Guys,
I have been using the universal clear coat over some artwork.
The artwork is airbrushed using acrylic paint and then finished with the clear to protect it and give it a glass finish.
I have been having an issue with bubbles appearing at the surface about an hour after the last coat, tried everything I can think but still having the issue. Sometimes it comes out great, other times I get the issue. (see photo) Looks worse in the photo but obviously that's not supposed to happen.
I am using a sata 5000 rp 1.4
Universal clear with slow activator
I have a 1 micron and 0.1 micron moisture trap followed by a desiccant dryer. Even a mini desiccant dryer before the gun.
I am spraying at 25psi (90 at the wall), it lays down smooth, I try and do nice thin coats, never runs.
I have tried turning fan off between coats as suspected it might be drying top layer too fast.
Really can't figure out why sometimes this happens because I have been taking care to replicate same technique.
Any suggestions would be greatly appreciated.
I have been using the universal clear coat over some artwork.
The artwork is airbrushed using acrylic paint and then finished with the clear to protect it and give it a glass finish.
I have been having an issue with bubbles appearing at the surface about an hour after the last coat, tried everything I can think but still having the issue. Sometimes it comes out great, other times I get the issue. (see photo) Looks worse in the photo but obviously that's not supposed to happen.
I am using a sata 5000 rp 1.4
Universal clear with slow activator
I have a 1 micron and 0.1 micron moisture trap followed by a desiccant dryer. Even a mini desiccant dryer before the gun.
I am spraying at 25psi (90 at the wall), it lays down smooth, I try and do nice thin coats, never runs.
I have tried turning fan off between coats as suspected it might be drying top layer too fast.
Really can't figure out why sometimes this happens because I have been taking care to replicate same technique.
Any suggestions would be greatly appreciated.