In regards to ETEX. This is a thinner top coat. It wont yellow.
2 properties that I will share as I did a long time ago. I was given alot of insight by Richoc and he put Carolina Chip onto it as well.
They say Co2 is what causes the bubbles to release.
Co2 will release the bubbles however the problem is deeper.
In order to for a liquid to release airbubbles, the bubbles have to be able to rise to the surface. If you have a substance so thick that they bubbles cant rise, the bubbles wont be released.
People have said that heat does help. In my opinion you are dead wrong. Heat will thin Etex to the point that it will run like water. Have you ever seen an air bubble in water? It rises to the surface where it will release.
I would never use a hairdryer...there is a intake and exhaust... whatever is sucked in, will come out. That will be blown onto your fresh sticky epoxy. No way on the hairdryer.
JMO
Mike