Bubbles and craters in polyurethane
I use a vacuum pot to pull the bubbles out prior to using 2 part, you may need to sand most of the material off and add another coat. Most bubbles especially on a warm day do not disipate and many that have Not worked with 2 part over brush, when I first used 2 part I had the same problem. I sanded it back down then used a cheap vacuum sealer to pull the bubbles out. After that I poured the mix on and was careful not to brush hard and when it starts getting stiff (setting up) left it and I have found this method to be the best. Using mineral spirits with gloves and a rag helps but I could see voids if not totally clean, tough to do.