I 've been using pourasol; for a year+ now. Good service ,great price and the company stands behind their products. That said, it bubbles when heated in a micro wave - it don't care how you do it or try it,it bubbles.
Tried some Chemionic samples ths past week( I used Chemionics plastisol for over a year when Bear carried it and loved it)
Absolutely no bubbles when heated in a microwave-again,again,again and again - what a pleasant surprise! I hope it hasn't gotten too pricey