@jeffnc My primers tend to be all INSUL-X products: STIX, Aqua Lock, Prime All, Prime Lock Oil Based (Not so much but it has its place). INSUL-X does only primers and I have never been disappointed. IMHO, they make the best primers. None are PVA. At one time they did industrial primers but I don't see those any more. They had one that made me laugh years ago, it said something like "will withstand 2000 degree temperature, only comes in black.) I thought, at that temperature is one really concerned about the color! Maybe BM dropped those when they purchased INSUL-X.