if anybody is contimplating about primer types, go with a catalyzed primer. (QUOTE)

As the other painters here will tell you, the best thing about these two-part primers is that they are an extremely stable "barrier coat". The layer of primer is extremely difficult for any solvent to penetrate through. Back in the "old days" you might have it look good after priming, but as you continue to stack layers, suddenly the solvents get into something under the primer, and it starts wrinkling! Another thing that used to happen is that after the paint ages for a few days or weeks, solvents underneath escape leaving old sand scratches, or the "ghost" of old damage or repairs showing! Not now!

BTW, I use a less expensive primer made by MarHyde, a company that produces industrial products. After about 10 years I can report NO problems. If you are interested, it is called "Ultimate" primer. I use 2-6 coats, allow overnight dry, guide coat and block it flat with 360, then I can do whatever I want on top without worry.