My last article on the Stain Blocker Primers – Benjamin Moore Fresh Start or Vista Paint PrimeZall gave me the opportunity to test the sanding characteristics of the two products. The temperature high was 72 degrees with a low of 55, giving over 18 hours of cure time (specifications 3 hour re-coat time) with Benjamin Moore Fresh Start 023 primer. We sanded the cabinet doors, the coating had a tack feel as if it was not fully tack free as it also gummed up my sand paper. After reapplying Vista Paints PrimeZall with temperatures in the low 70’s, we gave PrimeZall a hour of cure time (specifications 40 minute re-coat time). The surface seemed to be completely tack free as we started Re-sanding the doors. My 1st impression was how easily the sanding PrimZall was comparing to Fresh Start, it powdered up like those old oil base primers we once knew. Bellow are the pictures of the sand paper used .
Fresh Start 023 – We sanded after 18 hours of cure time.
PrimeZall – Sanded after 1 hour of cure time 
I look forward to trying the new and improved 046 Fresh Start Superior primer. It claims to have addressed the stain blocking capability with better sanding results