Prime Lock Plus PS-8000Details Available Colors: White Sheen (or Gloss): Primer Cleanup: Solvent Resin Type: Alkyd Recommended Use: Interior, Exterior MPI Rating: VOC Level: 337. 2 Features Prime Lock Plus is a fast drying alkyd resin coating that primes and seals plaster, wood, drywall, and previously painted or varnished surfaces. It ensures the paint top coat has consistent sheen and appearance (excellent enamel holdout), seals even the toughest stains without raising