PPG SEAL GRIP ACRYLIC UNIVERSAL PRIMER/SEALER Our most popular whole-house primer. Great for all types of projects, inside and out.PPG SEAL GRIP ALKYD UNIVERSAL PRIMER/SEALER This universal, stain-blocking alkyd primer is excellent for bleeding woods and can be topcoated in as little as 4 hours.ACRI-SHIELD ACRYLIC BONDING PRIMER offers excellent adhesion to old, chalky surfaces and resists tannin bleeding and nail head rusting. BLANKIT INTERIOR ACRYLIC PRIMER/FINISH This high-hiding primer/finish can be used as a stain-blocking primer or as a smooth finish coat.ACRI-PRO 100 INTERIOR /EXTERIOR ACRYLIC PRIMER This fast-drying interior/exterior primer can be used on a variety of surfaces over alkyd or latex paints.