• Multipurpose, one primer for all approved porous and non-porous substrates
• Improves adhesion on porous substrates, plus peel & stick tiles and membranes
• Bonds to a variety of substrates, including gypsum, OSB, metal
• Easy to apply with brush, roller or spray
• Enviro-Friendly –solvent-free and LEED® compliant; VOC < 1 g/L, SCAQMD Rule 1168
• Drying time: 30-60 min

Roberts 1331 Multipurpose Primer is a high performing acrylic latex primer designed to seal porous surfaces, while enhancing and improving the bond performance of adhesives, and peel & stick tiles and membranes. ROBERTS 1331 can be used over a variety of substrates, including cementitious, gypsum underlayments, adhesive residue, exterior decks, and well bonded epoxy coatings. May also be used to promote bond over cold-rolled steel substrates.

Item number	Unit size
1331-5	5 Gallon
1331-1	1 Gallon

Coverage – Up to 400 ft per gallon