Products / Black Jack Eterna-Kote Stain Block Roof Primer

Black Jack Eterna-Kote Stain Block Primer (product 5587) is a water-based, light gray stain-blocking base coat for asphalt roofing surfaces, applied before Black Jack Eterna-Kote silicone or Black Jack white elastomeric roof coatings. Its technical data sheet gives a coverage of approximately 75 to 90 square feet per gallon and carries a 12-month limited warranty against material defects. It is sold in a 5-gallon pail.