Products / Black Jack Dyno-White Roof Cement

Black Jack Dyno-White (product 5228) is a water-based, fiber-reinforced white roof patch for splits, cracks and holes up to 1 inch wide, used with seam and repair fabric and topcoated with a reflective roof coating. Its technical data sheet gives a coverage of approximately 25 square feet per gallon and a minimum application temperature of 65 degrees F. It is sold in a 1-gallon pail, and the data sheet carries a 12-month limited warranty against material defects.