A premium compound for sealing roof leaks on wet surfaces. Made of a heavy-bodies asphalt, it patches holes and cracks even in a driving rain or under water, and is so versatile it may be used whether the weather is wet, dry, hot, or cold. This roof cement is especially easy-to-spread in cold temperatures. Usage: To repair holes, cracks, and splits on composition, mineral surface cap sheet, asphalt coated, SBS modified, metal, and masonry roofs. To seal leaks and openings around flashings, chimneys, vents, skylights, joints in metal edging, gutters, etc. Color: Black.WARNING: This product can expose you to chemicals including polycyclic aromatic compounds (possibly present in asphalt in trace amounts) which are known to the State of California to cause cancer. For more information go to