Black Jack, QT, White, Silicone Roof Patch, Exterior Use Only, 28 OZ Fill Level, Heavy Duty, Rubber Sealant That Provides The Ultimate Waterproofing Protection From The Elements, Has Exceptional Adhesion & Flexibility & Is Compatible With Most Building Materials, Use To Make Repairs On Damaged Roof Areas, In Hot Or Cold Climates, Waterproof Seal Will Permanently Stretch To Prevent Cracking & Peeling, Apply With Trowel Or Stiff Brush, Add Universal Reinforcing Fabric Into The Repair For Permanent Repairs & Cover With Additional Layer Of Sealant, Coverage Per Container Approximately 3 SQFT, 50 Year Limited Warranty.