Henry #107 Asphalt Emulsion Sealer & Dampproofer (4.75 gal)

Henry #107 Asphalt Emulsion is a premium, versatile coating designed for lasting protection of roofing, masonry and metal surfaces. This solvent-free, non-fibered asphalt emulsion is cold-applied and non-flammable while wet, transforming into a waterproof, corrosion-resistant membrane as it cures. Whether you’re dampproofing exterior foundations or applying a base coat for reflective systems, Henry #107 delivers reliable adhesion and long-term durability without cracking, alligatoring, running or sagging—even under extreme weather conditions.

Ideal for use on concrete, masonry, steel tanks and smooth-surface built-up roofs, this coating resists most corrosive fumes and sprays. Its black, elastomeric finish adheres firmly to clean, sound substrates and provides a ready surface for additional protective or reflective topcoats. With easy brush, roller or spray application and a coverage of roughly 100 sq ft per coat, Henry #107 is the go-to solution for waterproofing and dampproofing projects.

Key Features

• Solvent-free, non-fibered asphalt emulsion
• Cold-applied; non-flammable while wet
• Waterproof and corrosion-resistant when dry
• Does not crack, alligator, run or sag under extreme conditions
• Ideal dampproofing for below-grade walls and foundations
• Base coat for energy-saving reflective roof systems
• Resists most corrosive fumes and spray
• Coverage: approx. 100 sq ft per coat
• Ready for brush, roller or spray application

⚠️ WARNING: This product can expose you to Benz[a]anthracene known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.

⚠️ WARNING: This product can expose you to polycyclic aromatic compounds (possibly present in asphalt in trace amounts) which are known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.