Henry #107 Asphalt Emulsion Sealer & Dampproofer 1 gal.

Henry #107 is a premium, water-based asphalt emulsion designed for versatile protection of roofing materials, metal and masonry surfaces. This cold-applied formula combines asphalt, bentonite clay and water to deliver a solvent-free, corrosion-resistant sealer that remains non-flammable while wet and forms a durable, waterproof membrane when dry. Its smooth black finish won’t crack, “alligator,” run or sag under extreme weather conditions, making it ideal for patching, flashing and full-surface coats.

Easy to apply with a brush, roller or spray system, Henry #107 offers excellent coverage and adhesion on built-up roofs, concrete, block, steel tanks and more. Whether you’re sealing a small repair or waterproofing an expansive roof deck, this emulsion sealer provides long-lasting protection against moisture, UV exposure and corrosive fumes.

Key Features

• Solvent-free, cold-applied asphalt emulsion
• Waterproof, corrosion-resistant finish
• Non-flammable during application
• Resists cracking, running and sagging
• Applies by brush, roller or spray
• Covers up to 100 sq ft per gallon
• Dries in 6–24 hours under normal conditions

⚠️ 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.