HSS Sealant Tape Waterproof Roofing Tape — Black 2 in x 25 ft with MicroSealant, UV- and Weatherproof

HSS Sealant Tape with MicroSealant is a commercial-grade, black waterproof roofing tape designed to stop leaks quickly and provide long-lasting UV- and weather-resistant protection for roofs, RVs, and other exterior surfaces.

This heavy-duty repair tape pairs a tacky but stable adhesive matrix with HSS’s MicroSealant technology to bond instantly to most building materials and hold through heat, rain, wind, and freezing conditions. It’s sold in a 2 inch by 25 foot roll sized for flashing, seams, vents, gutters, and small-to-medium repairs where a fast, durable seal is needed. The tape is formulated for outdoor durability and manufactured in the USA for consistent quality.

How does this tape stop roof and RV leaks so quickly?

The MicroSealant layer activates on contact and forms an immediate water-blocking barrier while the adhesive cures to a permanent bond. That combination prevents water intrusion through gaps and creates a flexible seal that moves with surfaces instead of cracking.

• Patented MicroSealant technology for instant sealing
• Pressure-sensitive adhesive for immediate hold
• Flexible backing accommodates thermal expansion and movement

Will it withstand sun, rain, and freezing temperatures?

Yes — the formulation resists UV breakdown, temperature extremes, and moisture so it won’t become brittle, peel, or lose adhesion under typical outdoor exposure. It maintains integrity across seasonal cycles that commonly cause other tapes to fail.

• UV-stable surface prevents sun damage and discoloration
• Weatherproof chemistry resists rain and ice
• Engineered for long-term outdoor performance

Which surfaces and repairs is the tape best suited for?

HSS Sealant Tape bonds to commonly used roofing materials and vehicle substrates, making it versatile for flashing, seam repair, vent collars, roof penetrations, RV roofs, gutter repairs, and temporary emergency fixes. It’s not intended for continuously submerged or pressurized leaks.

• Effective on metal, rubber, EPDM, asphalt, wood, and many composites
• Ideal for RV roofs, flat roofs, vent flashing, and patching
• Use for quick emergency stops or long-term patching

How do I apply HSS Sealant Tape for best results?

For a reliable seal, clean and dry the surface, remove dirt, oil, and loose material, then apply firm pressure along the tape to engage the adhesive and MicroSealant layer. Overlap seams by at least 1" and smooth with a roller or hand pressure to eliminate voids and ensure full contact.

• Prepare surface: clean, dry, and degrease
• Overlap seams and press firmly to set the sealant
• Trim excess for neat edges and allow the adhesive to set

Who is this for: HSS Sealant Tape is intended for contractors, property managers, RV owners, and DIYers who need a trusted, straightforward solution for exterior repairs that demand quick waterproofing and durable weather resistance. If you want a compact, ready-to-use tape for flashing, seam repairs, or emergency leak stops that resists sunlight and temperature changes, this 2" x 25' roll offers a professional-grade option without specialized tools.