Leak Repair

EternaBond RoofSeal Black is a one-step permanent repair tape designed for all roof types and accessories. It uses MicroSealant technology with a UV-stable backing to form a waterproof, moisture- and air-tight barrier without additional sealant. It remains flexible in extreme temperatures and bonds to a wide range of roofing and construction materials. Key features: MicroSealant adhesive with UV-stable backing for long-term durability Forms an instant waterproof, moisture-tight and air-tight...

EternaBond EternaPrime is used to condition surfaces that are oxidized, dusty, or cannot be fully cleaned, or when installation temperatures drop below 40 °F. It helps coalesce loose particles into a solid surface suitable for tape adhesion and is VOC-exempt in its brush-on version. (based on Big Rock Supply description) Key features: Prepares dirty, oxidized or dusty surfaces for tape adhesion Enables installation of EternaBond tapes at temperatures down to approximately -20 °F (with proper...

EternaPrime is used when surfaces to be bonded are very dirty, oxidized, dusty, or when installation temperature will be below 40 °F. It coalesces loose particles into a solid platform for adhesion of EternaBond tapes. The brush-on version is VOC exempt. Key features: Prepares surfaces that cannot be fully cleaned (rust, scale, dust, tar/gravel) for tape adhesion Enables tape installation in lower ambient temperatures (below 40 °F) Solvent-based primer with elastomer/resin blend and VOC exempt...

EternaBond DoubleStick tape features a double-sided MicroSealant adhesive protected by release liners on both sides. It forms a permanent waterproof bond between two surfaces, even dissimilar materials such as metal and membrane. Designed for extreme environments, it remains flexible to −70 °F and eliminates the need for liquid adhesives or curing. Key features: Double-sided MicroSealant adhesive bonds two surfaces instantly Compatible with dissimilar materials such as metal, membrane, and...

EternaBond WebSeal tape features a woven polyester backing laminated to MicroSealant® adhesive technology, forming a flexible, self-sealing barrier for roof seams, tears, flashings and transitions. It adheres to diverse surfaces including metal, TPO, EPDM, concrete and masonry and remains flexible even in extreme low temperatures. The tape may be top-coated and conforms to complex shapes without memory for long-term durability. Key features: Woven polyester backing with MicroSealant® adhesive...

EternaBond RoofSeal Black tape is a one-step permanent repair system that creates a waterproof, moisture- and air-tight barrier on virtually all roof types and accessories. It features MicroSealant® technology bonded to a UV-stable backing and remains flexible down to –70 °F, resisting thermal shock and leaks. The tape can be cut and folded around objects and adheres to surfaces including metal, masonry, wood and many single-ply systems. Key features: MicroSealant® adhesive to UV-stable...

EternaBond RoofSeal Black tape is a one-step permanent repair system that creates a waterproof, moisture- and air-tight barrier on virtually all roof types and accessories. It features MicroSealant® technology bonded to a UV-stable backing and remains flexible down to –70 °F, resisting thermal shock and leaks. The tape can be cut and folded around objects and adheres to surfaces including metal, masonry, wood and many single-ply systems. Key features: MicroSealant® adhesive to UV-stable...

DeWitt’s 911 Emergency Roof Patch is a contractor-grade powder formulated to provide a temporary, leak-proof seal on flat roofs during emergency conditions. The natural mineral compound expands to a gel on contact with water, helping stop leaks on built-up roofs quickly — even in inclement weather or standing water. This product can be applied directly from the pail over suspected leak areas without special tools, and it continues to seal as long as it remains wet. When conditions allow,...

EternaBond AlumiBond is a heavy-duty aluminum-backed repair tape designed for sealing and waterproofing roof seams, tears, and punctures. Using MicroSealant adhesive technology, it forms an air- and vapor-tight barrier that bonds to a wide range of substrates. The aluminum backing adds durability, UV protection, and paintability while maintaining flexibility across extreme temperature ranges. Key features: 4 mil aluminum foil backing with MicroSealant adhesive layer Creates an air-tight,...

EternaBond RoofSeal Plus Black is designed specifically for granulated roofs and other surfaces that require a deeper seal. It features MicroSealant® adhesive technology applied at a thicker profile (65 mils) bonded to a UV-stable backing to create a waterproof, moisture- and air-tight barrier. The tape remains flexible at very low temperatures and adheres to multiple roofing materials and substrates. Key features: 65 mils total adhesive/coating thickness for deeper sealing performance...

EternaBond RoofSeal Plus White is designed for granulated roofs and surfaces requiring a deeper seal. It uses MicroSealant® adhesive technology bonded to a UV-stable white backing to create a waterproof, moisture- and air-tight barrier. It remains flexible to very low temperatures and adheres to a wide range of roof materials and building substrates. Key features: UV-stable white backing combined with advanced MicroSealant® for deeper sealing One-step permanent repair tape designed for...

EternaBond RoofSeal Tan is designed for use on virtually all roof types and accessories. Incorporating MicroSealant® technology with a UV-stable tan backing, it forms a waterproof, moisture- and air-tight barrier without needing additional sealant. It remains flexible to very low temperatures and adheres to a wide variety of substrates including metal, masonry, wood and membranes. Key features: UV-stable tan backing combined with MicroSealant® technology for long-term durability One-step...

Millennium Water Block Mastic BP-300 is a gray, high-performance, low-VOC, non-curing, gun-grade mastic engineered for unexposed waterproofing applications. This permanently flexible sealant provides a positive seal across multiple substrates, remaining watertight under harsh conditions. It is ideal for use around terminations, under flashings, and other protected roofing details. Key Features Non-curing and non-skinning formulation Low VOC formula (<150 g/L), suitable for regulated markets...

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. The 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. This sealant is commonly used for sealing metal roof seams, fasteners, gutters, and roof penetrations. It conforms to the shape it is applied to, hangs vertically with...

838 MS is a hybrid moisture-cure elastomer sealant formulated to encapsulate seams and fastener heads on metal roofing systems with minimal sag. Its 100% solids, solvent-free formulation is isocyanate-free and exhibits less moisture sensitivity than standard polyurethanes while maintaining high tensile strength and elongation. The 750 ml resealable pouch format is well suited for sealing gutters, penetrations, and detailed repair areas where controlled dispensing and minimal waste are...