The new Seal-Fast® Liqui-Flash polyurethane roofing sealant from Mule-Hide Products Co. Inc. reportedly seals complex details quickly and permanently. The company reports that the product is easy to use and provides excellent adhesion, elongation, and tensile strength, offering a versatile maintenance and repair solution.

The one-component, 100% solids, non-shrink, polyurethane sealant can be used in typical and difficult-to-access applications, including flashings, skylights, pitch pockets (filling and sealing), inlaid gutters, air conditioners, brick ties, roof vents, penetrations, ductwork, roof hatches, chimneys, and seams. It is compatible with a wide range of substrates, including metal, polyurethane foam, aged smooth asphalt, aged modified bitumen, aged PVC, and aged EPDM.

Seal-Fast Liqui-Flash may be used on TPO roofing systems when primed with Mule-Hide Si TPO primer. It is compatible with Mule-Hide Products' acrylic and silicone roof coatings and is reportedly an ideal choice for repairing hail-damaged polyurethane foam roofs.

The company reports that Seal-Fast Liqui-Flash goes on in one step using a brush or a ribbon nozzle. It requires minimal tooling but is viscous enough to prevent running and drain-out. It is semi-self-leveling, allowing it to be used for sealing and repairing single-ply membranes at any slope. Fabric reinforcement is not required for repairs, and no stirring is needed.

Seal-Fast Liqui-Flash is available in three colors: black, white, and gray. It is packaged in 10-oz caulk tubes, 20-oz sausage tubes, 1-gal pails, and 3.5-gal pails.

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