Specialty Sealants

FlameSeal® Fire, Smoke & Draft Stop Sealant is a multi-purpose, one compound elastomeric product for sealing joints and service penetrations in Fire Separations and Firewalls. It is designed to prevent the passage of flame, smoke and fumes under actual fire conditions of 1, 2, and 3 Hour fire resistance rated systems. FlameSeal utilizes a special waterborne technology that is both non-toxic and non-hazardous. This easy to use sealant was developed for use in both residential and commercial fire stopping applications.

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OSI® Pro-Series® RF-140™ Roofing & Flashing Sealant is manufactured using a special synthetic rubber and select cuts of asphalts. This allows RF-140 ™ to cure into a tough, rubbery stage which will expand and contract more readily during temperature variations.

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OSI® Pro-Series® BT-145 Black Magic™ Blacktop Crack Sealant is an easy-to-use filler for cracks in asphalt surfaces.

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OSI® Pro-Series® CS-150™ Latex Concrete Crack Sealant is a quality latex caulk suitable for repairing cracks in any concrete surface. Long lasting, weather resistant formula.

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OSI® Pro-Series® SC-175™ Acoustical Sound Sealant is a water based sealant designed to reduce sound transmissions in walls and partition systems. Primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system design. VOC compliant.

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OSI® Pro-Series® SC-170™ Acoustical Sound Sealant is specially designed for reducing sound transmissions in all types of wall partitions to maintain specified STC values.  Sealant is no

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RT-1000™, an Elastomeric Roof Sealant is made using high quality S.E.B.S. rubber block co-polymers and synthetic resins.  It is available in a non-sag formulation.  This unique blend of rubber and resin creates a sealant that is UV resistan

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