BOSS 816 UL classified intumescent firestop sealant is a fire rated, general purpose sealant for use on through-penetrations and construction joints. It is a single component, non-sag, water based sealant and smoke seal that is easy to apply and clean up. BOSS 816 will prevent the spread of toxic gases, water, smoke and fire through joint openings and through penetrations. BOSS 816 is suitable for adhesion to almost any surface and remains flexible, making it ideal for both horizontal and vertical joints, subject to vibration or dynamic movement. It bonds quickly, has excellent adhesion and is non-toxic. BOSS 816 is protected against mold growth with a combination of biocides in both wet and dry stages.,
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Boss 125 multi seal building/construction sealant is a multipurpose, one part sealant, formulated from a hybrid polymer. This unique sealant is free from solvents, silicone, isocyanates and other hazardous raw materials. It cures on exposure to atmospheric moisture to form a highly durable flexible sealant. Multi seal has been formulated to offer outstanding primerless adhesion to most common building materials including vinyl, aluminum, steel, concrete, wood and glass. It can be applied and tooled under most weather conditions. This sealant is paintable with most latex base paints.

Boss 125 multi seal building/construction sealant is a multipurpose, one part sealant, formulated from a hybrid polymer. This unique sealant is free from solvents, silicone, isocyanates and other hazardous raw materials. It cures on exposure to atmospheric moisture to form a highly durable flexible sealant. Multi seal has been formulated to offer outstanding primerless adhesion to most common building materials including vinyl, aluminum, steel, concrete, wood and glass. It can be applied and tooled under most weather conditions. This sealant is paintable with most latex base paints.

• Ease of use, one part sealant, no mixing required
• Good weather ability virtually unaffected by sunlight, rain, snow, ozone and temperature extremes
• Good UV resistance and color stability
• Long life reliability, cured sealant stays flexible without tearing, cracking, drying out or becoming brittle
• With its non slump properties, can be used in vertical, horizontal and overhead joints
• Wide temperature gunnability, can be applied in any season
• Non yellowing and non staining
• Non streaking
• Paintable with most latex base paints
• Free from solvents and isocyanates

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Boss 125 multi seal building/construction sealant is a multipurpose, one part sealant, formulated from a hybrid polymer. This unique sealant is free from solvents, silicone, isocyanates and other hazardous raw materials. It cures on exposure to atmospheric moisture to form a highly durable flexible sealant. Multi seal has been formulated to offer outstanding primerless adhesion to most common building materials including vinyl, aluminum, steel, concrete, wood and glass. It can be applied and tooled under most weather conditions. This sealant is paintable with most latex base paints.

Boss 12501-BOSS

Boss 326 Hi-temp Red Silicone Sealant is a one-part, nonslumping paste that cures to a tough, rubbery solid at room temperature on exposure to water vapor in the air. This silicone product was formulated to perform at temperatures ranging from -40 to 500 deg F. It can be used for numerous sealing and bonding applications.,
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Boss Silicone BOSS315 Clear NSF 10.3 oz.