Description
BOSS® 822 Expansion Joint Sealant is a free flowing, self-leveling, one component material. Its flowable characteristics allow it to fill in joints and cracks to make a smooth and permanent seal. Supplied ready-to-use, this material cures at room temperature to a tough, rubbery solid. It adheres well to most common construction substrates including concrete, wood, vinyl, glass and various plastics. BOSS® 822 Expansion Joint Sealant resists weathering, moisture, vibration, ozone, thermal expansion and temperature extremes. Stays flexible from -85°F to 400°F (-65°C to 204°C).









