metacaulk® 835+ is a one component, fire-rated elastomeric neutral, moisture cure silicone sealant for use in through penetration firestops and construction joints. Available in caulk-grade and self-leveling. In the event of a fire, metacaulk® 835+ will prevent the spread of flames, smoke, gas and water through penetration openings. metacaulk® 835+ caulk-grade is a flexible, non-slumping sealant with excellent moisture resistance. For use in interior or exterior expansion and control joints and interior or exterior penetrations. Because metacaulk® 835+ is silicone based, it can be used in systems where dynamic movement is expected. metacaulk® 835+ is protected in a wet stage as well as in a dry stage against mold growth with a combination of biocides.

metacaulk® Firestop Sealant, 10.15 oz Net Content, Cartridge Container, Composition: Calcium Carbonate, 2-Butanone, O, O', O"- (Methylsilylidyne) Trioxime, Silica 2482, Hydrophobic, Titanium Dioxide, Paste Form, Gray, 21 days Curing Time, 18 cu-in Coverage Area, 1.001 to 1.005 Specific Gravity, -25 g/L VOC, Silicone Base, 2 years Shelf Life, Applicable Materials: Steel, Application Method: Caulk Gun, Trowel, 600 % Elongation, Evaporation Rate: >1, -20 to 120 deg F

• STC rating 55 as well as FBC system compatible - indicates that product has been tested and is monitored on an ongoing basis to assure chemical compatibility with FlowGuard Gold, BlazeMaster and Corzan pipe and fittings
• A single component penetration sealant system - no mixing or required additives needed
• Flexible and non-slump formula
• Neutral, moisture cure and low odor
• Excellent moisture resistance
• Protected in wet and dry stages against mold growth with a combination of biocides
• Dot classification is not regulated
• Use in interior or exterior expansion, contraction and control joints
• Use in exterior and interior penetrations
• Applied with a conventional caulking gun, trowel or with pumping equipment