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- Metacaulk® 835+ is a 1-component, fire-rated elastomeric silicone sealant for through penetration firestops. Prevents flames/smoke/gas/water spreading through penetration openings. Silicone based - use in systems where dynamic movement is expected.
Metacaulk® Firestop Sealant, Elastomeric, Series: 835+, Pail Container, 5 gal Container, Silicone Base, Composition: Amorphous Silica, Ketoxime Silane, Calcium Carbonate, Carbon Black, Titanium Dioxide, Liquid Form, 15 min Drying, Fire Rating: Up to 4 hr, 21 days Curing, Gray, Mild Odor/Scent, 40 to 90 deg F, 1.31 to 1.33 Specific Gravity, 25 g/L VOC, Flammability: 2, Applicable Materials: Concrete, EMT, Gypsum, Metal and Insulated/Uninsulated Steel Pipe
- 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 and neutral, moisture cure and low odor, excellent moisture resistance and 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 and use in exterior and interior penetrations and available in 2 grades caulk grade and self-leveling, applied with a conventional caulking gun, trowel or with pumping equipment
- Weather/chemical resistant
- Excellent moisture resistance
- Base TypeSiliconeColorGrayContainer Size5 lbContainer TypePailCuring Time21Drying Time15Fire RatingUp to 4 hrFlammability Rating2FormLiquidManufacturerRectorSealManufacturer #66019Odor / ScentMildSeries835+Specific Gravity1.31 to 1.33Temperature Rating40 to 90 degFTypeElastomericVOC Content25