Add to Cart Quick view Metacaulk 1000 Highly Intumescent Firestop Sealant, 5US Gallon Metacaulk MSRP: Now: $436.19 Was: Metacaulk 1000 is a single component, general purpose fire rated sealant and smoke seal for construction joints and through-penetrations. Metacaulk 1000 is a water based, extremely intumescent,... 66309 MSRP: Now: $436.19 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $436.19 Was: Subtotal: Add to Cart