Name: Metacaulk MC 150+ Firestop Sealant
SKU: 66383
Availability: InStock

The Metacaulk MC 150+ is a versatile, intumescent fire-rated sealant designed for construction joints and through-penetrations.

Activated by fire exposure, it prevents the spread of flames, smoke, hot gases, and water, providing up to 4 hours of fire protection as per ASTM E814 (UL 1479) and ASTM E1966 (UL 2079) standards. With an STC rating of 51 for sound control and a minimum 3-year shelf life, this water-based, VOC-compliant sealant is ideal for interior applications requiring flexibility, durability, and ease of use.

Approval / Capability	Metacaulk 150+	STI SpecSeal LCI	STI SpecSeal ES	Hilti FS One Max	Hilti CP 606	3M IE 15	3M 150+
3 Hr. CAJ & FA Approvals for Concrete Assemblies	Reviews There are no reviews yet. Be the first to review “Metacaulk MC 150+ Firestop Sealant” Cancel reply Your email address will not be published. Required fields are marked * Your rating * Your review * Name * Email * Save my name, email, and website in this browser for the next time I comment. Related products Sale! Sale! Add to cart Sell Farm And Industry Enamel – Case of 6 Original price was: $49.50.Current price is: $14.85. Add to cart Sale! Sale! Add to cart Sell Lift-N-Tow Original price was: $1,495.00.Current price is: $299.00. Add to cart Sale! Sale! Add to cart Sell Clipper CST Series Overhead Rail Masonry Saw – Electric Original price was: $4,891.27.Current price is: $978.25. Add to cart Sale! Sale! Add to cart Sell Quick-Tach Truss Booms Original price was: $2,666.00.Current price is: $533.20. Add to cart Shopping Cart Shipping Policy Terms of Service Privacy Policy About Us Contact Us Copyright © 2026 www.coolgrittools.com Metacaulk MC 150+ Firestop Sealant Original price was: $309.84.Current price is: $61.97. Size: Metacaulk MC 150+ Firestop Sealant quantity Buy now Scroll to Top