Dottie MC150 General Purpose Fire Stop Caulking Compound

Protect critical infrastructure and sensitive equipment with Dottie MC150 General Purpose Fire Stop Caulking Compound. This Dottie sealant is a one-component, water-based, elastomeric fire-stop and acoustic seal designed to stop the passage of fire, smoke, hot gases and water through construction joints and through-penetrations. MC150’s non-sag, caulking-grade consistency makes it easy to apply and retrofit around cables, conduits and pipe penetrations commonly found in security, surveillance and monitoring rooms. Because it cures to a flexible seal, it accommodates dynamic movement without cracking—maintaining protection in areas with vibration or thermal expansion. The red, commercial-grade compound is RoHS-compliant and non-toxic, simplifying handling and installation in occupied facilities. Use MC150 to preserve fire and smoke barriers around server racks, network closets, CCTV and access control cabling, and other critical low-voltage systems. Order Dottie MC150 to ensure reliable fire, smoke and acoustic protection for your next security or IT project.

• Creates a flexible, elastomeric seal that accommodates dynamic movement to protect joints and through‑penetrations
• Provides fire-rated, smoke and acoustic protection to prevent spread of flames, smoke and hot gases
• Water-based, one-component formula is non-toxic and requires no mixing for fast retrofit and new construction work
• Non-sag, caulking-grade consistency for neat application around cables, conduit and penetrations in security and IT rooms
• Helps maintain integrity of surveillance, monitoring and networking installations by sealing cable penetrations and service openings