3M™ Fire Barrier Moldable Putty Stix MP+ is a one-part, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies. We formulated this dark red, easily moldable putty stick to provide up to 4 hours of fire protection. These putty stix also produce a draft and cold smoke seal and help reduce noise transfer.
For applications that require a conformal covering, this flexible 3M ™ Fire Protection Molding Compound MP + meets a number of requirements for fire protection panels that would be impractical for strips, wraps or rolls. This ready-to-use refractory material is designed for excellent adhesion to most building materials and is corrosion-resistant when used on metal - ideal for use with listed electrical sockets made of steel or plastic. It is also safe for applications such as synthetic cable jackets, making it suitable for fire fighting cable bundles. It does not crumble or dry out, has excellent aging properties and is accessible again after installation to save time and money. And the assembly of the sticks is very easy and inexpensive: Technicians shape the material by hand directly onto the substrate, without mixing or tools. Recommended applications Protection of membrane bushings for listed metallic and non-metallic control cabinets Wall opening to protect against building influences Sealing of gaps between cables in multiple penetrations (including fiber optic inner duct) Insulated pipes, electric cables and metal pipe penetrations
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