3M Fire Barrier Moldable Putty Stix MP+, Red, 1.4 in x 11 in, 10/case

• Excellent adhesion and aging properties provide a long-term performance
• Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) & CAN/ULC S115
• Helps reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
• Low VOC, halogen-free and solvent-free formula for safe working environment with minimal odor
• Noncorrosive to metal and compatible with synthetic cable jackets
• Pliable and conformable design easily molds into required shapes
• Putty provides draft and cold smoke seal
• Will not dry out or crumble for a re-enterable and repairable solution

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. Formulated dark red, this easily moldable putty stick provides up to 4 hours of fire protection. These putty stix also produce a draft and cold smoke seal and help reduce noise transfer.

Moldable Firestop
Conformable and ready-to-use, our 3M™ Fire Barrier Moldable Putty Stix MP+ is a one-part, intumescent firestop containing a synthetic elastomer. The intumescent property of this material allows 3M™ Fire Barrier Moldable Putty Stix MP+ to expand and help maintain a firestop penetration seal for up to 4 hours. We designed this putty to be easily moldable by hand, conforming into required shapes. This firestop also exhibits excellent adhesion to a full range of construction substrates and penetrants. In addition, 3M™ Fire Barrier Moldable Putty Stix MP+ helps minimize sound transmission through assemblies requiring an STC rating and acts as a draft and cold smoke seal for systems with L-Ratings. This firestop putty has excellent aging properties, will not dry out or crumble and is a re-enterable and repairable solution.

Recommended Applications
3M™ Fire Barrier Moldable Putty Stix MP+ are typically used to seal gaps between cables in multiple penetrations and is suited for numerous firestop applications including:

• Cable (including fiber inner duct and cable)
• Insulated pipe
• Electrical Conduit
• Metal Pipe
• Penetration against air draft, smoke, noxious gas and flame propagation

Meets Firestop Requirements
3M™ Fire Barrier Moldable Putty Stix MP+ features low VOC and its halogen- and solvent-free formula is non-corrosive and safe for sensitive electrical equipment. This product is compatible with synthetic cable jackets.

3M™ Fire Barrier Moldable Putty Stix MP+ firestops penetrations passing through fire-rated floor, floor/ceiling or wall assemblies and blank openings. When used in a through penetration firestop application, this firestop putty intumesces in the annular space to completely surround the penetrant, helping prevent the spread of fire, smoke and toxic gas before, during and after exposure to a fire.

3M™ Fire Barrier Moldable Putty+ meets ASTM E 814 (UL 1479) requirements and STC-Rating of 52 when tested in a STC 53-Rated wall assembly. This product also meets the requirements of key life safety codes, including the International Building Code (IBC), NFPA 5000, NEC (NFPA 70), NFPA 101 and NBC (Canada) Building Codes. In addition, this firestop meets the intent of LEED® VOC guidelines.

Fire Protection Formed to Specifications
This intumescent firestop putty is easily formed to firestop through penetrations and blank openings in fire-rated assemblies, providing a shield that helps prevent the spread of fire, smoke and toxic gas. For a conformable yet tough firestop, enjoy the excellent, protective features of our 3M™ Fire Barrier Moldable Putty Stix MP+.

Trusted 3M Firestop Solution

The 3M Fire Barrier Moldable Putty Stix MP+ offers reliable fire protection with its one-part, intumescent formula. This red putty stick is designed to expand and seal penetrations, providing up to 4 hours of fire resistance in rated assemblies.

Its moldable nature allows easy application around cables and openings, making it a versatile choice for firestop needs. The MP+ model ensures excellent adhesion and long-term durability for lasting safety.

Effective Noise And Seal

Besides fire protection, this putty helps reduce noise transfer with an STC rating of 56 when tested in a rated wall assembly. It also acts as a draft and cold smoke seal, improving overall building comfort and safety.

Its pliable design conforms easily to gaps between cables and penetrants, making it ideal for sealing multiple penetrations. This feature enhances both soundproofing and smoke containment in fire-rated walls.

Safe Low VOC Formula

The 3M Fire Barrier Moldable Putty Stix MP+ uses a low VOC, halogen-free, and solvent-free formula. This ensures a safer working environment with minimal odor and no corrosive effects on metal or synthetic cable jackets.

This compatibility with various materials makes it suitable for sensitive electrical equipment and diverse construction substrates, maintaining integrity without damage or degradation.

Convenient Size And Format

Each putty stick measures 1.4 inches by 11 inches, providing a manageable size for easy handling and application. The product comes in a pack of 10 per case, offering enough material for multiple firestop projects.

This format supports efficient use on-site, allowing installers to mold and apply the putty quickly around penetrations and blank openings in fire-rated floor, wall, or ceiling assemblies.

Re-Enterable And Repairable Design

The MP+ putty won’t dry out or crumble, making it a re-enterable and repairable firestop solution. This means it can be removed and reapplied if needed without losing its protective properties.

Its pliable, conformable design ensures it maintains a tight seal over time, providing ongoing protection against fire, smoke, and toxic gases in critical building areas.