--- product_id: 13055649 title: "3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in" price: "β‚©58948" currency: KRW in_stock: true reviews_count: 11 url: https://www.desertcart.kr/products/13055649-3m-fire-barrier-moldable-putty-stix-mp-red-color-one store_origin: KR region: South Korea --- # STC 56 noise reduction 4-hour fire protection One-part, ready-to-use 3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in **Price:** β‚©58948 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Mold your safety, seal your peace of mind! ## Quick Answers - **What is this?** 3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - **How much does it cost?** β‚©58948 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/13055649-3m-fire-barrier-moldable-putty-stix-mp-red-color-one) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Long-Lasting Seal:** Creates a durable draft and cold smoke barrier that stays workable over time. - β€’ **Noise Control Bonus:** STC 56 rating reduces sound transfer, enhancing your workspace comfort. - β€’ **Effortless Application:** One-part, moldable putty stick that’s ready to useβ€”no mixing, no mess. - β€’ **Metal-Friendly Formula:** Noncorrosive and compatible with synthetic cable jackets for safe, reliable sealing. - β€’ **Unmatched Fire Defense:** Certified 4-hour firestop performance to protect your critical spaces. ## Overview 3M Fire Barrier Moldable Putty Stix MP+ is a professional-grade, intumescent firestop putty stick offering up to 4 hours of certified fire protection. Its one-part, re-enterable formula ensures easy application and long-lasting seals against fire, smoke, drafts, and noise, making it an essential solution for fire-rated assemblies in demanding industrial environments. ## Description 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. Review: Fire seal. Works great. Fills the holes. - Very easy to work with. A little tacky on your hands so maybe wear some gloves. Its a block of putty. Fill the holes and make your inspector happy. Review: Critical to fire safety sealing. - This is the Ul/CSA certified stuff that works! I was rebuilding a Suburban RV furnace and needed a fire/heat certified putty to replace the 30 year old stuff used to seal the fuel gas supply line between the heat exchanger and blower enclosure. This is a fire safety item and I did not want to trust the foreign-sourced material. I was delighted to find this 3M product here on AMZ. Genuine 3M quality sticky stuff that seals perfectly and likely to endure another 30 years. I had to look up the word 'intumescent' lol. Oh, yeah, just what is needed. ## Features - TESTED FIRESTOP PERFORMANCE: Tested and listed up to 4-hours in accordance with ASTM E814 (UL 1479) and CAN/ULC S115 - STC RATED: STC-rating of 56 when tested in STC 56-rated wall assembly - READY TO USE IMMEDIATELY: One-part, ready-to-use, re-enterable, intumescent putty stick that can be easily formed to firestop through-penetrations and blank openings in fire-rated assemblies - CREATES A LONG LASTING SEAL: Provides draft and cold smoke seal - REMAINS WORKABLE OVER TIME: Will not dry out or crumble for a re-enterable and repairable solution - NONCORROSIVE: Will not corrode metal and is compatible with synthetic cable jackets - For industrial/occupational use only. Not for consumer sale or use. ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.8 out of 5 stars 245 Reviews | ## Images ![3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - Image 1](https://m.media-amazon.com/images/I/51LPfd-5eHL.jpg) ![3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - Image 2](https://m.media-amazon.com/images/I/71JSZKFVD+L.jpg) ![3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - Image 3](https://m.media-amazon.com/images/I/A1YSlV-hUFL.jpg) ![3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - Image 4](https://m.media-amazon.com/images/I/81BshuN0v8L.jpg) ![3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - Image 5](https://m.media-amazon.com/images/I/71miM3IeUbL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fire seal. Works great. Fills the holes. *by R***. on March 20, 2026* Very easy to work with. A little tacky on your hands so maybe wear some gloves. Its a block of putty. Fill the holes and make your inspector happy. ### ⭐⭐⭐⭐⭐ Critical to fire safety sealing. *by M***S on September 27, 2025* This is the Ul/CSA certified stuff that works! I was rebuilding a Suburban RV furnace and needed a fire/heat certified putty to replace the 30 year old stuff used to seal the fuel gas supply line between the heat exchanger and blower enclosure. This is a fire safety item and I did not want to trust the foreign-sourced material. I was delighted to find this 3M product here on AMZ. Genuine 3M quality sticky stuff that seals perfectly and likely to endure another 30 years. I had to look up the word 'intumescent' lol. Oh, yeah, just what is needed. ### ⭐⭐⭐⭐⭐ Great to seal air leaks in our gas fireplace and certain exterior outlets *by D***D on March 21, 2026* This is a great solution to fix air leaks in exterior outlets when a gasket alone isn’t enough. Simply find and Seal the air gaps in the electrical box behind the outlet to stop the airflow at the source. ## Frequently Bought Together - 3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in - 3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - 3M Fire Block Foam FB-Foam, Orange Color, Ready-To-Use, Foam-In-Place, 12 fl oz Can --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.kr/products/13055649-3m-fire-barrier-moldable-putty-stix-mp-red-color-one](https://www.desertcart.kr/products/13055649-3m-fire-barrier-moldable-putty-stix-mp-red-color-one) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-12*