--- product_id: 63119466 title: "3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7\" x 7\", 20/case - Red" price: "$507.28" currency: USD in_stock: true reviews_count: 5 url: https://www.desertcart.us/products/63119466-3m-fire-barrier-moldable-putty-pads-mpp-shapeable-firestop-pads store_origin: US region: United States of America --- # sound damping barrier 4-hour fire resistance shapeable for precise fit 3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red **Price:** $507.28 **Availability:** ✅ In Stock ## Summary > 🔥 Mold the future of fire safety with precision and ease! ## Quick Answers - **What is this?** 3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - **How much does it cost?** $507.28 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/63119466-3m-fire-barrier-moldable-putty-pads-mpp-shapeable-firestop-pads) ## 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 - • **Universal Adhesion:** Non-corrosive formula sticks reliably to metal, plastic, and most construction materials. - • **Firestop Confidence:** UL tested to withstand fire for up to 4 hours, securing your space with proven protection. - • **Soundproof & Secure:** Dual-action barrier reduces airborne noise while sealing out drafts and cold smoke. - • **Perfect Fit Every Time:** Moldable pads conform effortlessly to electrical boxes and tricky openings—no tools, no mess. - • **Ready-to-Use Convenience:** Pre-cut 7" x 7" pads eliminate prep time—just peel, shape, and install for fast firestop solutions. ## Overview 3M Fire Barrier Moldable Putty Pads MPP+ are UL-approved, shapeable firestop pads designed for wall openings and through penetrations. Measuring 7" x 7" and sold in cases of 20, these red pads provide up to 4 hours of fire resistance per ASTM E 814 standards. They offer excellent adhesion to various substrates, sound damping, and easy, tool-free application—ideal for professional-grade fire and sound protection in electrical installations. ## Description For applications requiring conformable coverage, these pliable 3M Fire Barrier Moldable Putty Pads MPP+ meet a full range of firestop needs that would be impractical with strips, wraps or rolls. Ready to use in convenient 1/10" (2.54 mm) thick pads, this firestop material is designed for excellent adhesion to most construction substrates and is non-corrosive when applied to metal — ideal for use with listed steel or plastic electrical outlet boxes. It is also safe for applications including synthetic cable jackets, making it suitable for firestopping cable bundles. It won't crumble or dry out, exhibits excellent aging properties and is re-enterable to save time and money after installation. And the pads are extremely simple and cost-effective to install; technicians mold the material by hand directly onto the substrate without mixing or tools. For larger applications, self-adhering pads can be molded together. Review: Sound and fire protection - Used these for a remodeling job. Difficult to put in place but excellent coverage for sound and fire Review: Would buy again - Quality product. Used to help sound proof my laundry room. Kinda nice to have those outlets sealed from electrical ignition in there too. ## Features - Causes serious eye irritation. - May cause an allergic skin reaction. - Suspected of damaging fertility or the unborn child. - BUILDING CODE COMPLIANCE - Adheres to the back of electrical boxes to restore the rating of the fire wall - HELPS PREVENT THE SPREAD OF FIRE – dozens of CLIV “Wall Opening Protectives” UL approved configurations - LONG-LASTING FIRESTOP - firestop tested for through penetration and membrane applications for up to 4 hours in accordance with ASTM E 814 (UL 1479) - SHAPEABLE PUTTY FOR EXACTING COVERAGE – easily shape it to nooks and crannies of electrical boxes and other applications - SOUND DAMPING - acts as a barrier to airborne sound transmission and also provides draft and cold smoke seal.EXCELLENT ADHESION TO VARIETY OF MATERIALS - designed to adhere to most construction substrates, non-corrosive when applied to metal, ideal for use with listed steel or plastic electrical outlet boxes.EASY, CLEAN APPLICATION - comes ready to use in convenient 1/10 inch (2.54 mm) thick pads that are conformable by hand with no mixing or tools ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | 3M | | Part number | 50051115165097 | | Item Weight | 2.63 kg | | Package Dimensions | 23.9 x 19 x 6.91 cm; 2.63 kg | | Item model number | 98040055240 | | Size | 7 in x 7 in | | Colour | Red | | Item Package Quantity | 1 | | Included components | Putty Pads | | Batteries included? | No | | Batteries Required? | No | ## Images ![3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - Image 1](https://m.media-amazon.com/images/I/51Opy2VD+1L.jpg) ![3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - Image 2](https://m.media-amazon.com/images/I/71XLgZia7TL.jpg) ![3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - Image 3](https://m.media-amazon.com/images/I/81gCw3FEiTL.jpg) ![3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - Image 4](https://m.media-amazon.com/images/I/71QsZ5yYjTL.jpg) ![3M Fire Barrier Moldable Putty Pads MPP+ - Shapeable Firestop Pads for Wall Openings and Through Penetrations - 7" x 7", 20/case - Red - Image 5](https://m.media-amazon.com/images/I/81oYy4zphZL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sound and fire protection *by C***E on 11 July 2020* Used these for a remodeling job. Difficult to put in place but excellent coverage for sound and fire ### ⭐⭐⭐⭐⭐ Would buy again *by A***G on 29 June 2026* Quality product. Used to help sound proof my laundry room. Kinda nice to have those outlets sealed from electrical ignition in there too. ### ⭐⭐⭐⭐⭐ Using for Sound Insulation-Easy to Use and Conforms well to Electric and Other Boxes *by R***N on 17 June 2021* I'm using these putty pads for their sound insulating properties. As I haven't installed the sound walls yet, it's hard to tell yet whether they do an effective job but they were fairly easy to use and adhere to the back of electric boxes for outlets and ceiling light boxes. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/63119466-3m-fire-barrier-moldable-putty-pads-mpp-shapeable-firestop-pads](https://www.desertcart.us/products/63119466-3m-fire-barrier-moldable-putty-pads-mpp-shapeable-firestop-pads) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-20*