{"product_id":"3m-fire-barrier-moldable-putty-stix-mp-red-intumescent-re-enterable-firestop-putty-up-to-4-hours","title":"3M Fire Barrier Moldable Putty Stix MP+ Red — Intumescent, Re-Enterable Firestop Putty (Up to 4 Hours)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e3M Fire Barrier Moldable Putty Stix MP+ is a one-part, re-enterable intumescent putty that you can hand-form to seal penetrations and blank openings in fire-rated assemblies. Its dark red color helps with visibility during installation, making it easier to confirm a complete, continuous seal. The product is designed for industrial environments and supports flexible adaptation to irregular shapes and gaps.\u003c\/p\u003e\n\u003ch2\u003ePerformance and Benefits\u003c\/h2\u003e\n\u003cp\u003eThe putty delivers firestop performance that has been tested up to 4 hours in accordance with ASTM E814 (UL 1479) and CAN\/ULC S115. In the right wall assembly, it can contribute to an STC rating of 56, supporting enhanced sound isolation where required. As a ready-to-use material, it can be formed to fit through penetrations and blank openings without special tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-part, ready-to-use, re-enterable putty that stays workable over time\u003c\/li\u003e\n  \u003cli\u003eForms a draft seal and a cold smoke barrier to help reduce air and smoke transfer\u003c\/li\u003e\n  \u003cli\u003eNoncorrosive and compatible with synthetic cable jackets\u003c\/li\u003e\n  \u003cli\u003eDark red color aids visual verification during installation\u003c\/li\u003e\n  \u003cli\u003eLabor-friendly, adaptable for irregular openings and through-penetrations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePractical Applications\u003c\/h2\u003e\n\u003cp\u003eUse MP+ to seal through penetrations and blank openings in fire-rated assemblies across industrial facilities. The material can be re-entered for adjustments or repairs as installations evolve, without crumbling or losing workability. It is tailored for settings where reliable firestop performance, air sealing, and noise containment are priorities.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSeal around pipes, conduits, and cables in walls and floors\u003c\/li\u003e\n  \u003cli\u003eFill blank openings in fire-rated assemblies before final finishing\u003c\/li\u003e\n  \u003cli\u003eProvide a long-lasting, maintenance-friendly seal that can be reworked if needed\u003c\/li\u003e\n  \u003cli\u003eSupport draft and cold smoke control in occupied spaces\u003c\/li\u003e\n  \u003cli\u003eIdeal for industrial\/occupational environments; not intended for consumer sale or use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Details and Guidelines\u003c\/h2\u003e\n\u003cp\u003eMP+ is designed to be noncorrosive and compatible with synthetic cable jackets, helping protect metal components and electrical insulation during installation. The material remains workable over time, offering a practical option for ongoing projects or future re-entry needs. For best results, follow standard firestop installation practices and consult the product’s listed specifications.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is 3M Fire Barrier Moldable Putty Stix MP+ used for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A ready-to-use, one-part putty that seals penetrations and blank openings in fire-rated assemblies, with up to 4 hours of protection and a draft\/cold smoke seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is it noncorrosive and compatible with cable jackets?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the putty is noncorrosive and compatible with synthetic cable jackets, suitable for industrial installations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":53087363170415,"sku":"B002FYAMPM","price":27.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/3m-fire-barrier-putty-stix-red-moldable-through-penetration.jpg?v=1778654266","url":"https:\/\/taskholt.com\/products\/3m-fire-barrier-moldable-putty-stix-mp-red-intumescent-re-enterable-firestop-putty-up-to-4-hours","provider":"TaskHolt","version":"1.0","type":"link"}