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3M Fire Barrier Sealant CP 25WB+ - for Commercial, Industrial and Residential Applications - Cartridge, 10.1 fluid ounces - Red- Pack of 12

Inventory: 968 remaining available
£45.99 GBP
Shipping fees will be calculated at checkout.
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Free UK Delivery | We Accept: Every payment made by VISA or Mastercard on AFTH Living is protected by industry-standard SSL encryption and the PCI-DSS data protection protocol, ensuring your payment information is safeguarded to the greatest extent. We officially support: VISA · Mastercard
Free UK Delivery | We Accept: Every payment made by VISA or Mastercard on AFTH Living is protected by industry-standard SSL encryption and the PCI-DSS data protection protocol, ensuring your payment information is safeguarded to the greatest extent. We officially support: VISA · Mastercard
Delivery Guarantee
We guarantee that your order will be delivered within our scheduled delivery window (1–2 business days handling and 2–3 business days transit). You can check the tracked logistics information of your package at any time to monitor its real-time progress across the United Kingdom. If your delivery is delayed due to non-justifiable reasons, AFTH Living will proactively refund 10% of the total order amount back to your original payment card as compensation for the inconvenience.
Refund and Return Guarantee
If the home accessories you receive have not been successfully dispatched, are lost during transportation, or arrive damaged upon signing, you can apply for a 100% full refund. We also provide full coverage for any verified quality issues or non-compliance with your order description. We promise to authorize and handle your refund application quickly and transparently within 3 business days of verification.
For more detailed information about our premium delivery routing, return steps, and refund frameworks, please refer to our dedicated policy explanations below.
Delivery Guarantee
We guarantee that your order will be delivered within our scheduled delivery window (1–2 business days handling and 2–3 business days transit). You can check the tracked logistics information of your package at any time to monitor its real-time progress across the United Kingdom. If your delivery is delayed due to non-justifiable reasons, AFTH Living will proactively refund 10% of the total order amount back to your original payment card as compensation for the inconvenience.
Refund and Return Guarantee
If the home accessories you receive have not been successfully dispatched, are lost during transportation, or arrive damaged upon signing, you can apply for a 100% full refund. We also provide full coverage for any verified quality issues or non-compliance with your order description. We promise to authorize and handle your refund application quickly and transparently within 3 business days of verification.
For more detailed information about our premium delivery routing, return steps, and refund frameworks, please refer to our dedicated policy explanations below.
Frequently Asked Questions
Returns & Refunds Policy
Delivery & Shipping Policy
BUILDING CODE COMPLIANCE C seals openings through fire barriers where mechanical services pass through
HELPS PREVENT FIRE SPREAD - capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000 F (538 C)
ONE PRODUCT, MANY USES C listed in hundreds of UL Firestop systems with up to 4-hour ratings
VARIETY OF APPLICATIONS - HVAC ducts and vents, pipes, blank openings, cables, through-penetrations, busways, combos, rated wall, floor and floor-ceiling assemblies and more
EASY AND CLEAN APPLICATION C with no mixing required and sag-resistant properties, it is simple to apply and doesn t make a mess

3M Fire Barrier Sealant CP 25WB+ is a one-component, latex-based, intumescent sealant that dries to form a monolithic firestop seal. This sealant also acts as a barrier to airborne sound transmission. As penetrants are exposed to fire, the intumescent property of this material allows the sealant to expand and help maintain a firestop penetration seal for up to 4 hours. This sealant is designed to help control the spread of fire, smoke and noxious gases before, during and after exposure to a fire when installed in accordance with a listed through-penetration or fire-resistive joint assembly system (STC-Rating of 54 when tested in a STC 54-rated wall assembly). 3M Fire Barrier Sealant CP 25WB+ firestops blank openings and penetrations passing through fire-rated floor, floor/ceiling or wall assemblies and other fire-rated interior building construction. This halogen-free sealant is capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000 F (538 C). We engineered this sag-resistant sealant to exhibit strong adhesion to a full range of construction substrates and penetrants. Applied with conventional caulking equipment, this gun-grade sealant offers an excellent caulk rate - no mixing is required. In addition, this water-based sealant is paintable as well as re-enterable and repairable, offering easy application and clean-up.

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