Fire Protection Products-Through Penetration Firestops

By October 19, 20213M, All Products, Products
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Effectively fill spaces caused by pipes and cables traveling between walls with 3M’s through penetration products. Whether you need preformed plugs or the flexibility of expanding foam, sealant, or moldable putty, 3M has you covered. 3M products are designed with a focus on easy application and excellent adhesion—because when it comes to fire protection, there’s no room for doubt.

Fire Barrier Rated Foam FIP 1-Step

This ground-breaking firestop foam stays put in vertical and horizontal applications without running or sagging. Because it’s a one-step application, there’s less product to order, keep track of and haul. Even complex firestop installations—like cable bundles, conduit banks, and cable trays—can be finished more than 3X faster, saving time and money. It’s UL Listed for a broad range of applications and meets the International Building Code for passive fire protection


Fire Barrier Sealant CP 25WB+

3M™ Fire Barrier Sealant CP 25WB+ is a high-performance, intumescent latex-based sealant offering outstanding fire performance plus a non-halogen formula. Approved for the majority of caulk through penetration systems.

  • Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479)
  • Acoustic barrier: STC-Rating of 54 when tested in an STC 54-rated wall assembly
  • Provides L-Rating (smoke seal)
  • Water-based: easy cleanup and routine disposal with no special handling
  • Intumescent: expands when heated to seal around items consumed by fire
  • Re-enterable/repairable
  • Halogen-free and no-sag formulation
  • Over 600 tested and listed systems
  • One-part system: no mixing or measuring required
  • Fast-drying: tack-free in approximately 10–15 minutes
  • Paintable (best results obtained after 72 hour cure)
  • Red color widely recognized as a firestop for inspections
  • High caulk rate: 1000g/min. with 1/4 in. nozzle opening
  • Documented aging properties

Fire Barrier Pass-Through Devices

3M™ Fire Barrier Pass-Through Devices are a line of integrated firestopping devices that create a fire-proofed dedicated space for voice, data, telecom wires, and pipes. Available in a variety of shapes and sizes. Mounting accessories and foam replacements sold separately.

  • Firestop tested for up to 4 hours in accordance with ASTM E 814 (UL 1479)
  • One-piece, hinged metal enclosure makes installations fast and easy
  • Blank to multiple penetrants tested (0 to 100% fillable)
  • Red color: easy to identify as a fire-rated device during inspection
  • Stackable for multiple penetrations (square devices)
  • Warning labels included on device
  • UL classified: meets code requirements
  • Re-enterable for addition and removal of penetrants

Fire Barrier Composite Sheet CS-195+

The intumescent sheet is used to firestop large openings. Seals penetration against the flame spread, smoke, and toxic gases. This composite sheet has multiple applications, including blank openings, through penetrations of multiple cable, pipe ducts, bus ducts, and cable trays. The fire-resistive intumescent sheet is bonded on one side to a layer of 28-gauge galvanized steel. The other side is reinforced with hexagonal-shaped steel-wire mesh and covered with an aluminum foil scrim.

  • Firestop tested for up to 4 hours in accordance with ASTM E 814 (UL 1479)
  • Intumescent (expands with heat) to form a hard char that tightly seals penetrations against flame spread, smoke and toxic gases
  • Multiple applications: through-penetration firestop, heat shield and firebreak protection
  • UL-classified: meets all code requirements
  • 100% solids
  • Lightweight: easy to handle, just cut and form to desired shape
  • Re-enterable for new or retrofit installations
  • Easy to fasten: bolt-punch or drill-through
  • No mixing or damming: installs easily with screws or anchor bolts
  • Versatile: can be cut to fit irregular shapes
  • Thermally conductive: allows unwanted heat build-up to escape
  • Easy to install using common trade tools

Fire Barrier Moldable Putty Stix MP+

A one-part, ready-to-use, re-enterable, intumescent putty that can be easily formed to firestop through penetrations and blank openings in fire-rated assemblies. Often used to fill voids in large openings and/or complex firestop systems.

  • Up to 4-hours fire ratings per ASTM E 814 (UL 1479)
  • Provide draft and cold smoke seal
  • Help reduce noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
  • Noncorrosive to metal and compatible with synthetic cable jackets
  • Will not dry out or crumble, re-enterable

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