3M™ Fire Barrier Silicone Sealant 2000+

Silicone-based firestop sealant offering high flexibility and up to 4 hours fire protection for both penetrations and dynamic joint systems.

Product Description

3M™ Fire Barrier Silicone Sealant 2000+ is an elastomeric, neutral-cure, single-component silicone sealant that cures upon atmospheric exposure to form a flexible, re-enterable firestop seal. It is formulated for dynamic and static construction joints and tested up to 4 hours in accordance with ASTM E 1966 (UL 2079) and ASTM E 814 (UL 1479), while also delivering smoke and sound attenuation. This water-tight sealant offers excellent durability and adhesion to a wide variety of substrates.

Recommended Applications

  • Dynamic and static construction joints
  • Firestop blank openings
  • Penetrations through fire-rated floor or wall assemblies

Key Benefits

  • Up to 4-hour fire resistance
  • Compression/expansion capability of ±13%
  • Water-tight and weather-resistant
  • Smoke and sound seal (STC 56 rated)
  • Excellent adhesion to most construction substrates
  • Low smoke developed index (0)
  • Easy to apply with standard caulking equipment
  • Meets LEED® VOC and IBC code requirements

Storage & Packaging

  • Container Sizes: 4.5 fl oz, 20 fl oz (US); 17 L, 591 ml (Metric)
  • Forms: Cartridge, Drum
  • Color: Light Gray

Product Properties

Property Specification
Brand 3M™
Composition Silicone
Container Size (US) 4.5 fl oz, 20 fl oz
Container Size (Metric) 17 L, 591 ml
Fire Resistance Type Ablative
Hardness 40 Shore A
Max Service Temp (Celsius) 150 °C
Max Service Temp (Fahrenheit) 302 °F
Min Service Temp (Celsius) -40 °C
Min Service Temp (Fahrenheit) -40 °F
Movement Capability 13%
Product Color Light Gray
Product Form Drum, Cartridge
Product Type Sealant
STC Rating Up to 56 in a STC Rated Wall
Smoke Developed Index 0
Smoke Seal Yes
Water Activated Yes
Water-tight Yes