3M™ Fire Barrier Silicone Sealant 2000+ is an elastomeric, ready-to-use, single-component, neutral-cure silicone sealant that cures upon exposure to atmospheric humidity. We designed this sealant to form a flexible firestop seal that also acts as a barrier to airborne sound transmission. This product is firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115.

Tough and Flexible Firestop Sealant
Formulated to provide up to 4-hour fire protection, 3M™ Fire Barrier Silicone Sealant 2000+ is an elastomeric, single-component, neutral-cure silicone sealant. This ready-to-use sealant cures upon exposure to atmospheric humidity and forms a flexible firestop seal for construction joints and through penetrations in fire-rated assemblies. 3M™ Fire Barrier Silicone Sealant 2000+ is firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115, as well as fire resistance tested up to 4 hours for construction joint systems in accordance with ASTM E 1966 (UL 2079). We engineered this silicone sealant to provide ±13% compression and extension capability. This flexible firestop sealant is re-enterable and repairable, exhibits exceptional adhesion and bonds to most common construction materials and provides excellent weatherability during construction.
Recommended Applications


Dynamic and static construction joints
Firestop blank openings
Penetrating items that pass through fire-rated floor or wall assemblies


Create a Strong Firestop Shield
When properly installed, 3M™ Fire Barrier Silicone Sealant 2000+ provides up to 4-hour protection against the spread of fire, smoke and noxious gas before, during and after exposure to a fire in tested and listed systems. In addition, this product acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly) and helps create a smoke seal for installations requiring the L-Rating. This product also meets the intent of LEED® VOC environmental regulations, International Building Code (IBC) and other key life safety building code requirements.

Reliable and Affordable Fire Protection
Effective and easy to install, 3M™ Fire Barrier Silicone Sealant 2000+ is part of our family of fire protection products that offer the broadest, long-lasting solutions for a variety of commercial, industrial and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Find the solution you need from the industry-preferred line of fire protection products.

• Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Fire resistance tested up to 4 hours for construction joint systems in accordance with ASTM E 1966 (UL 2079)
• Engineered to provide optimum adhesion to a wide variety of construction materials
• Compression and extension capability of ±13%
• Offers excellent caulk rate and applied with conventional caulking equipment
• Durable sealant provides excellent weatherability during construction
• Formulated as a re-enterable and repairable solution

• Color: Light Gray
• Part Number: 2000+10.3OZ
• Product Type: Sealant