3M Fire Barrier Water Tight Sealant 1003 SL, Gray, 20 fl oz Sausage Pack, 12/Case

• Excellent caulk rate and sealant can be applied with conventional caulking equipment
• Exceptional weatherability for durability during construction
• Fire resistance tested for construction joint (including curtain wall) systems in accordance with ASTM E 1966 (UL 2079), ASTM E 2307
• Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Formulated as a re-enterable and repairable solution
• Halogen-free formula helps control spread of noxious gasses, smoke and flame
• Meets UL Water Leakage Test, W Rating (Class 1 requirements)
• Minimizes noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
• Neutral cure – delivers higher adhesion with very little odor
• Offers compression and extension capability of ±31% for dynamic and static construction joints
• Sealant is paintable with primer
• Self-leveling formula is optimal for horizontal applications, eliminating the need for tooling
• Single component sealer is ready to use with no mixing required

3M Fire Barrier Water Tight Sealant 1003 SL is a self-leveling silicone sealant firestop that creates a flexible seal and resists moisture across floors and other horizontal surfaces. This ready-to-use, single component neutral cure firestop is tested to ASTM and UL standards to help control the spread of fire, smoke and noxious gasses.

Proven Protection against Fire, Moisture and Noise
Ideal for horizontal surfaces, 3M™ Fire Barrier Water Tight Sealant 1003 SL provides up to 3-hour protection against the spread of fire, smoke and noxious gas when properly installed in tested and listed systems. Our silicone sealant is tested to stringent standards: it is perimeter fire barrier tested up to 3 hours in accordance with ASTM E 2307, firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) & CAN/ULC S115 and Fire Resistance tested for construction joint systems in accordance with ASTM E 1966 (UL 2079). It also resists moisture according to UL Water Leakage Test, W Rating - Class 1 requirements, minimizes noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly) and acts as a smoke seal for installations requiring the L-Rating. It meets the intent of LEED® VOC environmental regulations, and it meets International Building Code (IBC) as well as other key life safety building code requirements.

Recommended Applications:

• Dynamic and static construction joints
• Perimeter fire barrier system and curtain wall joints
• Firestop blank openings
• Penetrating items that pass through fire-rated floors

Delivering Benefits Right Out of the Container
This durable, flexible firestop sealant is also very easy to use. It is a single-component silicone sealer which can be applied using conventional caulking equipment with no mixing required. Its self-leveling formula virtually eliminates the need for tooling. The neutral cure silicone sealant cures through exposure to natural environmental humidity and provides excellent adhesion with very low odor. Once applied, 3M™ Fire Barrier Water Tight Sealant 1003 SL is re-enterable, repairable and exhibits excellent weathering during construction which cuts down on time and rework.

Reliable and Affordable Fire Protection
Effective and easy to install, 3M™ Fire Barrier Water Tight Sealant 1003 SL 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.

Trusted 3M Fire Barrier

The 3M Fire Barrier Water Tight Sealant 1003 SL offers reliable fire protection with its tested fire resistance. This gray sealant is designed to meet strict standards, including ASTM E 1966 and UL 2079, ensuring safety in construction joints and curtain wall systems.

Its firestop capabilities extend up to 3 hours, tested under ASTM E 814 and CAN/ULC S115. This makes the 3M 1003 SL an excellent choice for projects requiring certified fire protection solutions.

Flexible Sealant Format

This product comes in a 20 fl oz sausage pack, making it easy to use with conventional caulking equipment. The single-component formula requires no mixing, saving time and simplifying application on site.

The self-leveling silicone sealant is ideal for horizontal surfaces, eliminating the need for tooling. Its neutral cure formula also delivers strong adhesion with very low odor during installation.

Durable Weather Resistance

The gray 3M Fire Barrier Water Tight Sealant 1003 SL is built to withstand harsh weather conditions during construction. Its exceptional weatherability ensures the seal remains intact and effective over time.

Additionally, the sealant is re-enterable and repairable, allowing for easy maintenance without compromising its protective qualities. This durability helps reduce rework and project delays.

Noise And Moisture Control

Besides fire protection, this sealant minimizes noise transfer with an STC rating of 56 when tested in rated wall assemblies. It also meets UL Water Leakage Test Class 1 requirements, providing a watertight barrier.

Its halogen-free formula helps control the spread of noxious gases, smoke, and flame, enhancing safety in fire-rated floors and perimeter fire barrier systems.

Pack Count And Applications

The 3M Fire Barrier Water Tight Sealant 1003 SL is sold in cases of 12 sausage packs, each containing 20 fl oz. This packaging supports efficient use across multiple construction joints and firestop applications.

Recommended uses include dynamic and static construction joints, curtain wall joints, firestop blank openings, and penetrating items through fire-rated floors, making it versatile for commercial and industrial projects.