3M Fire Barrier Water Tight Sealant 1003 SL

3M™ Fire Barrier Water Tight Sealant 1003 SL is a self-leveling silicone firestop ideal for horizontal surfaces, providing up to 3-hour fire protection. It resists fire, smoke, and moisture while minimizing noise transfer.

Tested to ASTM and UL standards, it meets stringent safety codes, including IBC and LEED® VOC requirements.

This durable, neutral-cure sealant is easy to apply, re-enterable, and repairable, offering excellent adhesion and weather resistance.

Key Features:
Certified Fire Protection: Up to 3-hour firestop tested per ASTM E 814 (UL 1479) and CAN/ULC S115. Moisture Resistance: Meets UL Water Leakage Test, W Rating - Class 1. Noise Control: Reduces sound transfer with an STC rating of 56 in compliant assemblies. Easy Application: Self-leveling formula requires no mixing or tooling.

Flexible and Durable: Maintains performance in dynamic and static joints. Recommended Applications: Dynamic and static construction joints Curtain wall and perimeter fire barriers Firestop blank openings and floor penetrations Effective, reliable, and easy to use, 3M Fire Barrier Water Tight Sealant 1003 SL is the ideal choice for comprehensive firestop solutions.