3M™ Fire Barrier Water Tight Sealant 1000 NS
3M™ Fire Barrier Water Tight Sealant 1000 NS
Advanced Firestop & Water Tight Silicone Sealant
As a trusted 3M™ distributor in Saudi Arabia, we provide advanced firestop solutions engineered to protect buildings and critical infrastructure from the spread of fire, smoke, toxic gases, and water.
- 3M™ Fire Barrier Water Tight Sealant 1000 NS is a high-performance, single-component, neutral-cure silicone sealant designed to maintain the integrity of fire-rated walls, floors, and penetration systems.
- This ready-to-use firestop sealant creates a durable, flexible, and watertight barrier that continues to perform under demanding environmental and fire exposure conditions.
- Its superior adhesion, excellent weather resistance, and long-term flexibility make it an ideal choice for commercial buildings, industrial facilities, data centres, hospitals, airports, oil & gas facilities, and other critical infrastructure projects across Saudi Arabia.
Key Features
Advanced Fire Protection
Provides up to 3 hours of firestop protection for through-penetration systems and up to 4 hours for fire-resistive joints.
Water tight performance
Meets UL W-Rating Class 1 requirements, helping prevent water leakage through penetrations and joints
Flexible & Durable
Accommodates ±31% joint movement while maintaining a reliable seal.
Superior Weather resistance
Offers excellent resistance to moisture, UV exposure, and environmental conditions after curing.
Smoke & Gas Containment
Helps restrict the passage of smoke and harmful gases before, during, and after a fire.
Strong Adhesion
Bonds effectively to a wide variety of construction materials.
Re-enterable & Repairable
Allows easy modifications for future cable or pipe installations.
Low VOC & Environmental friendly
Halogen-free and supports green building initiatives and LEED requirements.
Easy Application
Can be applied using standard caulking equipment, pneumatic dispensers, trowels, or putty knives.
Excellent Acoustic Performance
Reduces sound transmission with an STC rating of 56 in tested wall assemblies.
3M Fire Barrier 1000 NS Technical Specifications
| Property / Specification | Value / Detail |
| Color | Light Gray |
| Surface Burning Characteristics (ASTM E84 Mod) | Flame Spread: 0 Smoke Developed Index: 0 |
| Hardness (ASTM C661 Shore A) | 10-15 |
| STC Rating (ASTM E 90 and ASTM E 413) | 56 in a 56 rated wall |
| Tensile Strength | 85 psi (0.59 MPa) |
| VOC Less H₂O and Exempt Solvents* | <250g/L |
| Elongation at Break (ASTM D412) | 600% |
| Service Temperature | -60°F to 300°F (-51°C to 149°C) |
| Cure Details | Under typical cure rate conditions of 77°F (25°C) and 50% R.H., sealant becomes tack-free in about ten minutes, dry-to-touch in 30 to 60 minutes and obtains full-cure adhesion in 14–21 days. Full cure depends upon ambient conditions and volume of sealant. The typical cure rate is approximately 1/8 inch (3mm) per day. |
| Unit Volume | 10.1 fl. oz. tube (300mL), 20 fl. oz. sausage (591 mL), 4.5-gallon pail (17 L) |
*Meets the intent of LEED® VOC environmental quality requirement
Industrial Manufacturing Facilities
Hospitals and Healthcare Facilities
Residential Developments
Data Centres
Airports
Commercial Buildings
Educational Institutions
Oil & Gas Facilities
Power Generation Plants
Infrastructure Projects
Industries Served
Applications
Fire-Rated Walls & Floor Assemblies
Seals openings and joints in fire-rated walls and floors to maintain compartmentalization and prevent the spread of fire, smoke, and toxic gases between building areas.
Through-Penetration Firestopping Systems
Protects openings created when pipes, cables, ducts, and other services pass through fire-rated barriers, helping preserve the assembly's fire resistance rating.
Construction Joints (Dynamic & Static)
Provides a flexible seal for expansion, movement, and static joints, accommodating structural movement while maintaining fire and smoke protection
Pipe Penetrations
Firestops metallic, non-metallic, and insulated pipes passing through walls and floors, helping maintain the integrity of fire-rated assemblies.
Cable & Cable Tray Penetrations
Seals around electrical cables, cable bundles, and cable trays to prevent fire and smoke from spreading through service openings.
Mechanical Service Penetrations
Protects openings created by HVAC, plumbing, and other mechanical systems in commercial and industrial buildings.
Multi-Service Penetrations
Designed to seal complex openings containing a combination of cables, pipes, conduits, and other building services within a single penetration.
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