DOWSIL™ FIRESTOP 700 Sealant is a one-part, neutral-cure silicone sealant that is used to help prevent the spread of fire, smoke, and toxic gases in vertical and horizontal construction joints. It is designed for use in a range of construction applications, including floors, walls, and ceilings. The sealant is specifically formulated to resist high temperatures and has a fire rating of up to 4 hours when used in accordance with the manufacturer's instructions. It also meets a range of international standards, including ASTM E814 and UL 1479.
Features & Benefits
- Fire protection: It provides up to 4 hours of fire protection when used in accordance with the manufacturer's instructions.
- Smoke and gas protection: The sealant helps prevent the spread of smoke and toxic gases during a fire, which can help protect building occupants.
- Adhesion: It adheres well to a variety of substrates, including concrete, masonry, gypsum, and metal.
- Versatility: The sealant can be used in vertical and horizontal construction joints and in a wide range of construction applications.
- Durability: Once cured, FIRESTOP 700 Sealant forms a flexible and durable seal that is resistant to weathering, aging, and vibration.
- Easy application: The sealant is easy to apply and can be tooled and smoothed with minimal effort.
- Compatibility: It is compatible with other fire protection systems, such as fire alarms and sprinklers, and does not emit harmful substances during or after installation.
- Regulatory compliance: The sealant meets a range of international standards, including ASTM E814 and UL 1479, which ensures that it has been tested and verified for its effectiveness in fire protection applications.
Applications
Some of the standard applications of DOWSIL™ FIRESTOP 700 Sealant include:
- Through-penetration seals: These can be used to seal penetrations, such as pipes, conduits, and ducts, that pass through walls and floors, helping to prevent the spread of fire and smoke.
- Construction joints: The sealant can be used to seal construction joints, such as those between floors and walls or walls and ceilings, helping to prevent the spread of fire, smoke, and toxic gases.
- Curtain walls: They can be used in curtain wall systems to provide fire protection between the exterior and interior of a building.
- Electrical and data communication cables: The sealant can be used to seal cable penetrations, helping to prevent the spread of fire and smoke in areas where electrical or data communication cables are present.
Technical Specifications and Standards
- Composition: One-part, neutral-cure silicone sealant
- Cure mechanism: Moisture-cured
- Application temperature: 5°C to 40°C (41°F to 104°F)
- Service temperature: -40°C to 204°C (-40°F to 400°F)
- Tack-free time: 30 minutes at 25°C (77°F) and 50% relative humidity
- Cure time: 7 days at 25°C (77°F) and 50% relative humidity
- Fire rating: Up to 4 hours (when used in accordance with the manufacturer's instructions)
- Movement capability: ± 25%
- Shelf life: 12 months from date of manufacture.
- ASTM E814-19a: Standard Test Method for Fire Tests of Penetration Firestop Systems
- UL 1479: Fire Tests of Through-Penetration Firestops
- FM 4991: Approval Standard for Class 1 Roof Covers
- ISO 11600: Building Construction - Jointing Products - Classification and Requirements for Sealants
- EN 1366-4: Fire Resistance Tests for Service Installations - Penetration Seals
- AS1530.4-2014: Fire Resistance Tests of Elements of Construction for Buildings - Part 4: Penetration Firestop Systems
Fire Ratings
The fire ratings of DOWSIL™ FIRESTOP 700 Sealant are dependent on the system in which it is installed, such as the type of penetration, substrate material, and assembly configuration. The sealant can be used in both horizontal and vertical applications and is compatible with a range of substrates, including concrete, masonry, gypsum, and metal. When exposed to fire, the sealant expands to create an intumescent barrier that helps prevent the spread of smoke and toxic gases through construction joints and penetrations.
Joint Design
