GSA Fire Seal Fire Rated Sealant – High Performance for Fire Protection and Acoustic Sealing

The GSA Fire Seal Fire Rated Sealant by CW Brands is a versatile, one-component acrylic sealant designed for sealing joints in both interior and vertical exterior applications. It provides fire resistance for up to 4 hours, making it ideal for fire-rated construction projects, including tilt-up construction, expansion joints, fire door frames, and service penetrations. Additionally, it serves as an effective acoustic sealant for drywall partitioning with a 56 STC rating.

Key Features

• Fire Rated up to 4 Hours: Tested to AS1530.4 standards, providing reliable fire resistance in various applications.
• Wide Joint Capability: Suitable for sealing joints up to 50mm wide, accommodating moderate movement of up to ±15%.
• Excellent Adhesion: Adheres well to most common building materials without the need for a primer, forming a durable, flexible bond.
• Paintable Finish: Can be painted with most water-based and synthetic paints to match surrounding surfaces.
• Durable and Flexible: Maintains its elastomeric properties and accommodates joint movement under normal conditions.
• Water-Based Formula: Allows application on damp surfaces and easy cleanup with water.
• UV and Mildew Resistant: Offers excellent resistance to UV exposure and mildew when a premium exterior acrylic finish is applied.

Specifications

• Fire Rating: Up to 4 hours (AS 1530 Part 4, 2014)
• Acoustic Rating: 56 STC for plasterboard partitioning (ASTM E413-87)
• Elongation at Break: 250% - 300% (ASTM D2370-82)
• Specific Gravity: 1.60 - 1.62
• Joint Movement Capability: ±15% (ASTM C-920-87)
• Service Temperature Range: -20°C to 90°C
• Open Time: Approx. 20 minutes at 23°C
• Packaging: Available in 300 ml cartridges and 600 ml sausages
• Colors: White and grey

Applications

• Fire Protection: Ideal for sealing fire door frames, service penetrations, and expansion joints in fire-rated structures.
• Acoustic Sealing: Used as an acoustic sealant in drywall partitioning to improve sound insulation.
• Tilt-Up Construction: Suitable for large joints in tilt-up construction projects, providing durable sealing and fire resistance.
• General Construction: Bonds well with concrete, masonry, and other building substrates, making it a versatile choice for various applications.

Limitations

• Not suitable for continuous immersion in water (e.g., swimming pools).
• Avoid using on exterior floors or decking expansion joints.
• Should not be applied in confined areas or when exposure to rain is expected within 24 hours.

Benefits

• Easy to Apply: Simple to tool and apply with excellent adhesion properties.
• Long-Lasting Performance: Retains flexibility and durability over time, ensuring consistent performance in a variety of environments.
• Non-Corrosive: Safe to use on metals without causing corrosion.

The GSA Fire Seal Fire Rated Sealant is a reliable solution for professionals in construction and building maintenance, offering excellent fire protection, acoustic performance, and flexibility. Whether you're working on a new build or renovation, this sealant ensures safety and durability where it matters most.