INCA Fire Barrier Caulk

INCA INSS1440 Fire Barrier Caulk is a high-performance, acrylic-based firestop sealant engineered to seal gaps and penetrations in fire-rated assemblies. Designed for critical fire protection applications, it delivers up to 3 hours of fire resistance while maintaining excellent durability and adhesion across various substrates.

Key Features & Benefits

High-Performance Acrylic Formula

• Acrylic-based composition ensures strong adhesion to multiple construction materials.

• Flexible sealing performance accommodates joint movement without compromising integrity.

• Easy to apply and finish for professional installation results.

Up to 3-Hour Fire Rating

• Effectively restricts the spread of flames, smoke, and hot gases through penetrations and joints.

• Helps maintain the fire-resistance rating of walls and floors during fire exposure.

• Provides valuable evacuation and emergency response time in critical situations.

Exceptional Radiation Resistance

• Engineered to withstand neutron and gamma radiation exposure up to 1×10⁶ Gy (1×10⁸ rad) without loss of firestop performance.

• Suitable for specialized environments such as nuclear facilities, laboratories, and high-radiation industrial applications.

Applications

INSS1440 Fire Barrier Caulk is ideal for a wide range of firestopping applications, including:

• Electrical Penetrations – Sealing around cables, cable trays, and conduits.

• Mechanical Penetrations – Firestopping around pipes, ductwork, and service openings.

• Wall & Floor Joints – Sealing construction joints, expansion joints, and structural gaps.

Installation Guidelines

Surface Preparation

Ensure all surfaces are clean, dry, and free from dust, oil, grease, or loose debris before application.

Application

• Apply using a standard caulking gun.

• Tool the sealant smoothly to ensure complete contact and proper adhesion.

Curing

Allow sufficient curing time as per manufacturer recommendations before exposure to fire or demanding service conditions.

Reliable Performance in Extreme Conditions

INSS1440 maintains its firestop integrity even under extreme radiation exposure, making it a dependable solution for critical infrastructure and high-risk environments where both fire protection and radiation resistance are essential.

Specifications Summary