Sika Everbuild Sikacryl 620 Fire Sealant 300 Intumescent 380ml White Grey

Sika Everbuild Sikacryl 620 Fire Sealant 300 Intumescent 380ml White Grey

Single Tubes Option:

300WE White - 486194

300GY Grey - 486192

Everbuild Fire Sealant 300 is soon to be renamed to Sika Sikacryl 620 Fire Sealant white 835254 Grey 835256 380ml

The Sika Everbuild Sikacryl 620 Fire Sealant 300 Intumescent Fireseal is a high-performance, professional-grade sealant designed to provide effective fire protection and sealing in critical applications. Available in White and Grey, this 380ml cartridge is formulated to expand in response to heat, creating a fire-resistant barrier that helps contain fire and smoke for up to 4 hours, Perfect for sealing gaps, joints, and service penetrations in fire-rated walls and floors, this intumescent fire sealant is essential for maintaining the integrity of fire protection systems. Its flexible, acrylic-based formula ensures strong adhesion to a wide range of materials, making it suitable for both new construction and retrofit projects.

Sika Everbuild Sikacryl 620 Fire Sealant 300 Fireseal 380ml is a 4 hour rated acrylic intumescent sealant gives a firm & flexible seal to joints in a variety of fire rated structures and is tested to Warrington Fire Research Report No.181967, In suitably designed joints will resist the passage of fire for up to 4 hours, the selected fillers used in this formulation also make it suitable for use as an acoustic sealant, Everbuild Tecnic Fire Sealant 300 When exposed to heat swells greater than 3 x its original size, Creates a char that will resist the passage of fire for up to 4 hours, Ideal for use around doors, windows, pipes, and service penetrations, this advanced fire sealant adheres effectively to a wide range of materials, including wood, concrete, metal, and masonry. Its quick-skinning formula allows for easy application and a smooth finish, making it suitable for both internal and external environments. Whether you're sealing linear gaps, movement joints, or service voids, this acrylic intumescent ensures peace of mind with its reliable performance in critical fire-rated applications. Perfect for professionals and DIY users alike, this durable sealant combines safety, durability, and versatility for long-term protection and compliance with fire safety regulations.

Sikacryl 620 Features and Benefits:

• Intumescent Fire Protection: Expands in response to heat, sealing gaps and providing up to 5 hours of fire resistance.
• Available Colours: Choose between White and Grey to match your application for a clean, professional finish.
• Flexible and Durable: Accommodates joint movement without cracking or losing adhesion.
• Excellent Adhesion: Bonds effectively to wood, concrete, brick, metal, and other common construction materials.
• Paintable Finish: Can be overpainted once cured to blend seamlessly with the surrounding area.
• Professional Quality: Trusted by contractors and tradespeople for compliance with fire safety standards.

Sika Sikacryl 620 Applications:

• Fire-Rated Joints:

  • Seal gaps and joints in fire-rated walls, floors, and partitions to maintain fire resistance according to current fire regulations

• Service Penetrations:

  • Seal around pipes, ducts, and cables that pass through fire-rated constructions.

• General Use:

  • Ideal for sealing expansion joints and gaps in areas where fire protection is required.

Basic How to Use:

1. Prepare the Surface: Ensure the area is clean, dry, and free from dust, grease, and debris.
2. Cut the Nozzle: Trim the nozzle to your desired bead size and attach it securely to the cartridge.
3. Load the Cartridge: Insert the cartridge into a standard sealant gun.
4. Apply the Sealant: Dispense a smooth, even bead along the joint or gap, ensuring complete coverage.
5. Finish the Sealant: Smooth the bead with a finishing tool or damp cloth for a clean, professional finish.
6. Allow to Cure: Let the sealant fully cure before exposing it to stress or painting.

Sika Everbuild Sikacryl 620 Fire Sealant 300 FAQs:

How does the sealant provide fire protection?
The intumescent formula expands when exposed to heat, creating a fire-resistant barrier that helps contain fire and smoke,  When exposed to heat swells greater than 3 x its original size, Creates a char that will resist the passage of fire for up to 4 hours.

Can it be painted over?
Yes, once cured, the sealant can be overpainted with water-based or synthetic paints.

Is it suitable for exterior use?
This sealant is primarily designed for interior fire protection applications. For exterior use, consult the technical specifications or consider a weatherproof alternative.

What materials does it bond to?
The sealant adheres to wood, concrete, brick, metal, plasterboard, fireboard and other common construction materials.

What is the fire resistance rating?
It provides up to 4 hours of fire resistance, depending on the joint configuration and application.

The Sika Everbuild Sikacryl 620 Fire Sealant 300 Intumescent 380ml is an essential product for maintaining fire safety in residential, commercial, and industrial projects. Its intumescent properties, excellent adhesion, and professional-grade performance make it a reliable choice for critical fire-rated sealing applications. Choose White or Grey for a seamless, fire-resistant finish that prioritizes safety without compromising aesthetics. 

Sikacryl 620 Fire Sealant 300 Official Information

Sika Everbuild Sikacryl 620 Fire Sealant 300 Technical Data Sheet

Sika Everbuild Sikacryl 620 Fire Sealant 300 MSDS Safety Data Sheet

Sika Everbuild Sikacryl 620 Fire Sealant 300 DOP Declaration of Performance

Manufacturer Everbuild Fire sealant 300 Product Page

All Fireplace and Heat Resistant Products