Sika Everbuild Hybriflex FR 4hr Fire Rated Sealant GREY 600ml 835016 Box of 12

SIKA Everbuild Tecnic Hybriflex FR 4-Hour Fire Rated Joint Sealant – 600ml Foils (Box of 12 Grey)

Rebranding: From Everbuild to Sika as part of the transition to the Sika product range

MPN: FPHYBFRGY

Sika Code: 835016

Former Code: 501991

Colour: Grey

Size: 600ml Foils (Box of 12)

Product Overview:

The SIKA Everbuild Tecnic Hybriflex FR 4-Hour Fire Rated Joint Sealant – Grey is a premium-grade, chemically curing hybrid polymer sealant designed for demanding environments where both movement capability and fire resistance are critical. Rebranded under the Sika name, this professional product combines the flexibility of silicone with the strength of polyurethane, delivering outstanding adhesion, durability, and performance.

Tested and certified to EN1366 Part 4 (Warrington Fire Certificate), Hybriflex FR provides up to 4 hours of fire resistance in approved joint configurations. This makes it the ideal sealant for high-traffic and safety-critical applications, such as warehouses, factories, garage forecourts, sports arenas, airports, and shopping centres.

Its hybrid curing technology ensures excellent resistance to abrasion, fuels, oils, and chemicals, while maintaining flexibility and a reliable, watertight seal even in heavy-duty environments.

Key Features and Benefits

• Fire Rated for Safety: Provides up to 4 hours of certified fire resistance in tested joint configurations (EN1366 Part 4).

• Hybrid Polymer Formula: Combines the best performance traits of silicone and polyurethane sealants.

• Exceptional Durability: Ideal for high-traffic joints and industrial flooring applications.

• Chemical and Petrol Resistant: Resistant to 10% dilute acids, alkalis, and most common solvents.

• Abrasion Resistant: Withstands heavy use in floor joints and structural expansion areas.

• Flexible Performance: Accommodates ±20% movement for long-term joint integrity.

• Good Slump Resistance: Suitable for both vertical and horizontal joints.

• Over-paintable: Can be painted once cured using most conventional coatings testing is always recommended.

• Moisture Tolerant: Can be applied to damp or wet surfaces without affecting adhesion.

• Non-Hazardous: Solvent-free and non-toxic, safe for professional application.

Typical Applications

• High-Traffic Floor Joints: Warehouses, factory floors, service bays, garage forecourts, and industrial buildings.

• Fire-Resistant Construction Joints: Where fire integrity is required in floors, walls, and service areas.

• Precast and Concrete Structures: For sealing concrete slabs, expansion joints, and construction interfaces.

• Sports and Retail Complexes: Designed for joint sealing in stadiums, shopping centres, and arenas.

• Cladding and Façade Joints: Ensures watertight sealing for exterior and interior structural elements.

Technical Specifications

• Product Type: Hybrid polymer-based sealant and adhesive

• Packaging: 600ml foil sausage (Box of 12)

• Colour: Grey

• Fire Rating: Up to 4 hours (EN1366-4 Certified)

• Movement Capability: ±20%

• Cure Type: Moisture-curing chemical reaction

• Resistance: Excellent resistance to fuels, chemicals, and abrasion

• Temperature Range: -40°C to +80°C (once cured)

• Application Temperature: +5°C to +40°C

• Coverage: Approximately 10 linear metres per foil (6mm x 6mm bead size)

How to Use

Surface Preparation:

• Ensure surfaces are sound, clean, and free from oil, dust, or contaminants.

• Remove old joint sealant residues if present.

• For best results, use a suitable primer on porous substrates.

Application:

1. Insert the 600ml foil into a compatible heavy-duty sealant gun.

2. Cut the nozzle at a 45° angle to the desired bead size.

3. Apply the sealant evenly into the joint, ensuring full contact with both sides.

4. Tool the surface within 10–15 minutes for a smooth finish and optimal adhesion.

5. Allow to cure completely before subjecting to heavy load or fire exposure conditions.

Curing Time:

• Skin forms in approximately 30–60 minutes (depending on humidity and temperature).

• Fully cured in 24–48 hours.

Compliance and Certification

• Fire Resistance: Tested to EN1366-4, providing up to 4 hours fire integrity.

• Health & Safety: Solvent-free, non-toxic, and low odour formulation.

• Environmental Resistance: Excellent weather, UV, and chemical resistance ensures long-term durability.

FAQs – Sika Hybriflex FR Fire Rated Joint Sealant

• 1. What is the fire resistance rating?
  Certified for up to 4 hours of fire resistance when used in tested joint configurations (EN1366 Part 4).

• 2. Where can it be used?
  Suitable for high-traffic industrial floors, wall joints, and fire-rated construction projects.

• 3. Can it be applied on damp surfaces?
  Yes, it can be applied to damp or wet surfaces without compromising adhesion.

• 4. Is it paintable?
  Yes, once cured it can be overpainted with most conventional coatings.

• 5. How flexible is it?
  Accommodates up to ±20% joint movement, maintaining strong adhesion and elasticity.

• 6. Is it resistant to fuel and chemicals?
  Yes, it has excellent resistance to petrol, oils, dilute acids, alkalis, and many solvents.

• 7. Is it suitable for vertical applications?
  Yes, it has excellent slump resistance, allowing application on vertical or inclined joints.

• 8. What is the curing time?
  Typically 24–48 hours depending on bead size and environmental conditions.

• 9. What are the available colours?
  Grey is the standard colour supplied in 600ml foil sausages.

• 10. Is this product solvent-free?
  Yes, Hybriflex FR is completely solvent-free and non-hazardous to health.

Why Choose SIKA Everbuild Tecnic Hybriflex FR?
Sika Hybriflex FR is the ultimate sealant for professionals requiring fire-rated performance combined with industrial durability. Its hybrid polymer formulation allows it to outperform traditional silicone and polyurethane sealants by offering superior adhesion, chemical resistance, and flexibility—all without compromise.

This fire-rated joint sealant is trusted across commercial, industrial, and public buildings where fire safety, strength, and reliability are paramount. Whether sealing expansion joints, precast panels, or industrial floor joints, Hybriflex FR provides lasting performance in even the harshest environments.

Recommended Primer for concrete if required Sikaflex Primer 3N