Everbuild Everflex 450 Builders Silicone Sealant, White, 300ml
High-strength Everbuild Everflex 450 builders silicone sealant for waterproof, flexible sealing. BS5889 compliant. 300ml.
The Everbuild Everflex® 450 Builders Silicone Sealant is a premium low modulus, oxime cure RTV silicone sealant that adheres to both porous and non-porous surfaces without priming. Conforming to BS5889, this high-viscosity sealant offers excellent tooling properties and cures quickly to form a permanently flexible, waterproof seal.
Its unique formulation ensures low dirt pick-up, maintaining a clean appearance while delivering superior flexibility and waterproofing for professional results. Unlike conventional low modulus sealants, it cures faster and remains durable in various conditions.
Key Features:
- No primer required for adhesion
- High viscosity for easy application and smooth tooling
- Faster curing time than standard sealants
- Low modulus for flexibility and movement accommodation
- Waterproof and weather-resistant
- Excellent adhesion to PVCu, wood, metals, and glass
Applications:
Suitable for perimeter sealing around window frames, expansion joints, roof weather sealing, and general glazing. Also ideal for repairing existing sealant and draught-proofing in both internal and external building applications.
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Perimeter sealing of window frames (PVCu/wood)
- Expansion joint sealing
- Roof weather sealing
- Draught proofing
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- Material: Oxime cure RTV silicone
- Colour: White
- Cure Type: Low modulus
- Volume: 300ml
- Viscosity: High
- Certification: BS5889 compliant
- Weight: 472g
- Special Feature: Primerless adhesion
- Special Feature: Fast curing
- Flexibility: Permanent
- Waterproofing: Yes
- Dirt Pick-Up: Minimal
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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