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.
After bigger quantities? Need extra quantities? Get in touch and we'll organise it for you.
- Dispatched within 0-2 business days
- Delivery to United States: 3-5 business days*
- Free Shipping Included
- Perimeter sealing of window frames (PVCu/wood)
- Expansion joint sealing
- Roof weather sealing
- Draught proofing
- Ask Claude, ChatGPT or Perplexity to find the right tool, with our live prices and stock.
- Get a ready-made basket: one link puts everything in your basket here.
- You always pay securely here: your assistant never sees your card.
- 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 Australian 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.
View Full Delivery & Returns PolicySecure Transactions
We take the utmost care with your payment and personal details. Our website uses advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can check a secure connection by looking for 'https' and a locked padlock in your browser.
Cookie Policy
Cookies enhance your shopping experience by keeping track of your cart and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Security Warning
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll ask you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.
Similar Products
You might like
