Everbuild Everflex 450 Builders Silicone Sealant, Oak, 300ml
High-performance silicone sealant for waterproofing and weatherproofing, ideal for expansion joints, glazing, and metal sealing.
The Everbuild Everflex 450 Builders Silicone Sealant is a high-performance, low modulus, oxime-cure RTV silicone sealant that adheres to both porous and non-porous surfaces without the need for priming. Conforming to BS5889, this sealant is formulated as a high-viscosity grade for excellent tooling properties. It cures quickly to provide a permanently flexible, high-strength, waterproof seal.
Its key features include:
- Permanently flexible - maintains elasticity to form a tight, rubber-like seal.
- Faster curing time - compared to conventional low-modulus sealants.
- Low dirt pick-up - keeps surfaces cleaner for longer.
- Waterproof and sound-sealing - ensures a professional finish.
Ideal for perimeter pointing internally and externally around PVCu and wood window frames, as well as for sealing PVCu, plastic trims, and components. Suitable for expansion joint sealing, weatherproofing, and joint sealing on pre-formed panels. Additionally, it works well for sealing soft metals such as lead, copper, and zinc, general glazing, draught-proofing, glass-to-glass and glass-to-aluminium sealing, and roof weatherproofing applications.
Includes 1 x Everbuild Everflex 450 Builders Silicone Sealant (Oak, 300ml).
Need larger quantities? Need additional quantities? Get in touch and we'll arrange it for you.
- Shipped within 0-2 business days
- Shipping to United States: 3-5 business days*
- Free Shipping Included
- Perimeter pointing around PVCu/wood window frames
- Sealing PVCu and plastic trims
- Expansion joint sealing
- Weatherproofing applications
- 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: Oak
- Modulus: Low
- Curing Time: Faster than conventional low-mod sealants
- Standard: BS5889 compliant
- Properties: Waterproof, permanently flexible, sound-sealing
- Viscosity: High grade for easy tooling
- Pack Size: 300ml
- Weight: 374g
Always follow local regulations and product guidance.
Free standard delivery on US mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For defective 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 verify 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
