Everbuild Sika Everflex 450 Silicone Sealant, Grey, 300ml
Professional-grade silicone sealant for waterproofing, glazing, and weather sealing. Fast-curing & BS5889 compliant. 300ml.
The Everbuild Sika Everflex® 450 Builders Silicone Sealant is a premium low modulus, oxime cure RTV silicone sealant designed for professional and DIY use. It adheres effortlessly to both porous and non-porous surfaces without requiring a primer, making it versatile and convenient. Conforming to BS5889, this high-viscosity sealant offers excellent tooling properties and cures quickly to form a permanently flexible, waterproof, and high-strength seal.
One of its standout features is its low dirt pick-up, ensuring a cleaner appearance over time compared to conventional sealants. Once cured, it forms a tight, rubber-like seal that remains flexible, accommodating movement without cracking or losing adhesion. This makes it ideal for applications where durability and longevity are critical.
Applications
- Perimeter pointing: Suitable for use around PVCu, wood, and other window frames, both internally and externally.
- Expansion joint sealing: Perfect for weather sealing and joint sealing on pre-formed panels.
- Glazing and metal sealing: Works well for sealing soft metals like lead, copper, and zinc, as well as glass-to-glass and glass-to-aluminium applications.
- Roof weather sealing: Provides a reliable waterproof barrier for roofing applications.
- Draught proofing: Effective for sealing gaps to improve energy efficiency and reduce draughts, including over existing sealant.
Each tube contains 300ml of grey silicone sealant, ensuring ample coverage for multiple jobs.
- Perimeter sealing around PVCu & wood window frames
- Expansion joint sealing
- Sealing pre-formed panels
- Glazing (glass-to-glass, glass-to-aluminium)
- Material: Low modulus oxime cure RTV silicone
- Curing: Fast curing with permanent flexibility
- Finish: Waterproof, high-strength seal
- Dirt Pick-Up: Extremely low
- Conformity: BS5889 compliant
- Colour: Grey
- Volume: 300ml
- Weight: 368g
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.
