Skip to content
Contact About Us Help Guides & Information
⚡ Rock Bottom Prices. Maximum Choice.⚡
⚡ Rock Bottom Prices. Maximum Choice.⚡
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin
Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml Everbuild Sika - RockBottom Northamptin

Everbuild Sika Everflex® 450 Builders Silicone Sealant Oak 300ml

by Everbuild Sika
SKU EVB450OAK-TOOLBANK
£7.99 - £7.99
£7.99
£7.99 - £7.99
£7.99
Availability:
in stock, ready to be shipped

Est Delivery 3 - 7 Working Day

Shipping information


We work hard to get your order out quickly and securely.

  • Fast Dispatch – Orders are processed promptly once placed.
  • Trusted Couriers – We use reliable delivery partners.
  • Clear Costs – Shipping is calculated at checkout, based on size and weight.
  • Peace of Mind – We’ll keep you updated every step of the way.
Returns & warranty
  • 28 Days to Return – If it’s not right, just bring it back in its original condition.
  • Quick Refunds – Once we’ve checked your return, we’ll refund you promptly.
  • Clear & Fair – Some items (like cut-to-size or opened packaging) can’t be returned, but we’ll always let you know upfront.

Everbuild Everflex® 450 Builders Silicone Sealant is a low modulus, oxime cure RTV silicone sealants that adhere to a wide range of both porous and non-porous surfaces without the need for priming. Conforms to BS5889. SILICONE 450 is formulated as a high viscosity grade to give excellent tooling properties. Cures quickly to provide a permanently flexible, high strength waterproof seal.

Remains permanently flexible, forming a tight rubber-like seal. With a faster curing time than conventional low mod sealants with an extremely low dirt pick up. They are also flexible and waterproof giving a good sound seal for a professional finish.

Ideal for perimeter pointing internally and externally around PVCu / wood and all other window frames, sealing and as an adhesive onto PVCu, plastic trims and components. Suitable as an expansion joint sealant or weather sealing and ideal for joint sealing to pre-formed panels, sealing soft metals such as lead, copper and zinc, general glazing sealing, draught proofing, including repair work over existing sealant, glass to glass and glass to aluminium sealing and roof weather sealing applications.

1 x Everbuild Everflex® 450 Builders Silicone Sealant Oak 300ml

🔨 Trade Prices for Everyone

Why pay more? We keep our prices rock-bottom so whether you’re a trade professional or DIYer, you always get the best deal.

🏠 Local & Independent


We’re Northampton’s trusted family-run store, supporting local people with great products and honest service.

🚚 Easy Pickup or Local Delivery

Order online and collect in-store, or get heavy items like blocks and cement delivered straight to your site.

👍 Friendly, Helpful Service

Our staff know their stuff — whether it’s building materials, DIY or garden, we’re here to help you get the job done.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare