Everbuild Sika Everflex® 450 Builder's Silicone Sealant Clear 300ml
14-day returns on all eligible orders
Contact us within 14 days of receiving your order to request a return.
Shipping information
Orders are picked, packed and dispatched from our Northampton warehouse.
- Free delivery to mainland UK addresses on orders of £40 or more.
- Orders under £40, and orders to Northern Ireland, have a delivery charge, shown at checkout before you pay.
- You will get an email with your tracking number once your order has shipped.
Full details are in our Shipping Policy.
Returns & warranty
Changed your mind? You can return an online order within 14 days of receiving it. Please contact us first for return instructions, then you have 14 days to send the goods back.
- Items must be unused, complete and in their original condition, with all accessories, instructions and original packaging.
- You arrange and pay for the return postage on change-of-mind returns. We refund the price of the item plus our standard delivery charge.
- Damaged in transit? Let us know within 48 hours of delivery - photos help.
- Faulty or wrong item? Contact us before sending anything back. Faulty goods are covered by your statutory rights.
Your statutory rights are not affected. Full details are in our Refund Policy, or email onlinesales@nn4online.co.uk.
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 Clear 300ml