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Product Details

High performance, tested to the extremes in all weathers.
Pressure washer tested to 1,400 psi. EN1026 air tightness tested. Resists UV and mould. Excellent flexibility. Neutral cure.

Technical Specification
Brand Evo-Stik
Colour by dominance Brown
Video click here
Volume (L) 0.31
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm
Due to temporary service restrictions our estimated delivery time is currently 2-3 business days
£5 Free
Turbo usually Next Business Day before 12 noon Temporarily unavailable £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 9pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Evo-Stik Weatherlock Frame Silicone 310ml Brown is rated 4.4 out of 5 by 12.
Rated 1 out of 5 by from One very frustrated user Bought this clear silicone product to seal a conservatory roof with polycarbonate panels to a butyl rubber bead on a UPVC strut which was allowing water to ingress. The claim is as follows:- 'EVO-STIK Weather Lock is our best ever frame sealant. In fact, when it comes to withstanding extreme weather conditions, no other frame sealant comes close. It's been tested to the extremes to ensure excellent performance in all weather conditions. The highly flexible, neutral cure sealant is pressure washer tested to 1400 psi at 80°C, meaning there’s no risk of water ingress around the frame. It’s also tested to EN1026 for airtightness – helping to lock cold out and keep heat in. It is CE marked for frame and glazing, and offers excellent mould resistance and UV protection to prevent cracking and discolouration. Available in four popular colours; white, clear, brown and anthracite.' What they don't say, until you buy it and in very small text, is that it isn't suitable for PE, PP, PC, PMMA, PTFE and other soft plastics, neoprene and bituminous substrates. My fault for using it as it doesn't stick to polycarbonate (PC), takes ages to cure and I'll have to take it all off and go and buy something else which will work. By the way Evo-stik, it's also incorrectly labelled as the volume isn't shown - see Weights and Measures (Packaged Goods) Regulations 2006 (SI 2006/659).
Date published: 2020-03-29
Rated 5 out of 5 by from Easy to apply Standard kit. Easy to apply. Smoothes well
Date published: 2020-03-29
Rated 5 out of 5 by from Good sealant - replaced old sealant on front door Easy to apply and wet wooden spatula gave good smooth finish
Date published: 2020-03-02
Rated 5 out of 5 by from Good product for winter storms Sealed Upvc windows against 50mph winds and driving rain.
Date published: 2020-03-01
Rated 5 out of 5 by from Top service Bought some exterior silicone, did an excellent job, and delivered excellent.
Date published: 2020-02-15
Rated 5 out of 5 by from Keeps the Weather Out I have an oak framed extension that faces West. The weather coems in through the cracks in the oak and around the fill. This product cured it and is sufficiently flexible to put up with further frame distortion. So far so good. Gareth
Date published: 2020-02-12
Rated 4 out of 5 by from Good Service I realised the previous product supplied was not suitable for my needs --- it said on your web site that it would work outside, but the fine print on the product told me otherwise. I purchased this instead ---great product!
Date published: 2020-01-21
Rated 5 out of 5 by from Great waterproof silicone Used around a leaking skylight - and has stopped the leak
Date published: 2019-12-18
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