The Bostik Waterstop Flexible Waterproof Coating in 6kg Grey is formulated for the professional and the serious DIYer who demand long-term reliability in waterproofing jobs. This high-performance, flexible liquid rubber coating is ideal for immediate sealing of surfaces subject to water ingress and is engineered to deliver a durable, weatherproof barrier across both horizontal and vertical substrates.
From flat roofs and gutters to flashing around roof-lights and chimney stacks, and even concrete foundations and walls, this coating brings versatility to your arsenal. With a solvent, bitumen and isocyanate-free formulation, it offers environmental advantages and clean handling characteristics without compromising on performance.
Unlike many coatings that require priming or stringent dry conditions, this coating can be applied to both dry and damp surfaces (once surface preparation is respected) without a separate primer. After application, the product resists cracking, UV damage, frost and temperature variation - so it stays protective when others give way.
Features & Benefits
High-performance flexible liquid rubber coating - designed to give long-lasting surface protection and a true weather-proof seal.
Instantly waterproof - can be applied onto wet or dry surfaces (after minimal preparation) removing the delay often associated with traditional systems.
Versatile in use - ideal for flat roofs, gutters, flashing around roof-lights and chimneys, concrete walls and foundations.
No primer required - saves time, simplifies the workflow and reduces associated costs.
Broad substrate compatibility - suitable for concrete, stone, wood, metal, zinc, clay, tiles, slate, felt, polystyrene, and most plastics (except polyethylene & polypropylene) and not suitable for bituminous coatings.
Environmentally-friendlier formula - free from solvent, bitumen and isocyanates; reduces odour and hazardous component risk.
Outstanding durability - resists cracking, UV, frost and temperature variations, offering a secure coating in demanding external conditions.
Colour: Grey; Pack size: 6kg bucket (with foil pouch inside) - practical size for tradesmen jobs yet large enough to cover substantial area.
Your order will be ready to collect two hours from receiving your order confirmation, please remember to bring your order confirmation as proof of order when collecting. We aim to have your order ready, however, sometimes it will be necessary to fulfil the order upon arrival. Any orders placed after 4pm will be ready to collect the following working day.
We deliver to locations across Birmingham, Midlands, South and East of England. We offer free delivery for orders over £250 + VAT, for orders under this amount there is a £30 delivery charge. We aim to deliver orders within 3-5 working days, you will be able to select your preferred delivery date at the checkout. If you would like an out of area delivery please contact us with your requirements.