Sealants
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£89.30 ex. VATSika® Aktivator-205 is a transparent, solvent-based adhesion promoter designed to improve bonding performance between substrates and Sikaflex® or Sikasil® adhesives and sealants. It reacts with moisture on the substrate surface to create active bonding sites, enhancing adhesion on a wide range of materials while offering a fast flash-off time and easy application. Key Points: - Enhances adhesion on a variety of substrates - Designed for use before applying Sikaflex® and Sikasil® products - Fast flash-off time for efficient application - Transparent, solvent-based formula that is ea -
£265.00 ex. VATEpoxy Sealer EPR-31P is a professional-grade, solvent- and water-free two-component epoxy sealer formulated to suppress residual construction moisture and rising damp. Designed for use on both indoor and outdoor subfloors, it is ideal for treating porous, dusty, or moisture-prone surfaces such as concrete, anhydrite, wood, metal, and ceramic tiles. Once fully cured, it forms a tough, non-shrinking, and waterproof barrier that significantly improves adhesion strength, making it suitable for installations involving underfloor heating and critical subfloor conditions. Key Benefits: Bloc
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£44.93 - £216.29 ex. VATSika®-1 is a normal-setting liquid waterproofing admixture for cementitious mortars and concrete, designed to reduce water penetration by blocking capillaries and pores within the applied system. It is suitable for both indoor and outdoor applications, including renders, masonry mortars, screeds, reinforced and unreinforced concrete, and brick, concrete and stone substrates. Sika®-1 is ideal for areas such as basements, swimming pools, tunnels, water tanks, manholes and culverts, including applications in tropical and hot climates. Key Points: - Effective waterproofing: Blocks capillarieSelect options This product has multiple variants. The options may be chosen on the product page
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£48.66 ex. VATWater Stop is a ready-to-use, fibre-reinforced roof coating designed for both wet and dry surfaces. Ideal for emergency repairs or long-term protection, it offers outstanding waterproofing and durability, even in extreme weather conditions. Flexible and UV-resistant, Water Stop adheres well to a variety of roofing materials and can be applied during rain or frost, making it a reliable solution year-round. Key Features: All-Weather Application: Can be used in rain, frost, or dry conditions without compromising performance. Durable & Flexible: Withstands temperature fluctuat
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£5.14 ex. VATFirecryl FR is a high-performance, fire-resistant acrylic sealant designed to block the spread of flames and smoke through joints and gaps. Upon exposure to heat above 120°C, it expands (intumesces) to form a heat-resistant barrier, making it ideal for enhancing fire safety in interior applications. Easy to apply and paintable once cured, it offers reliable adhesion to most porous construction surfaces and forms a waterproof, flexible seal. Expands under high heat to block fire and smoke spread. Compatible with water-based paints for a seamless finish. Maintains permaneSelect options This product has multiple variants. The options may be chosen on the product page
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£64.06 ex. VATThe Soudal Roller Soudafloor SL2 is a self-levelling floor compound designed to create smooth, even surfaces before the installation of final floor coverings such as tiles, vinyl, or laminate. It is typically applied using a roller or trowel, allowing it to flow easily and fill in minor imperfections in concrete or screeded floors. Known for its good adhesion and quick-setting properties, it helps improve the durability and finish of flooring systems while providing a reliable base for both residential and commercial applications.
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£4.57 - £9.92 ex. VATSoudal Fix ALL Flexi is a high-quality, neutral-curing, one-component construction adhesive and joint sealant based on SMX Hybrid Polymer technology. It provides excellent adhesion to a wide range of materials, including slightly moist surfaces and natural stone, while remaining permanently elastic after curing. With low odour, very low emissions and excellent resistance to UV exposure, mould and ageing, it is suitable for a variety of internal and external bonding and sealing applications. It can also be overpainted with water-based paint systems. Key Points: Excellent Adhesion: BSelect options This product has multiple variants. The options may be chosen on the product page
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£6.16 ex. VATSoudal Gasketseal is a high-quality, one-component, elastic silicone sealant designed to replace traditional cork, felt, fibre, paper and rubber gaskets in a wide range of thicknesses and widths. It provides excellent resistance to fuels, oils and grease, while withstanding temperatures up to 285°C. Easy to apply, it remains permanently flexible after curing, making it ideal for sealing and gasket replacement applications. Key Points: High Temperature Resistance: Withstands temperatures up to 285°C. Excellent Chemical Resistance: Resistant to fuels, oils and grease.
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£2.91 ex. VATSoudal CARJOINT Grey is a high-quality, flexible sealant designed specifically for sealing and bonding joints in construction and automotive applications. It offers excellent adhesion to a wide range of materials, including metal, concrete, and plastics, while maintaining durability and resistance to weathering, UV exposure, and vibrations. Its grey finish provides a neat, professional appearance, making it ideal for visible joints where both performance and aesthetics matter. Easy to apply and long-lasting, it ensures reliable sealing in both indoor and outdoor environment
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£4.66 ex. VATButyrub Polybutene Sealant is a durable, one-component sealing solution specially formulated for joints requiring minimal movement. Designed with a non-setting polybutene base, it creates a flexible, watertight skin that resists UV exposure and various chemicals. Ideal for sealing joints in masonry, windows, roofs, and vehicle bodies, this sealant adheres well to most porous construction materials without the need for primer and can be painted over after 24 hours for a seamless finish. Key Benefits: Stays flexible with an elastic, waterproof skin Excellent adhesion to common b
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£4.64 ex. VATSika® Rendermix is a water-resisting plasticiser designed to improve the performance of renders and screeds, particularly for exterior applications. It reduces porosity, enhances durability, improves workability retention, and helps prevent water bleeding, while its air-entraining properties contribute to a more workable and durable mix. Key Points: - Water-resisting plasticiser for renders and screeds - Reduces porosity and improves durability - Retains workability for longer and prevents water bleeding - Suitable for exterior render and screed applications Shelf Life - 24 months
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£1.03 - £40.49 ex. VATThe ARBO Heavy Duty Follower Plate is designed for helping transfer mixed sealant cleanly from the tin into empty cartridges or bulk guns. Once the sealant is mixed, the plate is pressed down into the tin to ensure efficient and mess-free filling. It’s a durable, practical tool for professional sealant application work. Key points: - Pushes sealant down to fill cartridges or bulk guns efficiently - Heavy-duty construction for professional, repeated useSelect options This product has multiple variants. The options may be chosen on the product page
Sealants
There are many general-purpose silicone and DIY sealants available to help you get the job done right. We stock a wide selection of these sealants for home improvement, workplace application, and general DIY applications.
Silicone sealants are generally versatile in formulation which allows a wide variety of applications. However, some sealants are formulated for specific jobs and it is essential to choose the right product.
At Sealant Supplies Ltd, you can choose from our full catalogue of sealants. We have a wide variety of sealants including roof and gutter sealants, timber sealants, laminate sealants and more. All our sealants come from affordable and reputable brands that you can trust.
We also stock general purpose sealants which are more flexible and suitable for use on smooth, non-porous materials. Their waterproof properties make them ideal for use in showers, sinks, and baths. Some general purpose sealants contain anti-fungal properties which make them a perfect choice for bathrooms and kitchens.
General purpose sealants cure quickly after application providing a high-strength, permanent waterproof seal. This makes them ideal for glass, metal, wood, and plastics among others. General purpose sealants can withstand moisture, heat, and vibration which combined with their low viscosity aids quick application and drying.
Check out our catalogue of DIY silicone sealants to find the solution you need.