Marine Silicone and Sealants - Shop Online - Sealant Supplies Ltd

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Marine & Motor Trade

Marine & Motor Trade
  • CT1 Sealant & Adhesive


    CT1 Sealant and Adhesive

    The One-Stop Product for all Sealing and Bonding

    CT1 is a construction adhesive that will never shrink or crack and can be structured and painted with any type of paint. Unlike other sealants, CT1 can be applied onto wet surfaces, making it ideal for use underwater in marine projects.

    Due to its ability to work with water, it is also the ideal product to seal baths and shower trays, windows, doors, roofing and guttering. CT1 Sealant and Adhesive is extremely versatile and is often used across multiple different projects by tradespeople. Available in a range of colours, simply select from the drop-down menu: Clear, Black, Brown, Grey, White, Silver, Oak and Beige. For a wide range of internal sealant colours please refer to Mapesil AC.

    As an adhesive, CT1 will create a formidable bond between any substrate, for instance, metals, glass, mirror, fibreglass, plastics, and stone, concrete, the list is endless. CT1 is often the first port of call for a tradesperson looking for a reliable construction adhesive. Above all, the adhesive to use for a multitude of applications is CT1, creating a permanent bond that will resist extreme loads, pressure and tensile strain.

    Order online today, discounts available and trade and credit account options via our website.

  • Sika Sikaflex 221 300ml



    Sika Sikaflex 221 is a high-quality multi-purpose non-sag, polyurethane sealant that cures on exposure to atmospheric humidity to form a durable elastomer.


    – 1-C formulation
    – Elastic
    – Low odour
    – Resistant to ageing
    – Non-corrosive
    – Can be painted
    – NSF-approved for incidental food contact.


    It is temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils. However, it is not immune to organic acids, alcohol, concentrated mineral acids and caustic solutions or solvents. Furthermore, any advice on specific applications will be given on request.


    For all other Sika products on our website, please click here.

    For any further information you require on Sika products, please visit their website here.


  • Soudal Aquafix – All Weather Sealant



    Soudal Aquafix is an all-weather sealant is an adhesive sealant that bonds to most surfaces even when damp or underwater. Ideal for use in emergency repairs or as a general sealant, Aquafix can be overpainted after curing and is UV resistant. Universal and can be used in many different areas for different application types, from sealing to adhering, it is an all-round sealant.


    Benefits of Aquafix:

    • Easy to apply and tool
    • Solvent Based
    • Adheres underwater
    • Good slump resistance
    • 10% Movement Accommodation

    For our full range of Soudal products, please click here.

    For more information, please visit the Soudal website.

  • CM SFS Stain Free Silicone 380ml



    CM SFS Stain Free Silicone is a moisture-cured one-component neutral silicone sealant used mainly for building and glazing joints. With it moisture cure allowing it to cure at room temperature, producing a flexible seal. CM SFS Stain Free Silicone adheres to most common building surfaces without the need for primer. Fully cured movement capability of -/+50%.


    For more in our sealant range, click here. For shop our ful CM Sealants range, please click here.

    For more information on CM sealants, you can visit their website here.



  • Arbo ARBOKOL 1025 SP



    Arbo Arbokol 1025 SP is a unique two-part Epoxy sealant that cures to form a hard-wearing seal, designed to accommodate small amounts of movement in extension but considerable movement in compression.


    • Swimming Pools
    • Compression Joints
    • Tile to Tile joints
    • Chlorine Resistant
    • Long Term Water Immersion Joints
    • Shower Rooms

    Not recommended

    • Structural Joints


    For more information on Arbo, please visit their website here.

    For more in our range of sealants, please click here. For primers and cleaners, please click here.

  • Mapei Latex Plus – Various Sizes



    Latex Plus is a latex admixture for use with NIVORAPID and PLANIPATCH. When mixed together it provides fast-setting levelling/smoothing compounds, with high flexibility for interior surfaces.

    Latex Plus is a water dispersion of a highly flexible polymer with low viscosity. Mix with Keraquick S1 or Nivorapid in order to improve their deformability, thus improving their application and performance characteristics.



    For more information about Mapei and their products, please visit their website here.

    For our full Mapei range, click here. For more in our Accelerators & Admixtures range, click here.

    Please be aware that this is a non stock item and lead times may vary.

  • Mapei Mapegum WPS – Various Sizes



    Mapegum WPS is a liquid waterproofing membrane for interior surfaces. Not suitable for continual immersion in water or areas that are subject to rising damp.

    Mapegum WPS is a ready-to-use, single component, solvent-free, grey coloured paste, with a base of synthetic resins in water dispersion. Mapegum WPS has a thixotropic consistency. This makes it easy to apply on all surfaces, especially those that are horizontal, sloping or vertical. After the quick evaporation of the water content, Mapegum WPS forms a flexible membrane which is non sticky, and strong enough to withstand light pedestrian traffic. It also creates an excellent surface that bonds perfectly to adhesives specifically used for laying ceramics, marble and natural stones.


    Mapegum WPS’s flexibility enables it to withstand normal expansion and contraction movements of the surface, due to variations in temperature and vibrations. Thanks to its flexibility, it acts as an anti-fracture membrane for substrates subject to light cracking.

    Mapegum WPS is resistant to water, limewater (pH > 12), and water that contains chlorides, and normal household detergents and cleaning products.


    For more information about Mapei and their products, please visit their website here.

    For our full Mapei range, click here. For more in our range of Adhesives, click here.


    Please be aware that this is a non stock item and lead times may vary.

  • Sika Sikabond AT Metal 300ml – Box of 12


    Sika Sikabond AT Metal is a one-part, solvent-free, elastic adhesive and sealant for porous and non-porous substrates, particularly for metals. Sika Sikabond AT Metal is based on Silane Terminated Polymers.


    Sikabond AT Metal has strong adhesion on non-porous substrates, especially on metals (aluminium, copper, galvanised steel, stainless steel, etc.), and many plastics (PVC, powder coatings, etc.)


    – 1-part, ready to use
    – Excellent adhesion without priming on many metals and non-porous substrates
    – Excellent adhesion on porous substrates (i.e. concrete, roof tiles, mortar etc.)
    – Excellent work-ability
    – Short cut off string
    – Good initial tack and fast curing
    – Non-corrosive
    – Good weathering and water resistance
    – Silicone free
    – Solvent-free


    Sikabond AT Metal is supplied ready to use. After substrate preparation applies Sika Sikabond AT Metal in beads, strips or spots on the bonding surface at intervals of a few centimetres.


    Sika Sikabond AT Metal is not to be used for Facade panel bonding. For facade panels use the SikaTack-Panel System. Also,
    do not use SikaBond AT-Metal as a glass sealer, on titan zinc, bitumin substrates, natural rubber, EPDM rubber or on building materials which might bleed oils or solvents. However, for the correct curing of the adhesive sufficient relative humidity is necessary.
    Elastic adhesives should not generally be overpainted. If there is overpainting of the adhesive, surface cracking and higher tackiness plus slight colour variations can occur.

    For all other Sika products on our website, please click here.

    Any further information you may need on Sika products, please visit their website here.

  • Mapei Fugolastic – Various Sizes



    Fugolastic main purpose is as a substitute for water to mix the cement based grouts in the Keracolor range. This helps to improve the grout adhesion and mechanical strength, and to reduce the porosity and absorption.



    Fugolastic is a water dispersion of synthetic polymers, that when mixed with cement based products for grouting ceramic tiles, enhances them with the following properties:
    • Improved compactness and greater abrasion resistance.
    • Optimum hydration of the cement based binder, and improved adhesion to the edge of tiles.
    • Less porosity and less absorption meaning cleaning the grout is easier.

    Fugolastic can be safely mixed with all Keracolor colours and grain sizes without affecting the colour.


    For more information about Mapei and their products, please visit their website here.

    For our full Mapei range, click here. For more in our Grouts and Adhesives range, click here.



    Please be aware that this is a non stock item and lead times may vary.

  • Cromar Alpha Chem Integral Waterproofer 5 Litres – Box of 4



    AlphaChem Integral Waterproofer New is a liquid admixture designed to reduce water absorption and make cement mixes less permeable.

    It also improves the workability of the mortar. Integral Waterproofer New is suitable for use in rendering finishes and pointing mortars.


    – Makes renders and mortars water‐resistant.
    – Improves weathering properties.
    – Reduced suction aids pebble dashing – larger areas covered easily.
    – Surfaces stay cleaner longer.
    – Better appearance after rain
    – Less likelihood of efflorescence.
    – Drying shrinkage, crazing and cracking reduced.
    – Improved frost resistance.
    – Greatly reduced capillary attraction. Directions
    – Stir or shake well before use.
    – Integral Waterproofer New is ready for use and is added to the mix at the selected dosage rate.
    – Mix designs will depend on factors such as location and sand gradings. – Refer to local standards and codes of practice for guidance.


    For more information on Cromer, please visit their website here.

    For the 25 litre version, please click here. For our other waterproofing and water resistant products, please click here.

  • Soudal Superglue Activator 200ml



    Aerosol Superglue Activator – to be used in conjunction with cyanoacrylate based high viscosity superglue. Activator reduces blooming and odour. Allows the superglue to cure almost instantly. Easy to use.


    For more in our cleaning and prep range, please click here, or to shop our full range of Soudal products, please click here.

    For more information on Soudal, visit their website by following the link here.

  • Cromar Powder Mortar Tone 1kg – Box of 6


    Cromar Powder Mortar Tone is a permanent powder colourant for pigmenting all types of mortars, rendering, pointing and concrete.


    For more information on Cromer, please visit their website here.

    For our full list of grouts and adhesives, please click here. For primers and cleaners, please click here.

Marine Silicone

Marine silicone provides a solution for caulks gaps, joints and cracks around a boat. Filling these spaces with a water-tight and flexible sealant means you don’t have to worry about water ingress or damage.

Available in a range of colours, the marine silicone sealants we stock assist with fixing issues and the manufacturing of boats. Often used to seal joints where pipes pass through desks, sealing around windows and portholes.

Stocking brands such as Bond-It with their own specialist Marine Silicone, we understand it can be difficult to find a reliable and cost-effective sealant. However, at Sealant Supplies our ethos is to provide Marine sealants at reasonable prices.

For trade customers we also provide a range of options in terms of trade and credit accounts, where they can benefit from discounts and a range of payment terms options.

Marine sealants must be durable, weatherproof and suitable to work with a range of materials. The sealants we stock are ideal for use with a range of materials such as glass, ceramics, primed metals and many plastics.

At Sealant Supplies we are a one-stop shop for all thing’s sealant. Alongside our marine sealants we also stock a range of high-quality tools for application and accessories to aid sealant application such as primers and cleaning tools.