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Sealants

Sealants are used to stop fluids and other substances from passing through joints or openings. Various types available including all purpose, roofers seal, fire and heat, building, glazing and more.

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    Soudal Multi-Purpose Silicone Clear 270ml (121644)

    Acetoxy silicone sealant that cures to form a flexible, durable weathertight seal on many common building surfaces, including glass, metals, wood and ceramic tiles. Suitable for internal and external use on general construction items, masonry,...
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    Soudal Multi-Purpose Silicone Black 270ml (116824)

    Acetoxy silicone sealant that cures to form a flexible, durable weathertight seal on many common building surfaces, including glass, metals, wood and ceramic tiles. Suitable for internal and external use on general construction items, masonry,...
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    Geocel Top Gun Multi-Purpose Clear 290ml

    Geocel Top Gun Multi Purpose Silicone Sealant can be used for a variety of internal and external applications. It has excellent adhesion, gives a watertight seal and remains permanantly flexible.
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    Soudal Lead Sheet Sealant Grey 290ml (116726)

    Low modulus neutral cure silicone that eliminates the need for grouting. Long life. Adhesion to most building materials - all types of lead (BS:EN 12588 (1999) compatible, milled, rolled, sand cast, water-cooled), other metals, brickwork, concrete,...
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    Geocel Top Gun Multi-Purpose Sealant Brown 290ml

    Geocel Top Gun Multi Purpose Silicone Sealant can be used for a variety of internal and external applications. It has excellent adhesion, gives a watertight seal and remains permanantly flexible.
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    Geocel Trade Mate Lead & Gutter Seal Grey 310ml

    Geocel Trade Mate Lead & Gutter Seal is a silicone rubber sealant for the installation and maintenance of gutter systems and downpipes, and pointing joints between lead flashing and brickwork, stone or masonry.
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    Soudal Multi-Purpose Silicone Brown 270ml (116713)

    Acetoxy silicone sealant that cures to form a flexible, durable weathertight seal on many common building surfaces, including glass, metals, wood and ceramic tiles. Suitable for internal and external use on general construction items, masonry,...
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    Geocel Top Gun Multi-Purpose Sealant White 290ml

    Geocel Top Gun Multi Purpose Silicone Sealant can be used for a variety of internal and external applications. It has excellent adhesion, gives a watertight seal and remains permanantly flexible.
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    Soudal Bathroom & Kitchen Sanitary Silicone Clear 290ml (144383)

    Low modulus acetic curing sanitary sealant silicone, that contains a powerful anti-fungicidal agent. This product has very fast skinning time and final cure with primerless adhesion on most common construction materials. It is resistant to UV, rain and...
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    Soudal Multi-Purpose Silicone Brilliant White 270ml (121643)

    Acetoxy silicone sealant that cures to form a flexible, durable weathertight seal on many common building surfaces, including glass, metals, wood and ceramic tiles. Suitable for internal and external use on general construction items, masonry,...
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    Bostik Pro Sealant S41 Window & Door Frame Silicone Brown 310ml

    A brown S41 Neutral Cure Window & Door Frame Silicone by Bostik, is a professional grade neutral cure silicone sealant, developed for sealing window and door frame joints. This silicone sealant is also available in either Anthracite or Clear, so it fits...
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    Bostik Pro Sealant S41 Window & Door Frame Silicone White 310ml

    This silicone sealant by Bostik is the S41 Neutral cure window & door frame silicone, a professional grade neutral cure silicone sealant, developed for sealing window and door frame joints. This sealant is suitable for interior and exterior...
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    Geocel Top Gun Multi-Purpose Sealant Black 290ml

    Geocel Top Gun Multi Purpose Silicone Sealant can be used for a variety of internal and external applications. It has excellent adhesion, gives a watertight seal and remains permanantly flexible.
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    Geocel Trade Mate Sanitary Sealant White 310ml

    Geocel Trade Mate Sanitary Seal is a fast curing silicone sealant, ideal for sealing around sanitary units and non-porous surfaces. It provides excellent unprimed adhesion to a variety of substrates including ceramics, plastics and enamel.
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    Bostik Pro Sealant S21 Multi Purpose Silicone Clear 310ml

    This Bostik S21 310ml multi purpose Silicone Sealant is a clear coloured professional grade, acetoxy silicone sealant for sealing glazing, frame and sanitary joints. This low modulus silicone sealant is suitable for interior and exterior use and offers...
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    Bostik Pro Sealant S30 Acetoxy Sanitary Silicone Clear 310ml

    Professional grade acetoxy silicone sealant for sanitary joints. S30 is a professional grade acetoxy sanitary silicone sealant developed for sealing sanitary joints. Sanitary joints are continually exposed to moisture and humidity. This acetoxy silicone...
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    Bostik Pro Sealant S31 Sanitary Silicone Clear 310ml

    The Bostik S31 Neutral Cure Sanitary Silicone Sealant is a professional grade, neutral cure silicone sealant developed for sealing sanitary joints that are continually exposed to moisture and humidity. S31 is a great sealant that adheres well with...
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    Soudal Bathroom & Kitchen Sanitary Silicone White 290ml (144382)

    Low modulus sanitary silicone by Soudal that contains a powerful anti-fungicidal agent. This silicone has a very fast skinning time and final cure, as well as being resistant to UV, rain and snow. Due to its nature it also features a temperature...
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    Bostik Pro Sealant S21 Multi Purpose Silicone Black 310ml

    A professional grade black S21 multi purpose Silicone Sealant. Features acetoxy silicone sealant for sealing glazing, frame and sanitary joints. This low modulus silicone sealant is suitable for interior and exterior use and offers up to 20% movement...
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    Geocel Dow Corning 785 Sanitary Silicone Sealant White 310ml

    This Sanitary Silicone Sealant from Geocel offers excellent adhesion to non-porous surfaces and is designed to seal areas around sanitary fittings such as toilets, urinals, sinks, baths, showers etc. The sealant is resilient against most types of...
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    Soudal Multi-Purpose Silicone Grey 270ml (131605)

    Acetoxy silicone sealant that cures to form a flexible, durable weathertight seal on many common building surfaces, including glass, metals, wood and ceramic tiles. Suitable for internal and external use on general construction items, masonry,...
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    Bostik Pro Sealant PU91 Polyurethane Sealant for High Movement Joints Black 300ml (30623103)

    Bostik PU91 Black Silicone is engineered for professionals who demand performance in construction projects with high movement. This versatile polyurethane sealant stands out due to its high modulus and elastic properties, enabling it to endure the...
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    Bostik Pro Sealant PU91 Polyurethane Sealant for High Movement Joints Brown 300ml (30623143)

    Bostik PU91 Silicone in Brown colour is engineered for professionals who demand performance in construction projects with high movement. This versatile polyurethane sealant stands out due to its high modulus and elastic properties, enabling it to endure...
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    Bostik Pro Sealant PU91 Polyurethane Sealant for High Movement Joints White 300ml (30623108)

    Bostik PU91 Silicone is engineered for professionals who demand performance in construction projects with high movement. This versatile polyurethane sealant stands out due to its high modulus and elastic properties, enabling it to endure the stresses...

Sealants

Sealants are used when you are looking to create a waterproof or airproof seal. Also knows as silicone sealants or mastics, they can be used for both internal or external applications, minimising any passing of water or air into an area.

Applied using a sealant gun, the sealant fills any gaps to leave a smooth finish and when dried can be sanded or painted over.

If you're not sure which type of sealant you require, ask our friendly team at your local branch.

Frequently Asked Questions

Can you paint over silicone sealant?
Silicone sealant is a durable and long-lasting variety that seals and waterproofs. Its drawback is that paint will not stick to it. However, it is possible to paint over silicone caulk.
Can you put sealant on top of sealant?
We do not recommend putting new sealant on top of old sealant as it poses a risk of leakages.
What removes silicone sealant?
Sealant remover, a soft cloth, a razor or utility knife, and a scouring pad would help to remove your silicone sealant efficiently.
How to apply silicone sealant.
To apply silicone sealant, start by evaluating the project. Think about what you need to do, what you’d like the finished job to look like and what kind of tools and sealant you need. Once you’ve picked the right tools and you’ve got everything you need, you can start preparing the area. This means that you need to ensure that the area is free of dirt and grime, removing any leftover old sealant, and making sure that the entire area is clear ready for when you get started. Then, you can start applying the sealant, although, depending on the type of sealant you use, there are lots of different ways to apply it. You may need a sealant gun, or the sealant that comes in a tube so you can apply it directly. Once you’ve applied the sealant, smooth it out by using either your finger or a sealant smoothing tool, then make sure to leave it to dry for the time specified by the instructions.