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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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  • Geocel Top Gun Multi-Purpose Sealant Brown 290ml

    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.
  • Bostik Pro Sealant S41 Window & Door Frame Silicone Brown 310ml

    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...
  • Special Offer
    Soudal Multi-Purpose Silicone Brown 270ml (116713)
    Special Offer

    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,...
  • Bostik Pro Sealant PU91 Polyurethane Sealant for High Movement Joints Brown 300ml (30623143)

    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...
  • Geocel Trade Mate Frame Seal Brown 310ml

    Geocel Trade Mate Frame Seal Brown 310ml

    Geocel Trade Mate Frame Seal is a low modulus neutral silicone sealant for external sealing around door and window frames including PVC-U, coated aluminium & painted surfaces.
  • Soudal Fix All High Tack Brown 290ml (119270)

    Soudal Fix All High Tack Brown 290ml (119270)

    Super strong hybrid polymer sealant and adhesive with high initial tack and end strength (320kg/10cm²). Based on SMX Polymer Technology, High Tack achieves high performance flexible bonding and sealing of all types of materials onto almost any surface,...

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.