null

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.

Filters

Check local branch stock

  • Bostik Pro Sealant PU91 Construction Polyurethane Grey 300ml (30623104)

    Bostik Pro Sealant PU91 Construction Polyurethane Grey 300ml (30623104)

    PU91 by Bostik is a professional grade construction polyurethane sealant developed for sealing construction joints subject to high movement. This grey PU sealant has a high modulus formulation and is extremely elastic with up to 25% movement capability...
  • Bostik Pro Sealant S21 Multi Purpose Silicone Black 310ml

    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...
  • Bostik Pro Sealant S21 Multi Purpose Silicone Clear 310ml

    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...
  • Bostik Pro Sealant S21 Multi-Purpose Silicone White 310ml

    Bostik Pro Sealant S21 Multi-Purpose Silicone White 310ml

    Bostik S21 multi purpose Silicone Sealant is a 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 up to 20% movement...
  • Bostik Pro Sealant S30 Acetoxy Sanitary Silicone Clear 310ml

    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...
  • Bostik Pro Sealant S30 Acetoxy Sanitary Silicone Grey 310ml

    Bostik Pro Sealant S30 Acetoxy Sanitary Silicone Grey 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...
  • Bostik Pro Sealant S30 Acetoxy Sanitary Silicone White 310ml

    Bostik Pro Sealant S30 Acetoxy Sanitary Silicone White 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...
  • Bostik Pro Sealant S31 Sanitary Silicone Clear 310ml

    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...
  • Bostik Pro Sealant S31 Sanitary Silicone Grey 310ml

    Bostik Pro Sealant S31 Sanitary Silicone Grey 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...
  • Bostik Pro Sealant S31 Sanitary Silicone White 310ml

    Bostik Pro Sealant S31 Sanitary Silicone White 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...
  • Bostik Pro Sealant S41 Window & Door Frame Silicone Anthracite 310ml

    Bostik Pro Sealant S41 Window & Door Frame Silicone Anthracite 310ml

    This S41 Neutral Cure Window & Door Frame Silicone Sealant by Bostik is a professional grade neutral cure silicone sealant, developed for sealing window and door frame joints. This silicone sealant is anthracite in colour, but it is also available in...
  • 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...
  • Bostik Pro Sealant S41 Window & Door Frame Silicone Clear 310ml

    Bostik Pro Sealant S41 Window & Door Frame Silicone Clear 310ml

    S41 is a neutral cure window and door frame silicone sealant made by Bostik. This S41 sealant is a professional grade neutral cure silicone sealant, developed for sealing window and door frame joints. Suitable for interior and exterior applications,...
  • Bostik Pro Sealant S41 Window & Door Frame Silicone White 310ml

    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...
  • Bostik Pro Sealant S80 Glazing Silicone White 310ml

    Bostik Pro Sealant S80 Glazing Silicone White 310ml

    With a low modulus formulation, this professional grade glazing silicone sealant by Bostik offers a movement capability of up to 25%. It's suitable for use in most types of glazing joints, and has also been developed for good adhesion to PMMA and PC,...
  • C-Tec CT1 Sealant & Adhesive Clear 290ml (539506)

    C-Tec CT1 Sealant & Adhesive Clear 290ml (539506)

    CT1 is the only product in the market with TRIBRID Technology, making it 360% stronger than a traditional Hybrid Polymer. It is scientifically proven to have excellent colour retention, and stays clear! Unique adhesion on virtually any material in most...
  • C05 Dow Corning 791 Weatherproofing White Silicone C05 Dow Corning 791 Weatherproofing White Silicone

    C05 Dow Corning 791 Weatherproofing White Silicone

    Suitable for use with the majority of construction materials, including brick, timber and glass, this Weatherproofing Silicone is designed to protect a building from extreme hot and cold temperatures, pollution, UV rays etc. The Silicone cures incredibly...
  • Dowsil 791 Weatherproofing Sealant Black 310ml Dowsil 791 Weatherproofing Sealant Black 310ml

    Dowsil 791 Weatherproofing Sealant Black 310ml

    This Dow Corning Weatherproofing Silicone is designed to protect areas from a variety of weather problems, including (not exclusive to) pollution, temperature extremes particularly during the summer and winter months and rain. The Silicone can be used...
  • Dowsil Corning 785+ Sanitary Silicone Sealant Clear 310ml

    Dowsil Corning 785+ Sanitary Silicone Sealant Clear 310ml

    Resistant against bacteria including E. Coli, MRSA and Salmonella, this Sanitary Silicone Sealant is suitable for use in areas where hygiene is important. It also offers excellent adhesive properties allowing it to be used on most types of non-porous...
  • Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Anthracite 300ml EB25ANTH Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Anthracite 300ml EB25ANTH

    Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Anthracite 300ml EB25ANTH

    EB25 is the ultimate sealant and adhesive, with excellent flexibility and remarkable bond strength that you can rely on for practically any application, thanks to a unique polymer blend and cutting-edge technology. Suitable for use both indoors and...
  • Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Black 300ml EB25BK Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Black 300ml EB25BK

    Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Black 300ml EB25BK

    EB25 is the ultimate sealant and adhesive, with excellent flexibility and remarkable bond strength that you can rely on for practically any application, thanks to a unique polymer blend and cutting-edge technology. Suitable for use both indoors and...
  • Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Grey 300ml EB25GY Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Grey 300ml EB25GY

    Everbuild EB25 Ultimate Sealant & Adhesive Cartridge Grey 300ml EB25GY

    EB25 is the ultimate sealant and adhesive, with excellent flexibility and remarkable bond strength that you can rely on for practically any application, thanks to a unique polymer blend and cutting-edge technology. Suitable for use both indoors and...
  • Everbuild Stixall Crystall Clear 290ml (STIXCLEAR)

    Everbuild Stixall Crystall Clear 290ml (STIXCLEAR)

    Everbuild Stixall Extreme Power is the ultimate combined building adhesive and sealant, based on hybrid polymer technology, with the most Extreme power to both bond and seal virtually EVERYTHING to ANYTHING in nearly all conditions, even under water or...
  • Everflex Contract 125 One Hour Caulk White 125C3 Everflex Contract 125 One Hour Caulk White 125C3

    Everflex Contract 125 One Hour Caulk White 125C3

    Everflex Contract 125 One Hour Caulk is a fast-drying flexible decorators’ filler and sealant that remains permanently flexible. Can be overpainted with most paint types or covered over with wallpaper; no sanding down required. Ideal for sealing and...

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.