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Sealants & Adhesives

Sealants and adhesives are essential for bonding, sealing, and protecting materials in construction and DIY projects. Whether you’re fixing, filling gaps, or creating waterproof seals, our range includes high-performance products suitable for a wide range of applications.

From grab adhesives for strong instant bonding to silicone sealants for flexible waterproof finishes, we supply reliable solutions for both trade professionals and home users.

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    Soudal Fix All Black Triple Pack Adhesive 290ml (3 Pack) (167224)

    Triple pack of Soudal Fix All black adhesive and sealant for strong interior and exterior bonding. Buy online today.
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    Soudal Fix All Crystal Clear 290ml (118779)

    Soudal Fix All Crystal Clear adhesive and sealant in a 290ml cartridge for invisible, high strength bonding. Buy online today.
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    Soudal Fix All Crystal Clear Adhesive 290ml (3 Pack) (131021)

    Triple pack of Soudal Fix All Crystal Clear adhesive and sealant for high strength transparent bonding. Buy online today.
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    Soudal Fix All High Tack Anthracite 290ml (156666)

    Soudal Fix All High Tack anthracite adhesive and sealant for professional installation work. Buy online today.
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    Soudal Fix All High Tack Black 290ml (101459)

    Soudal Fix All High Tack black adhesive and sealant with instant grab and high bond strength. Buy online today.
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    Soudal Fix All High Tack Brown 290ml (119270)

    Soudal Fix All High Tack brown adhesive and sealant for strong bonding applications. Buy online today.
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    Soudal Fix All High Tack Grey 290ml (101454)

    Soudal Fix All High Tack grey adhesive and sealant for fast, permanent fixing. Buy online today.
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    Soudal Fix All High Tack White 290ml (101444)

    Soudal Fix All High Tack white adhesive and sealant for instant grab and powerful bonding. Buy online today.
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    Soudal Fix All Turbo Triple Pack Adhesive 290ml (131019)

    Triple pack of Soudal Fix All Turbo adhesive for rapid curing and high strength fixing. Buy online today.
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    Soudal Fix All Turbo White 290ml (122236)

    Soudal Fix All Turbo white adhesive and sealant for rapid high strength bonding. Buy online today.
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    Soudal Foam & Gun Cleaner Clear 500ml (116924)

    Soudal foam and gun cleaner supplied in a 500ml aerosol for removing uncured PU foam residue. Buy online today.
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    Soudal Grip All Solvent Based Beige 290ml (152706)

    Soudal Grip All solvent based grab adhesive in beige for strong interior and exterior bonding. Buy online today.
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    Soudal Premium Building Silicone Clear 290ml (128442)

    Soudal premium building silicone in clear supplied in a 290ml cartridge for flexible weatherproof seals. Buy online today.
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    Soudal Premium Building Silicone White 290ml (128440)

    Soudal premium building silicone in white supplied in a 290ml cartridge for professional sealing. Buy online today.
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    Soudal Silirub N Anthracite RAL 7016 UK 300ml (146067)

    Soudal Silirub N anthracite neutral cure silicone sealant in a 300ml cartridge. Buy online today.
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    Soudal Silirub N Black UK 300ml (122401)

    Soudal Silirub N black neutral cure silicone sealant for professional sealing applications. Buy online today.
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    Soudal Silirub N Brilliant White UK 300ml (118985)

    Soudal Silirub N brilliant white neutral cure silicone sealant supplied in a 300ml cartridge. Buy online today.
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    Soudal Soudabond Easy Gun Grade Foam Orange 750ml (161094)

    Soudal Soudabond Easy gun grade foam adhesive supplied in a 750ml can for bonding insulation boards. Buy online today.
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    Soudal Soudafoam Fire Rated High Yield Gun Grade Pink 750ml (153085)

    Soudal Soudafoam fire rated high yield gun grade expanding foam in a 750ml can. Buy online today.
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    Soudal Stay Fresh Acetoxy Anti-Mould Silicone Clear 290ml (152988)

    Soudal Stay Fresh anti mould clear silicone sealant for bathrooms and kitchens. Buy online today.
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    Soudal Stay Fresh Acetoxy Anti-Mould Silicone Ice White 290ml (152987)

    Soudal Stay Fresh anti mould silicone in ice white for kitchens, bathrooms and wet areas. Buy online today.
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    Soudal Stay Fresh Anti-Mould Silicone Clear Twin Pack

    Twin pack of Soudal Stay Fresh clear anti mould silicone for bathrooms and kitchens. Buy online today.
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    Soudal Stay Fresh Anti-Mould Silicone Ice White Twin Pack

    Twin pack of Soudal Stay Fresh ice white anti mould silicone for wet areas. Buy online today.
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    Thompsons One Coat Water Seal 1 Litres

    Thompsons One Coat Water Seal in a 1 litre container for waterproofing brick, stone and masonry. Buy online today.

Sealants & Adhesives

Grab adhesives

Ideal for strong, instant bonding without the need for nails or screws:

Perfect for flexible, waterproof sealing:

  • Bathroom sealants
  • Exterior silicone
  • Weatherproof sealants
  • Expanding foam

Used for filling gaps and insulation:

Specialist adhesives & sealants

Designed for specific materials and applications:

  • Wood adhesives
  • Masonry sealants
  • High-temperature sealants

Choosing the right sealant or adhesive

When selecting sealants and adhesives, consider:

  • Application – bonding, sealing, or gap filling
  • Environment – interior or exterior use
  • Water resistance – essential for bathrooms and outdoor areas
  • Material compatibility – wood, metal, masonry, or plastic

Complete your project

You may also need:

If you are working on a new project or renovating an existing outdoor space, pop into your local Howarth branch or browse our website. We also offer Click & Collect and Delivery options.

Shop Sealants & Adhesives by Type

Frequently Asked Questions

How to use silicone sealant?
To use silicone sealant, prepare the area that needs to be sealed, apply the sealant, smooth the sealant, and then leave it to dry.
How much tile adhesive do I need?
You will need 1.8kgs per 1mm depth per m2.
How to mix grout?
To mix grout, add water to the grouting powder in the manufacturer-recommend ratio. Tilt mixing bucket and stir with a grout-mixing knife. Then, adjust grout consistency by adding more powder or water. Let the grout rest for up to 10 minutes before using a grout knife to mix thoroughly once more.
How to use wood filler on a door frame?
To use wood filler on a door frame, start off by scraping out any flaking and splinters of paint from the damaged parts by using a wire brush. Then, it is important to soften or mix the filler as per instructions. It could involve stirring to the point of hardening, kneading until it softens, or mixing different substances until you get a similar colour. At this point, apply the ready filler on a putty knife. You will then scrape it onto the frame’s damaged area. After you’ve done that, allow a reasonable time for the filler to dry.
How to use expanding foam?
To use expanding foam, first clean the area, removing any debris and dirt to ensure there will be no contaminants. Put on disposable gloves to ensure you stay as safe as possible (as expanding foam can burn and will stick to your skin if it gets on you), prepare the can by removing the top and screwing in the applicator nozzle onto the valve, making sure not to use too much. Then, finally, shake the can well and then insert the nozzle into the hole you wish to fill, holding the can upside down for the best application. Make sure to leave the foam to set, which will take between 30 minutes and 12 hours depending on the amount of foam you’ve used. Once the foam has dried, you can cut and sand it down to the desired fit.
What is grab adhesive used for?
Grab adhesive is used for bonding materials quickly without the need for screws or nails.
What sealant is best for waterproofing?
Silicone sealants are commonly used for waterproofing due to their flexibility and resistance to moisture.
Can sealants be used outdoors?
Yes, exterior sealants are designed to withstand weather conditions and provide long-lasting protection.