null

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.

Filters

Check local branch stock

  • Evo-Stik%20Bostik%20350ml%20Gripfill%20Solvent%20Based%20Adhesive.jpg.jpeg

    Evo-Stik Gripfill Grab Adhesive The Nations No. 1 350ml

    Gripfill is a multi-purpose gap filling adhesive that bonds to almost any surface. It has excellent strength and is suitable for interior and exterior use providing the bond is covered.
  • 152665.jpg.jpeg

    Soudal Grip All Solvent Free White 290ml (152665)

    Soudal Grip All solvent free grab adhesive in white for strong interior bonding applications. Buy online today.
  • C4%20Pinkgrip%20Adhensive%20%28Solvent%20Free%29.jpg.jpeg

    Everbuild C4 Pinkgrip Adhensive (Solvent Free)

    Pinkgrip SF is a radically new direct bond adhesive with all the legendary grabbing performance of original Pinkgrip but in a solvent free formula.
  • C06%20Contractors%20White%20Decorators%20Caulk.jpg.jpeg

    Geocel Contractors Decorators Caulk White 380ml

    Geocel Contractors Decorators Caulk is a one part, easy to apply flexible acrylic filler which is ideal for sealing gaps and cracks prior to decorating. It has been specifically developed for the painting and decorating contractor where large volume...
  • Pinkgrip.jpg.jpeg

    Everbuild Pinkgrip Building Adhesive 350ml

    Pinkgrip will stick just about anything on a building site that needs sticking. Its amazing grabbing strength not only removes the need to pin under the workpiece to prevent slumping, but its revolutionary initial Direct Bond eliminates the need for...
  • 350ml-Solvent-Free-Evo-Stik-Gripfill.jpg.jpeg

    Evo-Stik Gripfill Solvent Free Grab Adhesive White 350ml

    Suitable for internal use, Bostik'sEvo-StikGripfill 350ml is an adhesive that is used to fill gaps. The product is solvent-free and suitable for bonding a wide range of materials together, including: wood, ceramic, plasterboard, uPVC, concrete and glass.
  • 152989.jpg.jpeg

    Soudal Flexible Decorators Caulk Extra White Paintable 290ml (152989)

    Soudal flexible paintable decorators caulk in white for long lasting interior gap filling. Buy online today.
  • untitled-101-Edit.jpg.jpeg HD%20ORANGE%20SCRIM%20-%20IMAGE%202.png

    Walther Strong Heavy Duty Orange Scrim Tape 90m x 50mm

    Our HD Orange Scrim Tape has been uniquely designed to meet the needs of the professional plasterer. As a professional, you need the best products that are easy to work with and do exactly what they say! This latest product was designed by YOU! The end...
  • Hansil-Expanding-Filler-Foam-750ml.jpg.jpeg

    Geocel Contractor Straw Foam 750ml

    Geocel Contractor Gun Foam is a polyurethane foam suitable for gap filling around window & door frames.
  • 30609361.jpg.jpeg

    Bostik Evo-Stik Gripfill Xtra Adhesive C30 Buff (30609361)

    When it comes to choosing an adhesive, over 80% of tradespeople want instant hold, no pinning and no slippage. EVO-STIK GRIPFILL XTRA is a new high strength, instant grip adhesive that will stick to almost all building surfaces with no need for pinning...
  • STIXWE%20-%20PCR.jpg.jpeg Fish-Friendly.jpg.jpeg

    Everbuild Stixall White 290ml (STIXWE)

    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...
  • 121638.jpg.jpeg

    Soudal Decorators Caulk White 290ml (121638)

    Soudal decorators caulk in white supplied in a 290ml cartridge for filling cracks and gaps before painting. Buy online today.
  • 116744.jpg.jpeg

    Soudal Handheld Gap Filler Trade Expanding Foam 750ml (116744)

    Soudal handheld trade expanding gap filler foam in a 750ml can for sealing and insulating jobs. Buy online today.
  • Trade-Mate-Black-Roofers-Seal.jpg.jpeg

    Geocel Trade Mate Roofers Seal Black 310ml

    Geocel Trade Mate Roofers Seal is a single component, high performance elastomeric sealant and can be used for most roofing applications and repairs. It will adhere to various roofing substrates including, lead, bitumen and galvanised steel. It is ideal...
  • 121644.jpg.jpeg

    Soudal Multi-Purpose Silicone Clear 270ml (121644)

    Soudal multi purpose clear silicone sealant in a 270ml cartridge for waterproof sealing. Buy online today.
  • PE310_w1.jpg.jpeg

    Timco PE Chemical Resin 300ml (PE310)

    Polyester resin is a two component, mix in the nozzle resin with European approval. Suitable for many kinds of solid and hollow masonry. Simple to apply by pumping a required resin quantity into the hole.
  • EVO-STIK%20THE%20DOGS%20BLACK%20290ML%2030627544.png

    Evo-Stik 'The Dogs' Adhesive & Sealant Hybrid Black 290ml (30627544)

    EVO-STIK THE DOGS is a versatile, all-weather, advanced hybrid SMP technology for interior use. EVO-STIK THE DOGS provides a strong, flexible bond for most building materials and can even be used on wet surfaces. EVO-STIK THE DOGS cures under the...
  • 116824.jpg.jpeg

    Soudal Multi-Purpose Silicone Black 270ml (116824)

    Soudal multi purpose black silicone sealant in a 270ml cartridge for durable flexible sealing. Buy online today.
  • Trade-Mate-Black-Roofers-Seal.jpg.jpeg

    Geocel Trade Mate Roofers Seal Grey 310ml

    Geocel Trade Mate Roofers Seal is a single component, high performance elastomeric sealant and can be used for most roofing applications and repairs. It will adhere to various roofing substrates including, lead, bitumen and galvanised steel. It is ideal...
  • H18432-Pack-A-2021.jpg.jpeg

    Hippo Plaster Scrim & Jointing Tape 90m x 50mm (H18432)

    This special, easy to apply plaster scrim tape is available in two widths. Use it for sealing joints between plasterboard panels to prevent future cracks and helping to create a smooth plaster finish. This 90m roll uses sticky fibrous tape for...
  • CTEC_DModel_CT1_MiB%26Colour_v2_020321_NUP_Black.png

    CT1 Construction Sealant & Adhesive Black 290ml (535106)

    CT1 is the only product in the market with TRIBRID Technology, making it 360% stronger than a traditional Hybrid Polymer. If you're looking for a clean, sealant, look no further than CT1 White. This pristine construction sealant creates highly durable...
  • C23-Top-Gun-All-Purpose-Clear-Silicone-Sealant.jpg.jpeg

    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.
  • 116745.jpg.jpeg

    Soudal Gun Grade Gap Filler Expanding Foam Champagne 750ml (116745)

    Soudal gun grade expanding gap filler foam in a 750ml can for professional sealing applications. Buy online today.
  • 130474.jpg.jpeg

    Soudal Mitre Bonding Kit Superglue & Activator Clear (130474)

    Soudal mitre bonding kit including superglue and activator for rapid mitre joint bonding. 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.