Check local branch stock
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![BOSTIK%20PRO%20SEALANTS%20-%20S30%20SILICONE%20310ML%2030623035%2C%2030623038%2C%2030623293.png]( "BOSTIK%20PRO%20SEALANTS%20-%20S30%20SILICONE%20310ML%2030623035%2C%2030623038%2C%2030623293.png")
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... -
![BOSTIK%20PRO%20SEALANTS%20-%20S30%20SILICONE%20310ML%2030623035%2C%2030623038%2C%2030623293.png]( "BOSTIK%20PRO%20SEALANTS%20-%20S30%20SILICONE%20310ML%2030623035%2C%2030623038%2C%2030623293.png")
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... -
![BOSTIK%20PRO%20SEALANTS%20-%20S31%20SILICONE%20310ML%2030623019%2C%2030623018%2C%2030623017.png]( "BOSTIK%20PRO%20SEALANTS%20-%20S31%20SILICONE%20310ML%2030623019%2C%2030623018%2C%2030623017.png")
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... -
![BOSTIK%20PRO%20SEALANTS%20-%20S41%20SILICONE%20310ML%2030623109%2C%2030623107%2C%2030623106%2C%2030623105.png]( "BOSTIK%20PRO%20SEALANTS%20-%20S41%20SILICONE%20310ML%2030623109%2C%2030623107%2C%2030623106%2C%2030623105.png")
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... -
![BOSTIK%20PRO%20SEALANTS%20-%20S41%20SILICONE%20310ML%2030623109%2C%2030623107%2C%2030623106%2C%2030623105.png]( "BOSTIK%20PRO%20SEALANTS%20-%20S41%20SILICONE%20310ML%2030623109%2C%2030623107%2C%2030623106%2C%2030623105.png")
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... -
![C05-Dow-Corning-791-Weatherproofing-Black-Silicone.jpg.jpeg]( "C05-Dow-Corning-791-Weatherproofing-Black-Silicone.jpg.jpeg")
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... -
![Geocel%20310ml%20Clear%20Dow%20Corning%20785%20Sanitary%20Silicone%20Sealant.jpg.jpeg]( "Geocel%20310ml%20Clear%20Dow%20Corning%20785%20Sanitary%20Silicone%20Sealant.jpg.jpeg")
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... -
![Geocel%20Trade%20Mate%20Frame%20Seal%20Clear%20310ml.jpg.jpeg]( "Geocel%20Trade%20Mate%20Frame%20Seal%20Clear%20310ml.jpg.jpeg")
Geocel Trade Mate Frame Seal Clear 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. -
![Trade-Mate-White-Sanitary-Seal.jpg.jpeg]( "Trade-Mate-White-Sanitary-Seal.jpg.jpeg")
Geocel Trade Mate Sanitary Sealant Clear 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... -
![128442.jpg.jpeg]( "128442.jpg.jpeg")
Soudal Premium Building Silicone Clear 290ml (128442)
High quality low modulus neutral cure silicone sealant for glazing construction and industrial sealing. Very fast skinning time and final cure with excellent toolability and primerless adhesion on... -
![128440.jpg.jpeg]( "128440.jpg.jpeg")
Soudal Premium Building Silicone White 290ml (128440)
High quality low modulus neutral cure silicone sealant for glazing construction and industrial sealing. Very fast skinning time and final cure with excellent toolability and primerless adhesion on... -
![146067.jpg.jpeg]( "146067.jpg.jpeg")
Soudal Silirub N Anthracite RAL 7016 UK 300ml (146067)
General purpose, low modulus, neutral cure silicone sealant that has a very fast skinning time and final cure. Primerless adhesion on most common construction materials. Resistant to UV, rain, snow,... -
![122401.jpg.jpeg]( "122401.jpg.jpeg")
Soudal Silirub N Black UK 300ml (122401)
General purpose, low modulus, neutral cure silicone sealant.Very fast skinning time and final cure. Excellent toolability. Primerless adhesion on most common construction materials. Resistant to UV,... -
![118985.jpg.jpeg]( "118985.jpg.jpeg")
Soudal Silirub N Brilliant White UK 300ml (118985)
General purpose, low modulus, neutral cure silicone sealant.Very fast skinning time and final cure. Excellent toolability. Primerless adhesion on most common construction materials. Resistant to UV,... -
![152988.jpg.jpeg]( "152988.jpg.jpeg")
Soudal Stay Fresh Acetoxy Anti-Mould Silicone Clear 290ml (152988)
The ultimate anti-mould sealant by Soudal is a neutral cure silicone. Contains powerful anti-fungicidal agents. Very fast skinning time and final cure. Thick-bodied. Primerless adhesion on all... -
![152987.jpg.jpeg]( "152987.jpg.jpeg")
Soudal Stay Fresh Acetoxy Anti-Mould Silicone Ice White 290ml (152987)
The ultimate anti-mould sealant by Soudal is a neutral cure silicone. Contains powerful anti-fungicidal agents. Very fast skinning time and final cure. Thick-bodied. Primerless adhesion on all... -
![344022-CAR_StayFresh_Acetoxy_Clear_290ml_TwinPack0052%20copy.jpg.jpeg]( "344022-CAR_StayFresh_Acetoxy_Clear_290ml_TwinPack0052%20copy.jpg.jpeg")
Soudal Stay Fresh Anti-Mould Silicone Clear Twin Pack
Soudal Stay Fresh is a high-quality, neutral, elastic one-component silicone based joint sealant. Primerless adhesion on all sanitary materials, including plastics. Highly elastic. Resistant to UV,... -
![344021-CAR_StayFresh_Acetoxy_IceWhite_290ml_TwinPack0052%20copy.jpg.jpeg]( "344021-CAR_StayFresh_Acetoxy_IceWhite_290ml_TwinPack0052%20copy.jpg.jpeg")
Soudal Stay Fresh Anti-Mould Silicone Ice White Twin Pack
Soudal Stay Fresh is a high-quality, neutral, elastic one-component silicone based joint sealant. Primerless adhesion on all sanitary materials, including plastics. Highly elastic. Resistant to UV,...
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:
- Gap-filling foam
- Insulation foam
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.
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.