Top 10 Roof Sealant

Discover our curated selection of high-quality products.

Last update: 04-07-2025

Sika Stixall – Extreme Power Sealant And Adhesive – Waterproof – Black – 290ml

HIGH-PERFORMANCE – Crafted using hybrid polymer technology, it has incredible initial grab strength, zero sagging and fills gaps with ease.
IDEAL FOR INTERIOR AND EXTERIOR USE DEPENDING ON THE APPLICATION – Resistant to weather, water, temperature and chemicals, you can use this as an adhesive inside and out plus as an interior sealant. (NOTE: Crystal Clear colour is not suitable for exterior use)
VERSATILE – Has incredible high-grab adhesion to a wide range of materials, including glass, metals, plastic, concrete, wood, and so much more – it bonds even underwater or in the rain.
PROFESSIONAL FINISH – This quick-curing mix develops a skin in only 10 minutes and is paintable once completely dry with water-based paints for a high-quality finish to your DIY projects.
EASY TO APPLY – Insert the cartridge into your caulking gun, snip the tip and apply as needed to your chosen materials.
LONG-LASTING – This completely waterproof adhesive and sealant is resistant to temperature extremes between -40°C and +100°C, as well as a range of chemicals once fully cured, meaning it can be considered for durable applications.
MULTIPLE COLOURS – Available in Black, Brown, Anthracite, White, Crystal Clear and Grey

9.5/10

Polar Premium Leak Seal Clear Paint - 500ml - Instant Waterproof Roof Sealant - Ideal for Leaks, Cracks & Roof Repair - Concrete, Brick, Metal, Drainpipes & Gutters - Easy to Apply

Waterproof Seal: The ideal solution for instant waterproof sealant on leaks or cracks. Apply roof sealant paint to the affected area to seal. The paint forms a waterproof membrane to keep water out. Easy to apply with a brush or roller, ensuring complete coverage. Durable and resilient, it safeguards against damage from severe weather.
One Coat Repair: Don’t waste any time sealing cracks or leaks. Polar LeakFix works in one coat, This flat roof sealant paint provides instant repair on flat or pitched roofs. With 500ml covering up to 0.5㎡, its quick-drying formula ensures minimal downtime. Ideal for both residential and commercial use, offering a reliable solution for all your waterproofing needs.
Instant Protection: Formulated for tough, hard-wearing and instant protection. This clear sealant is perfect for emergency repairs or maintenance on drain pipes, gutters, and roofs. It gives long-lasting protection to cracked surfaces and performs reliably in all weather conditions, ensuring peace of mind.
Easy To Apply: No primer needed before applying Polar Leakfix. Apply waterproofing sealant immediately for instant waterproof protection. Clear the affected area of moss, debris, and surface water, oil, or grease thoroughly. The sealant becomes touch dry within 3-4 hours. Designed for DIY enthusiasts and professionals, achieving thorough sealing.
Multi-Purpose Use: Ideal water sealant for felt shed roofs, asphalt, bitumen surfaces, gutters, drainpipes, concrete, brick, GRP, fiberglass, and metal roofing. Available in Clear, Grey, and Black. Ensures versatility across applications, with a seamless finish for robust protection. Please note: Our paint is not compatible with copper surfaces.

9.4/10

JENOLITE Stop Leak Sealer Spray | CLEAR | 400ml | Leak Sealer for Gutters and Flat Roofs | Waterproof Gutter Sealant | Fills, Seals & Stops Leaks | Long Lasting Waterproof Sealant

ULTIMATE WATERPROOF SEALANT: Stop Leak Sealer Spray provides advanced, long-lasting leak protection for gutters, flat roofs, and more. Jenolite's waterproofing sealant can be trusted to act as an instant leak sealer. Perfect for fast-fix repairs and protection for guttering, flat roofs, shed roofs, drain pipes, caravans and more.
VERSATILE USAGE: Formulated for multi-surface application, Jenolite Stop Leak Sealer Spray can be used on a wide range of surfaces, including plastic, tile, metal, UPVC, Concrete, roofing felt and more. Ideal for use as a leaking gutter seal, the waterproof sealant spray is also perfect for fixing leaks in felt roofs, conservatories, sheds, etc.
WEATHER-RESISTANT DURABILITY: The waterproofing spray is designed to withstand extreme weather conditions UV rays and extreme temperatures, this premium leak sealer maintains its strength and flexibility over time, keeping your gutters and roofs leak-free year-round.
QUICK & EASY APPLICATION: Simple to apply, the waterproofing spray offers a fast solution to dealing with small cracks and leaks, just aim and spray, building up several layers for maximum effect. (It is not recommended for bird baths, ponds, central heating systems or pressurised plumbing systems)
MADE IN BRITAIN: Pioneers in surface treatment and protection ,JENOLITE’s Stop Leak Sealer Spray combines cutting-edge innovation with decades of expertise to deliver a product you can rely on for lasting, professional-grade results. Available in CLEAR | BLACK | WHITE

9.3/10

Everbuild Everflex 450 Premium+ Builders Silicone Sealant – Waterproof Seal – Suits Most Building Materials – Internal and External Use – Brown – 300ml

MULTI-PURPOSE – This strong, neutral cure low modulus sealant is ideal for use on expansion joints. It's perfect for internal and external perimeter pointing around PVCu, wood and other window frames.
VERSATILE – Adheres and seals to most substrates including glass, metals, plastic, and wood. It's compatible with polycarbonate, acrylic and lead and has low dirt pick-up for work with PVCu.
HIGH RESISTANCE – High resistance to plasticiser migration. Suitable for use over water-based and solvent-based paints.
FLEXIBLE – Ideal as an expansion joint sealant with a +/- 25% flexibility factor, certified for façade, glazing, cold climate and sanitary applications.
WATERPROOF – Forms a permanent waterproof seal for parapets and roofs and joint sealing to pre-formed panels with excellent UV stability. It provides general glazing, sealing and draughtproofing.
RANGE OF COLOURS – Also available in buff, black, grey, oak, translucent, and white.
Silicone 450 Builders Silicone
Size: 300ml
Brand: Everbuild

9.1/10

Bostik Flashband Self Adhesive Flashing Tape for Roofs, Provides an Instant Watertight Seal, Colour: Grey, 100mm x 10m

FLEXIBLE BITUMEN STRIP - Bonds instantly to most building materials to provide a permanent, watertight seal in all climates
EASY TO APPLY – Can be applied using just hand pressure and a seam roller, No special equipment needed
USES - Repairing lead flashing, Sealing valley gutters, Mending leaks in drain pipes and guttering, and much more
BONDS TO MOST MATERIALS - Brick, masonry, slates, metal, terracotta tiles, roofing felt and more
CONTENTS - 1x Bostik Flashband Self Adhesive Flashing Tape for Roofs, Colour: Grey, 100mm x 10m

9.0/10

DIY Doctor Waterproof Tape for Leaks - Butyl Roof Sealant Tape - Outdoor Waterproof Repair Tape with Aluminium Foil – 50mm x 5m

PROFESSIONAL-GRADE BUTYL TAPE FOR DEPENDABLE LEAK SEALING: Seal leaks fast with high-performance waterproof tape trusted by professionals. Ideal for fixing roofs, gutters, and plumbing joints, it ensures long-lasting, watertight results.
MULTI-SURFACE COMPATIBILITY FOR VERSATILE REPAIRS: Designed to bond with metal, plastic, concrete, glass, and more, this repair tape handles roof leaks, window frames, pipes, and outdoor fixes effortlessly—making it an essential for any DIY project.
MESS-FREE APPLICATION, NO STICKY RESIDUE:Apply easily without frustration! This butyl tape sticks firmly without creating messes or leaving behind residue, giving you a clean, professional seal every time.
BUILT TO WITHSTAND ANY WEATHER: Rain, snow, or heat—this tape performs! With a weatherproof design (-15°C to 45°C), it stays durable through temperature swings, preventing peeling or damage over time.
COMPACT YET POWERFUL ADDITION TO ANY TOOLKIT: Keep this 50mm x 5m roll handy for emergencies or planned repairs. From sealing downpipes and gutters to fixing sheds or skylights, it’s a repair essential you can count on.

8.9/10

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

MULTI-PURPOSE – Adheres to most common roofing surfaces including bitumen, asphalt, felt, metals, slate and wood.
VERSATILE – Use this butyl sealant to fill and seal gaps or cracks in roofs, joint seal gutters and down pipes, or stick down loose roofing felt.
WEATHER RESISTANT – Can be applied in most weather conditions including heavy rain.
SEMI-DRYING – Remains permanently plastic under a surface skin.
EASY TO APPLY – Apply using a caulk, sealant/adhesive cartridge application gun, such as the Everbuild Power Pro Heavy Duty Sealant/Adhesive Cartridge Applicator Gun.
Roof And Gutter Sealant
Size: 310ml
Brand: Everbuild

8.8/10

Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre

QUICK DRYING FORMULA – This brushable bitumen compound dries fast and is ready for a second coat in 24 hours.
SUPER STRONG FINISH – Solvent-based formula with added fibres to reinforce the strength and weatherproofing of the coating.
IDEAL FOR WEATHERPROOFING APPLICATIONS – Designed to deliver an immediate waterproof coating to non-plastic guttering, structural steelwork and other roofing applications.
SUITABLE FOR USE ON A RANGE OF SUBSTRATES – Use it to reseal and weatherproof a range of materials, including asphalt and felt roofing, concrete decks and sheeting, metal sheeting, tiles and more.
COMPLETE WATERPROOF COATING – Versatile enough to use as a protective barrier on walls and roofs to prevent water and vapour entry.
A CHOICE OF SIZES – Available in both 5-litre and 25-litre tins to suit your project size.

8.6/10

Acrylic Waterproofing Coating Grey - 5 KG

Colour grey.
Size 5 kg.
Waterproof protection.
Can be used in damp conditions.
Coverage 1 - 2 kg per metre squared.

8.5/10

Butyl Tape for Roof and Leak Repair, Waterproof Sealing Tape Silver Aluminum Tape, for RV Repair, Window, Glass, Silicone, & EDPM Patching, and Pipe Sealing, 2inch x16feet

【Professional Repair Tape】:The professional sealing tape is suitable for your RV roofs repair, doors, windows and, prevent them from leakages, creates a water proof.sealing plumbing pipes, doors, walls, seams, DIY vents, air ducts, sprinkler HVAC systems, EPDM Roof Patching, etc.
【Long-lasting Performance】:Our Butyl Tape is made of pure butyl rubber, thicker and heavier ,Waterproof and high temperature resistant, UV resistant without cracking and deformation, and provides a better sealing result and Long-lasting service time.
【Easy To Use】:Just peel off the release film and apply the butyl sealant tape to anywhere needed.No need to do Extra Waterproof Coating. Super sticky and flexible features allow you to install it on most of surfaces, perfectly on the flat, curve or corner surfaces.
【Wide Applicability】:Our butyl tape is adapt to most kinds of surfaces and weather. such as metal, tiles, shingle, aluminum, gypsum board, wood, fiberglass, brick, concrete and etc. It is your best chioce for Home, Auto, Outdoors and etc.
【Trusted Brand】:TAPEBEAR is a brand specializing in the production of tapes, dedicated to making excellent tapes. We have full confidence in the quality of butyl tapes, which will be your best choice.

8.2/10

Cromar Grey Cromapol Acrylic Waterproofing Roof Sealant Fibre Reinforced Roof Coat 5Kg

Gorilla 84756 Waterproof Coat & Seal Black 473ml

Cromar Grey Cromapol Acrylic Fibre Reinforced Roof Coat Sealant Paint 2 x 5Kg

5 Litre All Weather Roofing Compound Waterproof ROOF Coating

All Weather Roofing Compound Bitumen Waterproof Roof Coating 25 Litre

Polar Premium Grey Instant Waterproof Felt Roof Sealant Paint 500ml, Emergency Felt Roof Repair Sealer for All Felt Roofs

Everbuild Everflex Lead Mate Sealant – Exceptional Adhesion – Neutral Cure – Lead Grey – 295ml

Spray & Seal Leak Fix Stop Sealant Instant Waterproof Gutter Roof Pipe - Black

UniBond 2079110 Roof & Gutter Sealant, Long-Lasting Butyl Sealant for Roofing Applications, Waterproof Sealant for Outdoor Use, Flexible & Durable Roof Sealant, 1x504g Cartridge, Black

Supraseal - Duct Tape, Heavy Duty Roof Sealant, UV Resistant and Waterproof Tape, Outdoor Use and Indoor, Multipurpose for Leaks, Pipes, and More, Durable Butyl Gaffer Tape (Grey) (50mm x 5m)

Top 10 Roof Sealant

Sika Stixall – Extreme Power Sealant And Adhesive – Waterproof – Black – 290ml

Polar Premium Leak Seal Clear Paint - 500ml - Instant Waterproof Roof Sealant - Ideal for Leaks, Cracks & Roof Repair - Concrete, Brick, Metal, Drainpipes & Gutters - Easy to Apply

JENOLITE Stop Leak Sealer Spray | CLEAR | 400ml | Leak Sealer for Gutters and Flat Roofs | Waterproof Gutter Sealant | Fills, Seals & Stops Leaks | Long Lasting Waterproof Sealant

Everbuild Everflex 450 Premium+ Builders Silicone Sealant – Waterproof Seal – Suits Most Building Materials – Internal and External Use – Brown – 300ml

Bostik Flashband Self Adhesive Flashing Tape for Roofs, Provides an Instant Watertight Seal, Colour: Grey, 100mm x 10m

DIY Doctor Waterproof Tape for Leaks - Butyl Roof Sealant Tape - Outdoor Waterproof Repair Tape with Aluminium Foil – 50mm x 5m

Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Excellent Weathering Properties – Black – 295 ml

Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre

Acrylic Waterproofing Coating Grey - 5 KG

Butyl Tape for Roof and Leak Repair, Waterproof Sealing Tape Silver Aluminum Tape, for RV Repair, Window, Glass, Silicone, & EDPM Patching, and Pipe Sealing, 2inch x16feet

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Cromar Grey Cromapol Acrylic Waterproofing Roof Sealant Fibre Reinforced Roof Coat 5Kg

Gorilla 84756 Waterproof Coat & Seal Black 473ml

Cromar Grey Cromapol Acrylic Fibre Reinforced Roof Coat Sealant Paint 2 x 5Kg

5 Litre All Weather Roofing Compound Waterproof ROOF Coating

All Weather Roofing Compound Bitumen Waterproof Roof Coating 25 Litre

Polar Premium Grey Instant Waterproof Felt Roof Sealant Paint 500ml, Emergency Felt Roof Repair Sealer for All Felt Roofs

Everbuild Everflex Lead Mate Sealant – Exceptional Adhesion – Neutral Cure – Lead Grey – 295ml

Spray & Seal Leak Fix Stop Sealant Instant Waterproof Gutter Roof Pipe - Black

UniBond 2079110 Roof & Gutter Sealant, Long-Lasting Butyl Sealant for Roofing Applications, Waterproof Sealant for Outdoor Use, Flexible & Durable Roof Sealant, 1x504g Cartridge, Black

Supraseal - Duct Tape, Heavy Duty Roof Sealant, UV Resistant and Waterproof Tape, Outdoor Use and Indoor, Multipurpose for Leaks, Pipes, and More, Durable Butyl Gaffer Tape (Grey) (50mm x 5m)

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