Best Weatherproof Silicone Sealant Clear of 2025
Last updated on 15/09/2025
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Best Choice
1
UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 389g Cartridge
Unibond
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Unibond
UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 389g Cartridge
Why we love it
- Highly durable and resilient.
- Ideal for all weather.
- Superior wet surface adhesion.
Main Highlights
- Bonding & Sealing - This premium polymer-based sealant is suitable for bonding and sealing joints indoors and outdoors. Ideal for windows, doors, and facades
- Durable - This waterproof and weather-resistant joint sealant cures in approximately 24 hours. Suitable for indoor and outdoor use achieving long-lasting results
- Wet surface adhesion - When fully cured, this polymeric sealant is highly resilient and it provides stronger adhesion to a wide range of damp and wet surfaces than silicone sealants
- Polymer technology - Thanks to unique technology, the joint filler is impact and shock-resistant for the toughest repair jobs, and will not shrink over time
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Value for Money
2
STYX Clear Sealant Waterproof, Window Sealers, Outdoor Sealer for Leaks Concrete Glass Metal, Shower Sealant, Marine Grade, Aquatic Hybrid Adhesive, Caulking, MS Polymer Clear Adhesive, 300ml
STYX
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STYX
STYX Clear Sealant Waterproof, Window Sealers, Outdoor Sealer for Leaks Concrete Glass Metal, Shower Sealant, Marine Grade, Aquatic Hybrid Adhesive, Caulking, MS Polymer Clear Adhesive, 300ml
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Why we love it
- Powerful for any surface.
- Cures underwater in 24 hours.
- Invisible and seamless finish.
Main Highlights
- ALL-PURPOSE WATERPROOF SEALANT: STYX clear sealant is a silyl polyether polymer that delivers flexible, watertight bonds for indoor and outdoor use. Use as a clear bathroom sealant waterproof, shower sealant, or outdoor sealant. It waterproofs concrete, glass, metal, acrylic, fiberglass, and vinyl. This liquid adhesive sealant works on a wide range of surfaces, making it essential for sealing and waterproofing projects.
- POWERFUL LEAK SEALER FOR ANY SURFACE: Fix leaks fast with STYX’s high-performance clear waterproof sealant that bonds to wood, concrete, plastic, and more. Use it as a tile sealant, kitchen sink sealant, or toilet sealant—it also works great as a wall filler or patio sealer. Designed for both indoor and outdoor use, this durable adhesive sealant remains invisible thanks to its clear finish and is suitable for marine applications once cured.
- UNDERWATER CURING & WILDLIFE-SAFE FORMULA: STYX is a marine grade hybrid sealant and adhesive that cures underwater in 24 hours—ideal for leak sealing and waterproofing in constantly wet or submerged areas. Made with advanced MS Polymer technology, it’s safe for aquatic life, wildlife, and livestock once cured. This clear, durable formula bonds to glass, roof panels, windows, and more. Perfect for aquariums, fountains, and harsh marine or outdoor environments.
- INVISIBLE, STRONG BONDING POWER: STYX acts as a tough, high-performance clear adhesive that cures nearly invisible, creating seamless, professional-looking finishes. Perfect as a sealant bathroom, bathroom sealant clear, sink sealant, or tile sealant, it bonds to metal, porcelain, vinyl, GRP, and more. Whether indoors or outdoors, this clear bathroom sealant, patio sealer, or wall filler delivers a flexible, durable, and weatherproof seal that lasts.
- FLEXIBLE & DURABLE PERFORMANCE: STYX is a marine grade hybrid sealant and hybrid adhesive made with advanced MS Polymer technology for long-lasting flexibility and strength. This clear waterproof sealant outdoor bonds to rubber, fiberglass, stone, acrylic, glass, roof surfaces, and window frames. Also functions as an underwater sealant, ideal for shower sealing, kitchen sinks, and wall repairs—delivering tough, weatherproof, and reliable results.
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3
Hemway - Construction All-In-One Hybrid Polymer Sealant & Adhesive - Crystal Clear | Transparent, Anti-Mould, Waterproof & Paintable | 300 ml
Hemway
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Hemway
Hemway - Construction All-In-One Hybrid Polymer Sealant & Adhesive - Crystal Clear | Transparent, Anti-Mould, Waterproof & Paintable | 300 ml
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Why we love it
- Resistant to Mould and Water.
- Advanced, High-Grab Polymer Formulation.
- Eco-friendly and Fast Curing.
Main Highlights
- HYBRID POLYMER TECHNOLOGY: All-in-one technology combines the flexibility of silicone, with the paintability of acrylic caulk & the high-strength seal of adhesives; ideal for construction, renovation, finishing & fixing. Hemway is a British brand and we manufacture our products to the highest standards of quality.
- VERSATILE USE: Delivers a crystal clear, transparent finish on wood, glass, plastic, metal, PVC & concrete, plus compatible with water-based paints; an ideal floor, tile, bath, window, wall, door, shower, toilet, roof & gutter leak sealant.
- ANTI-MOULD & WATERPROOF: Our unique non-shrink formula is anti-mould, waterproof, weatherproof, chemical & UV resistant, offering a durable, long-lasting finish that is resistant against fading & stains.
- ECO-FRIENDLY: This vegan & cruelty-free adhesive & sealer is more environmentally safe than other silicone alternatives; a solvent-free, odourless, non-toxic & low VOC product.
- QUICK CURE & HIGH COVERAGE: Covers a 6 mm bead x 9.25 mm length & fast curing within 24 hours at 23°C, with 50% R/H; provides resistance from -50°C to 120°C, making it suitable for many conditions, including high-humidity areas.
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4
12X Everbuild General Purpose Clear Silicone Sealant Anti Fungal
Everbuild
6% Off
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Everbuild
12X Everbuild General Purpose Clear Silicone Sealant Anti Fungal
6% Off
Why we love it
- Eco-friendly and innovative solutions.
- Boosts energy efficiency sustainably.
- Enhances durability and aesthetics.
Main Highlights
- Permanently flexible
- Anti-fungal formula
- Quick curing - low dirt pick up
- Low viscosity for fast application
- High strength waterproof seal
- Movement Accommodation +/- 12.5% EN15651-1
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5
EVO-STIK Multipurpose Silicone Sealant Clear - Waterproof - Mould Resistant - Lasts Up To 25 Years - Interior and Exterior Use
EVO-STIK
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EVO-STIK
EVO-STIK Multipurpose Silicone Sealant Clear - Waterproof - Mould Resistant - Lasts Up To 25 Years - Interior and Exterior Use
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Why we love it
- Mould resistant for longevity.
- Versatile for various surfaces.
- Clear finish looks clean.
Main Highlights
- EVO-STIK Multipurpose Silicone Sealant, High quality, waterproof sealant that does not crack, shrink or discolour
- Suitable for interior and exterior use
- No more unsightly mould – Contains a fungicide to inhibit mould growth
- Suitable materials: Non-porous surfaces – glass, stainless steel, ceramics, plastic baths and fittings, vitreous enamel, gloss painted surfaces and more
- Contents: 1x EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, For Interior and Exterior Use, Colour: Clear
- Excellent adhesion to most surfaces
- Waterproof and mould resistant
- Good movement accomodation
- Interior and exterior use
- Lasts up to 25 years
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6
Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml
Gorilla
38% OffFree Shipping
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Gorilla
Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml
38% OffFree Shipping
Why we love it
- Fast set in 30 minutes.
- Repels mold and mildew.
- Works on multiple surfaces.
Main Highlights
- FAST SET - Can be exposed to water after just 30 minutes
- REPELS MOULD & MILDEW - Long lasting performance
- MULTI SURFACE - For use on Porcelain, Metal, Vinyl, Laminate, Stone, Ceramic, Stainless Steel, Granite, Wood, Glass
- DURABLE FORMULA - Won't yellow, shrink or crack over time
- PREPARATION: All surfaces should be clean, dry and free of old sealant. For gaps larger than 12 mm, use a backer rod to fill the gap. Best results achieved if applied above 5°C.
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7
300g Invisible Waterproof Sealant, Anti-Leaking Clear Insulation Sealant Super Strong Anti-Leakage Agent, For Roof,Bathroom, Patio Sealer Outdoor, Indoor
ROUJAENIN
17% OffFree Shipping
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ROUJAENIN
300g Invisible Waterproof Sealant, Anti-Leaking Clear Insulation Sealant Super Strong Anti-Leakage Agent, For Roof,Bathroom, Patio Sealer Outdoor, Indoor
17% OffFree Shipping
Why we love it
- Efficient leak prevention guaranteed.
- Works on all surfaces.
- Wide temperature resistance.
Main Highlights
- [EFFICIENT LEAK PREVENTION]] - Waterproofing clear silicone sealant penetrates into joints, cracks, and then seal all damaged surfaces. The clear waterproof sealant forms a thin film that cuts out air, water and moisture. Does not affect appearance
- [WORKS ON ALL SURFACE] - this Transparent waterproof seam sealer works on wood, tiles, brick,marble, concrete, roof, outdoor or indoor.
- [WIDE RAGE TEMPERATURE RESISTANT]- waterproof sealant glue has a effective adhesion and seem sealing effect, innovative sealing powerful paste will not melt in the hot summer, and will not crack or peel in the cold winter. This adhesive sealant becomes clear after use and will not turn yellow over time
- [PROTECTIVE FILM]- Strong adhesion and sealing effect of clear silicone sealant waterproof , the effect is immediate and lasts for many years. this clear leak sealer can protect the surface from water and various liquids.
- [EASY TO USE ] - just brush 1 or seral times on the desired surface with bathroom sealant, and it's done. Immediately and effectively seal leaks and solves the leaking problems in cracked walls, ceilings, roofs, patio.,etc.
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8
Soudal ALL WEATHER SEALANT Weatherproof Roofing Silicone 300ml - CLEAR
Soudal
Soudal
Soudal ALL WEATHER SEALANT Weatherproof Roofing Silicone 300ml - CLEAR
9
Clear Silicone Sealant | Multipurpose Waterproof Silicone Sealant CLEAR | Transparent Bathroom & Kitchen silicon sealant x 2 70g Tubes
ABL Supplies
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ABL Supplies
Clear Silicone Sealant | Multipurpose Waterproof Silicone Sealant CLEAR | Transparent Bathroom & Kitchen silicon sealant x 2 70g Tubes
Free Shipping
Why we love it
- Easy application, no tools needed.
- Waterproof, prevents mold growth.
- Non-toxic and eco-friendly.
Main Highlights
- Easy Application: Comes in ready-to-use tubes with a precision nozzle for easy application, ensuring a smooth, even seal without the need for professional tools AND NO GUN NEEDED! Multipurpose Waterproof Clear Silicone Sealant.
- Waterproof & Mold Resistant: Provides a waterproof seal that prevents water damage and mold growth, ensuring durability in wet conditions like showers and sinks. Waterproof Sealant ideal for Kitchens and Bathrooms
- Versatile & Clear: Ideal for a variety of applications including bathrooms, showers, kitchens, and glass surfaces, maintaining a clear and neat finish. Easy to Apply, Ideal for Small Jobs
- Eco-Friendly & Safe: Formulated to be non-toxic and eco-friendly, it is safe to use in sensitive environments like aquariums and kitchens, without compromising on quality or performance. 2 x 70g Tubes clear silicone sealant
- High Adhesion: Bonds strongly to most surfaces including tiles, glass, metal, and plastic, making it a reliable choice for both household repairs and professional installations. All Pupose silicone selant clear
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10
BOND IT CLEAR HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank Adhesive
BONDIT
8% Off
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BONDIT
BOND IT CLEAR HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank Adhesive
8% Off
Main Highlights
- BOND IT CLEAR HA6 RTV Silicone Sealant Marine Aquarium Safe Water Fish Tank Adhesive
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