Best Exterior Sealant Waterproof Paintable of 2025
Last updated on 26/09/2025
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Best Choice
1
BONDIFY Paintable Black Sealant Waterproof, Window Frame Sealant, 500g x 3PCs, 100% SOLVENT-FREE Black Exterior Siliconised Acrylic, Mastic for Filling Cracks and Gaps, Bathroom, Kitchen, Door
BONDIFY
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BONDIFY
BONDIFY Paintable Black Sealant Waterproof, Window Frame Sealant, 500g x 3PCs, 100% SOLVENT-FREE Black Exterior Siliconised Acrylic, Mastic for Filling Cracks and Gaps, Bathroom, Kitchen, Door
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Why we love it
- Flexible and paintable finish.
- Ideal for various materials.
- Mildew resistant and non-toxic.
Main Highlights
- BONDIFY SILICONISED SEALANT (BLACK - 3PCs) : BONDIFY paintable sealant is a general purpose, water based sealant for caulking, sealing and decoration uses in waterproofing, gap filling, wood frame joints, doors & windows sash, drywall, plaster, marble, tile & brick works, painters sealant for interior works.
- KEY FEATURES : Its siliconized structure, makes it possible to handle movement up to 15%. Water based, Mildew resistant, Non-toxic No Odour. Very low VOC content. Over Paintable. Environmental friendly, easily clean up with water.
- APPLICATION AREAS-1 :Sealing of low movement joints between various construction materials(wood, concrete, brick etc.) It’s ideal for sealing and filling gaps, cracks, and joints around windows, frames, doors, baseboards, drywall, plaster, woodwork, moldings, and trim.
- APPLICATION AREAS-2 : Used in areas that are not in direct contact with water, like along the edges of countertop, backsplash, toilet seat, bathroom floor wall joint.
- STANDS OUT : BONDIFY Siliconized Sealant provides a flexible, paintable finish and is often applied to areas that require a durable, weather-resistant, and moisture-resistant seal.
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Value for Money
2
Hemway - Construction All-In-One Hybrid Polymer Sealant & Adhesive - Jet Black | Anti-Mould, Waterproof & Paintable | 300 ml
Hemway
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Hemway
Hemway - Construction All-In-One Hybrid Polymer Sealant & Adhesive - Jet Black | Anti-Mould, Waterproof & Paintable | 300 ml
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Why we love it
- Mould resistant and waterproof.
- Flexible and ultra-high strength.
- Odourless and environmentally friendly.
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 jet black 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. No primer needed.
- 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, yellowing & stains. Superior to silicone sealant and can be applied in dry, damp and wet conditions.
- 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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3
Gripbond Pro Crystal Clear High Strength Grab Adhesive Hybrid Construction Sealant Waterproof Interior Exterior Glue Instant Bond Flexible Paintable Heavy Duty Fix (1)
IMPERIAL STUDIOS
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IMPERIAL STUDIOS
Gripbond Pro Crystal Clear High Strength Grab Adhesive Hybrid Construction Sealant Waterproof Interior Exterior Glue Instant Bond Flexible Paintable Heavy Duty Fix (1)
Why we love it
- Ultra strong adhesive bond.
- Waterproof for all conditions.
- Fast setting for quick projects.
Main Highlights
- 💪 ULTRA HIGH BOND STRENGTH: Provides exceptional adhesion with bond strength up to 250kg/m², eliminating the need for mechanical fixings.
- 💧 WATERPROOF & WEATHER RESISTANT: Suitable for both interior and exterior applications, even adheres to wet or damp surfaces.
- ⚡ FAST CURING TECHNOLOGY: Quick setting formula ensures strong, durable bonds in a fraction of the time compared to standard adhesives.
- 🪵 MULTI-SURFACE COMPATIBILITY: Bonds effectively to wood, stone, glass, concrete, plasterboard, metal, insulation board, plastics, MDF and more.
- 🎨 PAINTABLE & NON-STAINING: Can be overpainted with water-based paints and won’t discolour surfaces, ideal for natural stone applications.
- 🛡️ FLEXIBLE & DURABLE: Permanently elastic, solvent-free, low odour and resistant to cracking, ensuring long-lasting performance.
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4
BONDIFY Waterproof Window Frame Sealant White 500g x 3PCs, 100% SOLVENT-FREE Paintable Silicone Sealant Acrylic, White Mastic for Filling Cracks and Gaps, Bathroom, Kitchen and Door, UPVC use
BONDIFY
6% OffFree Shipping
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BONDIFY
BONDIFY Waterproof Window Frame Sealant White 500g x 3PCs, 100% SOLVENT-FREE Paintable Silicone Sealant Acrylic, White Mastic for Filling Cracks and Gaps, Bathroom, Kitchen and Door, UPVC use
6% OffFree Shipping
Why we love it
- Flexible and paintable finish.
- Non-toxic and no odor.
- Ideal for interior use.
Main Highlights
- BONDIFY SILICONISED SEALANT (WHITE - 3PCs) : BONDIFY paintable sealant is a general purpose, water based sealant for caulking, sealing and decoration uses in waterproofing, gap filling, wood frame joints, doors & windows sash, drywall, plaster, marble, tile & brick works, painters sealant for interior works.
- KEY FEATURES : Its siliconized structure, makes it possible to handle movement up to 15%. Water based, Mildew resistant, Non-toxic No Odour. Very low VOC content. Over Paintable. Environmental friendly, easily clean up with water.
- APPLICATION AREAS -1 : Sealing of low movement joints between various construction materials(wood, concrete, brick etc.) It’s ideal for sealing and filling gaps, cracks, and joints around windows, frames, doors, baseboards, drywall, plaster, woodwork, moldings, and trim.
- APPLICATION AREAS-2 : Used in areas that are not in direct contact with water, like along the edges of countertop, backsplash, toilet seat, bathroom floor wall joint.
- STANDS OUT : BONDIFY Siliconized Sealant provides a flexible, paintable finish and is often applied to areas that require a durable, weather-resistant, and moisture-resistant seal.
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5
Injectafix Lightning Grab -Floor-FIx Pro - Premium Multi-Surface Flooring & Construction Adhesive & Sealant - Hybrid Polymer - Waterproof - Super Fast Grab, Strong, Flexible - Designed For Pro Use
INJECTA FIX
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INJECTA FIX
Injectafix Lightning Grab -Floor-FIx Pro - Premium Multi-Surface Flooring & Construction Adhesive & Sealant - Hybrid Polymer - Waterproof - Super Fast Grab, Strong, Flexible - Designed For Pro Use
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Why we love it
- Professional-grade for tough jobs.
- Bonds to various surfaces easily.
- Safe for indoor and outdoor use.
Main Highlights
- Professional-Grade Strength – Developed by flooring pros, Lightning Grab delivers instant high tack and long-lasting durability. Ideal for trade and heavy-duty applications.
- Multi-Surface Compatibility – Bonds to wood, concrete, tile, metal, plastics, marble, and stone. Perfect for skirting boards, trims, thresholds, nosings, and scotia beading.
- Use Indoors, Outdoors, Even Underwater – Adheres to damp surfaces and can be applied in wet conditions or underwater. Great for bathrooms, kitchens, and exterior work.
- Solvent-Free & Odourless – Low VOC and non-toxic once cured. Safe for indoor use around pets and people. Free from isocyanates, halogens, and harmful emissions.
- Paintable, Flexible, and UV Resistant – Stays permanently elastic after curing. Paintable with water-based systems and resistant to weather, vibration, and movement.
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6
UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Suitable for Use on Various Materials*, Weather Resistant and Waterproof Sealant, Translucent, 1 x 294g Cartridge
Unibond
3% Off
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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 294g Cartridge
3% Off
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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7
EVO-STIK Window & Door Frame Sealant White - 290ml - Waterproof - Flexible - Overpaintable - Lasts up to 15 Years
EVO-STIK
11% OffFree Shipping
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EVO-STIK
EVO-STIK Window & Door Frame Sealant White - 290ml - Waterproof - Flexible - Overpaintable - Lasts up to 15 Years
11% OffFree Shipping
Why we love it
- Weatherproof and reliable protection.
- Excellent adhesion to surfaces.
- Mould-resistant and overpaintable.
Main Highlights
- EVO-STIK Window & Door Frame Sealant, Filled acrylic emulsion paste ideal for sealing around door and window frames
- Weatherproof: prevents damage caused by penetration of water and keeps out draughts
- Excellent adhesion to most materials including wood, uPVC and metal, For interior and exterior use
- Lasts up to 15 years, Contains fungicide to combat unsightly mould growth, Overpaintable when dry
- Contents: 1x EVO-STIK Window & Door Frame Sealant, Waterproof, Mould-Resistant, Flexible, Overpaintable, Colour: White, Size: 290ml
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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
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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9
Sika Sikaflex EBT+ Adhesive, Sealant and Filler, Beige, 300 ml
Sika
5% Off
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Sika
Sika Sikaflex EBT+ Adhesive, Sealant and Filler, Beige, 300 ml
5% Off
Why we love it
- Quick curing saves valuable time.
- Excellent grip for tough jobs.
- Flexible seal resists water damage.
Main Highlights
- QUICK CURING/DRYING FORMULA – This 1-part polyurethane formula is moisture curing and develops a skin in 70 minutes. Full cure is expected in 24 hours for every 3mm of sealant depending on weather conditions.
- EXCELLENT GRAB AND NON-SLIP QUALITIES – This all-in-one mix is ideal for most building works and is suitable for gap filling on multiple substrates as it grips hard and fast.
- 25% FLEXIBILITY FACTOR – Dries to a permanently flexible seal that has high water and rain resistance when used inside and out.
- VERSATILE FORMULA – Works to seal and fill gaps in a range of materials and bonds to concrete, brick, mortar, wood, metals, glass, resins and plastics.
- MULTIPLE SHADES AVAILABLE – Available in Black, Grey, Brown, White and Beige shades to best suit your space, as it cannot be overpainted.
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10
OB1 PaintersPal White - Extremely Paintable Hybrid Sealant & Caulk - Glazing & Joints - No Shrinking - Bubble Free - UV Resistant - Interior & Exterior - 290ml
OB1
25% OffFree Shipping
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OB1
OB1 PaintersPal White - Extremely Paintable Hybrid Sealant & Caulk - Glazing & Joints - No Shrinking - Bubble Free - UV Resistant - Interior & Exterior - 290ml
25% OffFree Shipping
Why we love it
- Excellent paintability, bubble-free finish.
- Ideal for glazing applications.
- Perfect for internal and external uses.
Main Highlights
- OVERPAINTABLE - Has excellent paintability with water based and synthetic paints that has no shrinkage and is bubble free leaving a perfect finish
- GLAZING SEALANT - specifically developed as a universal glazing and frame sealant, complying with international glazing standards, for laminated, single, insulation, burglar-proof and self cleaning glass
- JOINT SEALING - For sealing expansion, connection and perimeter joints. Ideal as a universal window and door frame sealant.
- INTERNAL & EXTERNAL USES - Has good resistance to UV, moisture, mould and weather, adhering perfectly without the need of a primer on most, even damp surfaces
- CONTENTS - 1 x OB1 Painterspal Sealant, White, 290ml
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