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10 bestExterior Caulksof October 2025

112M consumers helped this year.

11% off

1

Everbuild Stixall – Extreme Power Sealant And Adhesive – Waterproof – Grey – 290ml
Everbuild Stixall – Extreme Power Sealant And Adhesive – Waterproof – Grey – 290ml

Everbuild

9.8

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18% off

2

Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml
Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml

Sika

9.6

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38% off

3

Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml
Gorilla 1144110 All Conditions Sealant Silicone Clear 295ml

Gorilla

9.3

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4

Haltons Expanding Foam Filler | Ready To Use | No Tools Required | Waterproof Caulk Spray Sealant for Walls, Cracks, Gaps, Holes in Brick, Wood, Metal | Strong & Reliable Repair Indoor & Outdoor (2pk)
Haltons Expanding Foam Filler | Ready To Use | No Tools Required | Waterproof Caulk Spray Sealant for Walls, Cracks, Gaps, Holes in Brick, Wood, Metal | Strong & Reliable Repair Indoor & Outdoor (2pk)

Haltons

9.0

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48% off

5

Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – White – 280ml
Everbuild General Purpose Silicone Sealant – Waterproof – Suitable for Interior and Exterior Use – White – 280ml

Everbuild

8.8

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Related productsUp to 63% off

EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, for Interior and Exterior Use, Colour: Clear

EVO-STIK Multipurpose Silicone Sealant, Waterproof + Mould Resistant, for Interior and Exterior Use, Colour: Clear

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

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

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

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

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Everbuild Caulk Once Premium Quality Acrylic Caulk – Highly Flexible – Fast Drying – White – 380 ml,Packaging may vary

Everbuild Caulk Once Premium Quality Acrylic Caulk – Highly Flexible – Fast Drying – White – 380 ml,Packaging may vary

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19% off

6

UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Ideal for Window and Door Frames, Weather Resistant and Waterproof Sealant, White, 1 x 392g Cartridge
UniBond Outdoor Extreme Repair Sealant, Polymer Based Outdoor Sealant Ideal for Window and Door Frames, Weather Resistant and Waterproof Sealant, White, 1 x 392g Cartridge

Unibond

8.5

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16% off

7

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 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

8.2

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8

XFasten Silicone Sealant Waterproof Black Cartridge, 10.1 oz (Single Pack) Black Caulking Silicone Adhesive Sealant Cartridge for RV, General Use, Window, Door, Glass, Automotive Leak Sealing
XFasten Silicone Sealant Waterproof Black Cartridge, 10.1 oz (Single Pack) Black Caulking Silicone Adhesive Sealant Cartridge for RV, General Use, Window, Door, Glass, Automotive Leak Sealing

XFasten

7.9

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9

Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – White – 290ml
Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – White – 290ml

Everbuild

7.6

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7% off

10

Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – Grey – 290ml
Everbuild External Frame Sealant – Interior And Exterior Use – Permanently Flexible – Mould-Resistant – Grey – 290ml

Everbuild

7.3

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