Top 9 Exterior Sealant Waterproof UK – Sealers

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1. Everbuild

Everbuild Everflex 450 Premium+ Builders Silicone Sealant, Transparent, 300 ml

Everbuild - Cures quickly to provide a permanently flexible, high strength waterproof seal. Available in brown, black, white, Translucent, Buff, Oak and Grey.

Brand: Everbuild. Ideal for perimeter pointing internally and externally around PVCu/wood and all other window frames, sealing and as an adhesive onto PVCu, plastic trims and components. Formulated as a high viscosity grade to give Ideal tooling properties. Suitable expansion joint sealant or weather sealing and ideal for pre-formed panels, general glazing sealing, including repair work over existing sealant, glass to glass and glass to aluminium sealing. Size: 300 ml. Silicone 450 Builders Silicone.
ManufacturerSika Everbuild
Height4.4 cm (1.73 Inches)
Length23.1 cm (9.09 Inches)
Weight0.34 kg (0.75 Pounds)
Width6.5 cm (2.56 Inches)
Part NumberEVB450CL

2. Unibond

Cartridge, White Outdoor Sealant, UniBond 2078170 Outdoor Window and Door Frame Sealant, Durable Weatherproof Door and Window Sealant

Unibond - Multi materials: this durable adhesive sealant can be used on various materials such as wood, uPVC, polycarbonate, and metal: suitable for most window and door frames.

Flexible and waterproof: as well as providing strong and flexible sealing, this window frame sealant is also waterproof, so it can stand up to harsh weather conditions. Permanently flexible: unibond waterproof sealant provides a durable flexible perimeter seal for exterior window and door frames, protecting you from the elements. 25-year guarantee: as long as you follow the instructions for use, this exterior sealant is covered by a quarter-century guarantee: we're confident in its durability. Package contents: unibond outdoor window and Door Frame Sealant, white, flexible and long-lasting waterproof sealant, weather-resistant silicone sealant, Cartridge.
ManufacturerHenkel Ltd
Height23 cm (9.06 Inches)
Length5 cm (1.97 Inches)
Weight0.46 kg (1.01 Pounds)
Width5 cm (1.97 Inches)
Part Number2078170
Warranty25-year warranty.

3. Unibond

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

Unibond - All weather sealant – the durable uniBond sealant is waterproof, UV- and weather-resistant, making it effective for outdoor use on guttering, roofs and tiles. Package contents – unibond roof & gutter sealant, coverage of approx.

Specially formulated – the ready-to-use flexible sealant is specially designed to fill connections and joints in guttering, downpipes and other roofing applications. 11m, resistant to water, uv and weather, black, ageing, flexible & durable, rubber sealant for roofs & gutters, 1x504g Cartridge. Ensures durability – the practical black sealant is highly flexible and durable, ensuring long-lasting and effective results for most common roofing materials. *. Wide coverage – the sealant cartridge ensures a wide coverage of approximately 11m using a 6mm bead, making it ideal for larger or more challenging jobs.
ManufacturerHenkel Ltd
Height23 cm (9.06 Inches)
Length5 cm (1.97 Inches)
Width5 cm (1.97 Inches)
Part Number2079110
WarrantyNo guarantee.

4. Unibond

1 x 398 g Cartridge, UniBond Outdoor Fill&Repair Sealant, Durable Weatherproof Sealant for Exteriors, White Polymer Outdoor Sealant, Joint Filler

Unibond - Sealing made easy – sealing the weather out of your home is easy. Package contents – unibond outdoor fillandrepair Sealant, weather-resistant window frame sealant, white, works on wet surfaces and in cold conditions, 1 x 398 g Cartridge.

Keep harsh weather outside by applying sealant to joints, facades, cracks and frames, so you can enjoy and relax inside. High-performance – get outside and seal those gaps even in the harshest conditions. Seal your home to the elements and don´t let the weather get in. The unique technology of UniBond Outdoor FillandRepair allows it to be applied to wet surfaces and in cold temperatures.

Easy to apply – the unique technology makes this exterior sealant easy to apply and smooth, easy on the nose, and easy to enjoy for years to come. All weather – this high-quality adhesive formula has the strength of a glue and is designed to resist rain, cold, heat and sun for years.
Height23 cm (9.06 Inches)
Length5 cm (1.97 Inches)
Width5 cm (1.97 Inches)
Part Number2652146

5. Everbuild

290 ml, White, Everbuild EXTWE-EB External Frame Acrylic Sealant

Everbuild - Apply using a caulk, sealant / adhesive cartridge application gun, we recommend the Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun. Suitable for internal and external use around window and door frames Internal only on PVCu. Once cured the sealant can be over painted if required with most paints. Also suitable to be used to seal cracks and gaps in brickwork, stone and concrete. Available in white, stone, grey and brown. Provides a permanently flexible, long lasting, mould resistant seal.
ManufacturerSika Everbuild
Height1.2 cm (0.47 Inches)
Length23 cm (9.06 Inches)
Weight0.29 kg (0.64 Pounds)
Width8.2 cm (3.23 Inches)
Part NumberEXTWH

6. Everbuild

Gap Filler and Adhesive, 295 ml, Clear, Everbuild WEACL-EB Everflex Weather Mate

Everbuild - Flexibility: remains permanently flexible for ideal use in areas where shrinkage and expansion is possible such as around windows and doors.

Formulation: multiple use adhesive and gap filler based on an advanced isocrylic formula that provides the high weather proofing protection for adhesion to all surfaces. Temperature resistance: Suitable for temperatures as low as -25 and up to 95 degrees Celsius. Usage: suitable for all roofline applications, filling cracks in stone tiles and slates, asphalt, jointing for all types of guttering, lead and galvanized steel, securing problematic surfaces such as bitumen, and much more. Multiple colours: Available in white, clear and black.
ManufacturerSika Everbuild
Height23 cm (9.06 Inches)
Length5 cm (1.97 Inches)
Weight0.2 kg (0.43 Pounds)
Width5 cm (1.97 Inches)

7. Everbuild

Everbuild STIXBK-EBD Stixall Extreme Power, Building Adhesive and Sealant Hybrid, Black, 290 ml

Everbuild - Exterior and interior uses: ideal for bonding mirrors to most common surfaces, automotive gap filing and sealing, jointing cladding panels and much more. Paintable: once fully cured this product can be overpainted if required.

Multifunctional: high instant grab adhesion to most internal and external surfaces including glass, Perspex, enamel, concrete, metals, plasterboard, wood, plastic, polyester, painted surfaces and much more. Quick curing time: rapid two in one, easy to use, high grab adhesive and sealant that is touch dry within 30 minute.

Application: apply using a caulk, sealant / adhesive cartridge application gun, we recommend the Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun. Instant high grab adhesive: using hybrid polymer technology Stixall takes the features of silicone and polyurethane to form the incredible high strength, high grab, primerless adhesive.
ManufacturerSika Everbuild
Height23 cm (9.06 Inches)
Length4.9 cm (1.93 Inches)
Weight0.24 kg (0.53 Pounds)
Width4.9 cm (1.93 Inches)

8. Gorilla

Clear 100 Percent Silicone Sealant Caulk, 2.8 Ounce Squeeze Tube, Gorilla 8090001, 1 Pack

Gorilla - Incredibly versatile 100% silicone sealant that dries translucent clear. Indoor/outdoor; 100% Waterproof. Best for sealing gaps or cracks between two surfaces; Works on window, auto, door, gutters, bath, kitchen, marine and more. Won't yellow, shrink or crack. Mold and Mildew resistant.
ManufacturerGorilla Glue
Height19.38 cm (7.63 Inches)
Length3.58 cm (1.41 Inches)
Weight0.1 kg (0.23 Pounds)
Width9.53 cm (3.75 Inches)
Part Number8090001

9. Manufactured for Good Ideas

Apply to wet or damp surfaces. Bitumen, tar and asbestos free., Good Ideas Best Selling Waterproof Sealant Paste- Seal Fix seals instantly

Manufactured for Good Ideas - Bitumen, tar and asbestos free. Strong/Thick Compound. Seal fix seals instantly, apply to wet or damp surfaces. Tin size: 375ml. For use indoors and outdoors - UV-resistant.
BrandManufactured for Good Ideas
ManufacturerManufactured for Good Ideas
Weight0.57 kg (1.25 Pounds)
Part Number782