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Polar Specialist Coatings

LeakFix Waterproofing Sealant

4.61 ( 41  Reviews )
UV-Resistant, Non-Yellowing Finish
One-Coat Waterproof Protection
Advanced Clear Seal Formula

Colour

Clear
Size
Regular price
£16.99
Sale price
£16.99
Free Technical Support
Quality Assurance
Polar LeakFix Waterproofing Sealant clear tin with water based formula, multi surface, interior and exterior, UV and weather resistant icons Seal it like rubber: waterproofs instantly, flexible liquid rubber membrane, one coat only, goes on damp with no primer needed How to use LeakFix Waterproofing Sealant: clear, coat, seal. Instant waterproof, touch dry in 3 to 4 hours, full cure in 6 to 7 days The difference is clear: a leaking flat roof without Polar next to a sealed roof with Polar LeakFix One tin, every roof: works on felt, GRP fibreglass, metal gutters and flashing, and masonry How much do you need: coverage guide for gutters, skylights, sheds, roof valleys and porch roofs Polar LeakFix Waterproofing Sealant clear 5 litre tin

Product Details

Key Features

Waterproofs in One Coat: Our waterproof sealant creates an invisible, durable barrier designed to protect suitable surfaces against water ingress. One coat provides long-lasting waterproofing without changing the natural appearance of the surface, making Polar Clear Waterproofing Sealant ideal for everyday interior and exterior maintenance.

Protects a Wide Range of Surfaces: Our clear waterproof sealant is suitable for masonry, brick, stone, concrete, tile, grout and wood, providing transparent protection against moisture. Use around the home, garden and other suitable exterior areas where a discreet waterproof barrier is needed without covering the original surface.

Easy to Apply with a Brush or Roller: Ensure the surface is clean, dry and free from dirt, grease and loose material before application. Our clear silicone sealant waterproof formula can be applied directly by brush or roller, making it straightforward for DIY users to create a consistent protective coating without complicated preparation.

1m² Coverage per Litre: Our waterproof coating sealant covers up to 1m² per litre depending on surface porosity and application method. Touch dry in around 4 hours and fully cured within 12 hours, giving you reliable waterproof protection with minimal downtime for suitable interior and exterior projects.

Protecting Homes Since 1890: At Polar we are proud of our British heritage, with over 130 years of paint manufacturing experience. Our specialist paints and coatings are designed to help you renovate, revive and protect your home with confidence. Combining trusted quality with a customer-first approach, we're here to help you get the job done right. Please note that packaging may vary as we update our branding.

Coverage Calculator

How Much Do I Need?

Measure your area precisely, drop the numbers into this smart calculator and it will tell you straight away how many litres you’ll need to complete your project.

You will need

litres

Use For The Following Surface Types

Brick
Concrete
Grout
Stone
Tiles
Wood

Technical Specifications

Interior / Exterior Interior & Exterior Use
Number of Coats 1-2
Coverage 5 Litres will cover up to 5m2
Dry Time Touch dry at 4-6 hours
Colours Invisible
Application Brush or Roller
Size 500ml, 1Litre,
2.5Litres & 5Litres

Application

Application

Stir thoroughly before use. Do not apply if rain or water contact is imminent. Brush or roll an even coat of sealer onto the surface. Do not over-apply.