How to instantly seal a leaking roof

How to instantly seal a leaking roof

Eliminate the cost and time of repairing a leak on a flat or pitched roof with Polar Premium Leak Seal Paint.

A leaking roof can lead to substantial external and internal damage to a property if left untreated. However, replacing the roof can be costly, and the time waiting to get the leak fixed leaves it open to additional weathering damage. To help overcome this issue quickly and effectively, we advise you use Polar Premium Leak Seal Paint - for instant protection, that lasts.  


Getting prepared for the cooler months 

Ensuring your roof is repaired, particularly as we come into Autumn and Winter is a must. Leaking roofs can not only be aesthetically displeasing but can cause significant damage to the structure of rafters, ceiling joists, wall frames and fascia boards. Polar’s hard-wearing, waterproof formula, has been specially developed to stop water intrusion on industrial or commercial properties, and is suitable for use on the following surfaces: 

  • Concrete 
  • Asphalt 
  • Bitumen 
  • Brick 
  • Felt 
  • Fibreglass 
  • Metal 
  • GRP 
  • Asbestos 


How does Polar Waterproof Leak Seal work?

Polar Leak Seal Paint works by forming a waterproof membrane, specially formulated with reinforced fibres that interlace to give tough, durable and instant protection so that once applied, the surface is protected from dampness and water ingress.  


How to apply Leak Seal Paint  

Polar Leak Seal is easy and quick to apply and doesn’t require a primer, making it the perfect DIY solution. To apply, simply use a brush or roller to paint the affected surface area of the roof, drain pipe, or gutter. No primer is required, but please ensure the surface area is clear of moss and debris and remove any surface water, oil, or grease beforehand. 

Available in black, grey, and clear, to enable a discrete repair job, that doesn’t compromise the look of the exterior surface. With long-lasting protection to cracked or leaked surfaces, once completely dried and cured you can be sure that Polar Leak Seal has securely repaired your roof. 


Want to learn more about our repair and protection paint and spray products?

View our full range of repair and protective paint products here. We are the go-to specialist company for all your DIY requirements for both interior and exterior repairs, whether it be for industrial or commercial areas. We offer trade discounts for business customers, please enquire directly for more information on this. If you have questions our team provide free technical help for all our products.


Share your projects with us! 

We would love to hear your thoughts on our leak sealant paint, and how it has successfully stopped any leaks around your home.



How many coats are required to fully seal the roof surface?

One coat of Polar Leak Seal instantly seals a flat or pitched roof. 

Should I apply a primer prior to Polar LeakSeal?

No primer is required, just ensure the affected area is clear of moss and debris, and remove any surface water, oil or grease.

Can I use Polar LeakSeal for interior leaks?

No, Polar LeakSeal is for outdoor use only, for any interior leaks please use Polar Leak Sealer Spray this can be used on interior surfaces to help easily repair cracks and leaks.

How long does Polar take to dry?

Apply immediately for instant waterproof protection, touch dry within 3-4 hours.

How much do I need?

In terms of coverage, we advise that 500ml covers up to 0.5㎡.