Gives long lasting protection to cracked and leaking gutters, pipes and drainpipes. Polar Leakseal Sealant provides instant waterproofing for leaks and cracks. Formulated with reinforced fibres to give a tough and durable waterproof membrane coating - that keeps water and damp out. Can be applied directly to the affected area without any prior priming. Cartridge gun gives outstanding coverage and accuracy when applying directly to the affected area. Perfect for emergency repair work on surfaces such as felt shed roofs, gutters, drainpipes, concrete, brick, GRP, fibreglass roofs, felt roofs and metal roofing surfaces. Our Leakseal Sealant is available in Grey or Black protective finishes. 310ml sealant with cartridge gun.