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Stop leaks instantly with a can of LeakSeal

Rust-Oleum LeakSeal is an easy to use, rubberized protective coating designed to fill and seal leaks and cracks in and around the home.


Moisture penetration from cracked, weathered or degraded seals can be costly if not attended to as quickly as possible. Now there is a new product that can be applied to a variety of surfaces to seal leaks and cracks instantly.  Rust-Oleum LeakSeal provides a water-tight, flexible seal that prevents moisture penetration, rust, and corrosion. LeakSeal dries to a semi-smooth, firm finish that will not sag or drip. Find the LeakSeal range on the shelf at your local Builders.

You can use LeakSeal on gutters, downpipes, roofs, skylights, portable AC units, both interior and exterior. The product is flexible in all temperature conditions and can be top coated with enamel or PVA paints to match exterior finishes.

Apply to leaks in gutters before the rainy season and prevent the possibility of damage to built structures. You will find detailed videos that offer comprehensive instructions for the correct application of LeakSeal for ultimate protection.

Over time the seal around skylights and vents can degrade. Regular inspection will alert you to the possibility of a future leak and you can quickly apply LeakSeal to the area around these fittings and have the peace of mind that leaks have been sealed.

With Rust-Oleum LeakSeal you get an easy to apply protective coating that prevent moisture penetration, rust, and corrosion. Plus it is weather resistant, long lasting and has hundreds of uses in residential and commercial applications with a trusted brand name.





You can use LeakSeal to cover damaged mortar to prevent moisture penetration. Shake the can well, hold approximately 30cm away from the surface and apply light, even strokes - spraying from left to right to cover the damaged and surrounding area. Once dry, paint over to match the existing finish.


LeakSeal provides a smooth, even coat on just about any surface. Use to seal gaps around steel window frames. Simply mask off areas to protect from overspray and follow the simple instructions on the can for quick and easy application. Once dry the product can be top-coated in your choice of colour with oil-based enamel or PVA exterior paints.