Rustoleum LeakSeal Flexible Rubber Sealant



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Appearance: Semi smooth
Colour: Black, white, transparent and aluminium

Product Description

Rustoleum LeakSeal Flexible Rubber Sealant is an easy to use, rubberized protective utility coating designed to fill and seal leaks and cracks.

Best uses

Designed to fill and seal leaks and cracks on metal, aluminium, galvanized metal, PVC, concrete, masonry, asphalt/bituminous roofing materials, vinyl siding, fiberglass, and more.

Rustoleum LeakSeal Flexible Rubber Sealant Features

  • Seals leaks and cracks
  • Watertight semi smooth finish
  • Can be top-coated with latex or oil-based paints
  • Easy to use

Drying times

20°C/50% r.h.
To touch: 20 – 30 minutes
To handle: 45 – 60 minutes
To recoat: Apply second layer LeakSeal after 15 – 30 minutes
Top-coated with water-based or oil-based paints after 24 hours.
Full hardness: 24 hours


Theoretical: 0,74 m2 per aerosol at 65 μm dry film thickness
Practical: Practical coverage depends on many factors such as porosity and
roughness of the substrate, size of the leakage and material losses during

For additional information, please refer to the product data sheet or contact us today.

Additional information


500ml Spray

Available Colours

Aluminium, Black, Clear, White