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 DAMIT™ Dam Sealer is an advanced, non-toxic, polymer powder which can be used to seal leaking earth dams without removing the water.

We offer farmers, golf courses, game lodges, fish farmers, dam and pond owners’ unique innovations to seal leaks and cracks in earth dams, cement dams or various substrates.

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 The polymer is applied to a leaking dam by scattering the powder across the surface of the water. DAMIT™ Dam Sealer is designed with a positive charge which draws it downward through the water towards the bottom of the dam. The water pressure (hydrostatic pressure), which causes the dam to leak, forces the polymer down into cracks and crevices as it sinks to the bottom of the dam. Once activated with water, the polymer will expand in size and bind to other polymer particles to form larger groups of particles, which effectively slows and stops the leak.

The polymer will continue to expand over a number of hours and forms a flexible plug that withstands water pressure. The positive charge of the particles will also attract any silt and suspended matter in the water downward to the bottom, which acts to embed the polymer within the soil structure and minimise any disturbance or movement of the polymer that may be caused by future water inflows. DAMIT™ Dam Sealer is insoluble and will form a long-term plug-in cracks and porous soils. 

The polymer stays active when wet and can withstand continuous wet/dry cycles to accommodate rising and falling water levels due to seasonal water level variations in the dam or pond. 

The polymer is totally safe and approved for use with potable water and will not harm humans, fish, aquatic plants or animals. DAMIT™ Dam Sealer will eventually break down to form a harmless mix of water and carbon dioxide over time. 

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Branch Contact Info

Physical Address
Unit 3 Workspectrum Park, 16 Enterprise Way
Rivergate Industrial Park
Cape Farms
Cape Town
Western Cape
Postal Address
Business Hours
Sunday: Closed
Monday: 8:00-17:00
Tuesday: 8:00-17:00
Wednesday: 8:00-17:00
Thursday: 8:00-17:00
Friday: 8:00-17:00
Saturday: Closed

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