Home » Videos » A liquid blanket; by WaterGuard

A liquid blanket; by WaterGuard

WaterGuard is a unique liquid which spreads over the surface of water to form a very thin film and reduce evaporation.

How does it work?

WaterGuard is produced from polymers which repel each other very strongly when they come into contact with the water. This results in a strong spreading action across the surface, forming a liquid ‘blanket’ to reduce evaporation.

Why is it important to reduce evaporation?

Water losses from evaporation are immense. A single square meter of water surface can easily lose up to 8 litres to evaporation every day in summer, and a one hectare dam can lose up to 80 000 litres; Water that is essential for animals and growing crops.

What savings can you expect with WaterGuard?

Trials in the US have a achieved evaporation savings of 50% and above.

Is WaterGuard safe?

The components of WaterGuard are safe chemicals, and many of them are used in food and pharmaceutical applications.

Rain, wave and wind action?

Once the film is in place it is very resistant to disturbances. It will move around slowly over the surface, but will not build up at one end of the water body. In the event of rain, the blanket will not be affected as it will allow the rain to go through without disturbing the film.

Application methods

WaterGuard can simply be poured on to the water directly from the drum, ad it will spread rapidly across the surface for larger applications it can also be applied by air.

Application rate

1ml of WaterGuard is applied per 1 square meter. Therefore, before application measure the pool/surface area and apply accordingly.

To enquire about Cape Business News' digital marketing options please contact

Related articles

Future water security depends on sources other than rain

The 10th Edition of Cape Town’s Water Outlook is now available on the City’s website for download. Published annually, its objective is to make information...

How do we fix SA’s critical water challenges?

By Chetan Mistry, Strategy and Marketing Manager at Xylem Africa   IT's not difficult to find examples of water problems across South Africa. The most current...


Two SAB plants get R5.8 billion upgrades

The R5.8 billion investment commitment made by South African Breweries (SAB) has been utilised to increase capacity at two of its plants. The company said...


Cape Business News
Follow us on Social Media