Reduce Evaporation

A liquid ‘blanket’ to reduce evaporation!

WaterGuard GOLD is produced from polymers which are highly impermeable to gases including water vapour. In the WaterGuard GOLD formulation, these polymers repel each other strongly when they come in contact with the water, resulting in a strong spreading action across the surface.

Water losses from evaporation can be huge. For example, a dam with a surface area of 1,000 square metres, in a harsh climate, can lose up to 20,000 litres of water each day. The components of WaterGuardGOLD are safe chemicals, and are used in many food and pharmaceutical applications.

Half way across

Application Rate

In most cases, an application rate of 1.5 litres per 1,000 sq metres of water surface area (15 litres per hectare) will be sufficient to reduce evaporation by at least 50%. In exceptionally harsh environments, a higher rate up to 3.0 litres per 1,000 sq metres (30 litres per hectare) will be beneficial. Re-apply every 3 weeks in hot months.

We recommend that WaterGuard GOLD is applied on the upwind side of the dam to assist with spreading. It will still cover the surface if applied against the wind, but at a slower rate.

Few minutes later

Trials with WaterGuardGOLD have achieved evaporation savings of up to 60%.

WaterGuardGOLD  can be applied from several points along the edge of the water storage. As with smaller water bodies, it should be applied from locations along the edge such that the prevailing wind will assist it to spread.

We Can’t Make It Rain, but We Can Help Ease the Pain!

Ready Reckoner

The table sets out the indicative amount of WaterGuard GOLD required for various areas of water surface.

Surface Area (Sq Metres)
Application Rate Every 3 Weeks (Litres)*
Total Required Over 3 Months (Litres)*
500
0.75
3.0
1,000
1.5
6.0
5,000
7.5
30.0
10,000
15
60
20,000
30
120
50,000
75
300
100,000
150
600
250,000
375
1500

We are a team of experienced professionals who are dedicated towards providing innovative solutions to the environmental problems faced by the world today.

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