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Monday, 1 June 2020

Applications of Liquid Waterproofing Membrane




In many countries such as US, UK, this waterproofing membrane is applied on exterior walls also. It is available in different colors so that it matches the color of wall. Approx. 5 gallons of waterproofing membrane can be used for 325 sq. meter of concrete surface. You need to put 1 coat, let it dry and then put the second coat.

It can also be applied on concrete bridges (It can have an application rate of 800 sq.meter per hour). Concrete expands and shrinks causing cracks under high or low temperature causing water seepage, the liquid waterproofing membrane has UV absorption properties and thus it saves damage to concrete in such conditions.

The liquid waterproofing membrane can also be applied on metal deck steel bridges which have space age joint system. It prevents the seepage from the joints. It increases the longevity of the bridge and this comes into picture when the bridge is rebuilt after 10-15 years.



The liquid waterproofing membrane not only prevents the cracks but also prevents the corrosion of inner materials, the steel bars, and the joints. It seals the cracks up to 1.3 mm width and can withstand expansion up to 0.4 mm and what more the bridge is ready to use for traffic in less than 6 hours.
Surface preparation for Applying Liquid Waterproofing Membrane
The surface to be waterproofed should be clear from dirt, dry and clean. There should not be any loose patches on the surface so the contractor needs to ensure proper surface preparation prior to application.

Curing of Liquid Waterproofing Membrane

It is critical that the applied membrane should be watered soon after the membrane is touch dry. As per standard specs it has to be cured by water following couple of days.
Low Maintenance

It gives a low maintenance service long life. It’s a lifetime smart alternative then other conventional methods. If the bridge last for 200 years so as the waterproofing work too.

It also saves the cost of filler and sealers and other materials which will be used in future to repair cracks and still remains a temporary solution only.

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