Liquid Waterproofing Admixture


Cemix Liquid Waterproofing Admixture improves the waterproofing properties of Cement Mixes.

Typical Applications & Uses:

  • Enhance waterproofing characteristics of plaster, screeds, toppings and other concrete substrates


  • Improves the waterproofing properties of Portland Cement
  • Easy to use
  • Durable – lasts as long as the life of the structure
  • Increases the workability of the mix
  • Does not affect normal cement properties

1L, 2.5L, 5L, 20L & 210L


Thoroughly agitate contents before use. Add Cemix® Liquid Waterproofing Admixture to the usual mixing water. Mix cement, sand and/or aggregates in the usual quantities.


Add Cemix® Liquid Waterproofing Admixture to the mixing water for all work.


Normal concrete practice regarding mixing, placing and curing must be followed at all times.


It is recommended that all work be done using a two coat method as follows:

First Coat: A 10mm render of sand and cement with Cemix® Liquid Waterproofing Admixture in the mixing water.

Second Coat: Build up to the required finished thickness – but not less than 20mm total thickness. The second coat must be applied not less than 24 hours after the first coat.

Remedial work:

For all repair work, it is recommended that the existing surface be hacked to form a mechanical key, followed by the use of a bonding agent such as Cemix® Multibond or Cemix® Acrylbond.


Use at the rate of 1litre per 40kg bag of cement for all applications. Cemix® Liquid Waterproofing Admixture is supplied ready for use.

Technical Data:

Packaging – 1L, 2.5L, 5L, 20L pails and 210L drums.

The data shown above reflects typical results based on laboratory testing under controlled conditions. Reasonable variations may occur on site.


Ensure adequate ventilation. Do not use Cemix® Liquid Waterproofing Admixture in concrete or plaster that is in contact with drinking water.


Clean all tools with water & brush immediately after use.

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