Salt Retarder

Salt Retarder 20 LTS

Salt Retarder

Protection against efflorescence in Plaster / Render




After the installation of the new Tech-Dry damp course system we recommend to wait a minimum dry out time of 3 – 6 months (dependent on wall thickness).  After this time the old affected hard plasters / renders can be removed from the wall.  They can then be replaced with a render coat containing the Tech-Dry Salt Retarder.   White coat can be applied to match if required.

TECH-DRY SALT RETARDER is a water repellent admixture. It inhibits the transfer of salts into the newly plastered/rendered surface. It is recommended to be used in the render coat after a Tech-Dry Damp Course Installation. Using SALT RETARDER in these renders eliminates the need for separate plasticisers and water-proofing additives.

SALT RETARDER should be used during rendering  to waterproof / salt proof newly constructed walls.  It should also be used in older walls after the installation of a Tech-Dry damp proof course to prevent residual salt and water migration.


  • Reduces salt migration and water absorption by up to 90%
  • Improves workability
  • Dramatically reduces efflorescence
  • Readily dissolves in water
  • Water-Based


1L, 5L and 20L Containers
For quotes and shipping on larger quantities please email our office.




1L of Salt Retarder dissolved in 20L of clean water.   Used with 1:3 cement to sand ratio.

Water Based

Please see blog post on Rising Damp and Salt Attack for recommendations prior to and post treatment.

Please note the use of Tech-Dry Salt Retarder specified plastering mix is suitable for standard residential and commercial properties only.
Please refer to a specialist when dealing with Heritage listed and properties of Heritage significance.
This particular system is not recommended in this instance due to the cement required in the plaster.

Additional Information

Application Method


Product Resources

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