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A high performance, water based, VOC free, liquid additive designed for the bulk impregnation of cement based building materials to prevent efflorescence and damp.

The Efflock Technology

The Efflock additive creates a hydrophobic molecular structure within the pores of cured concrete without filling the pores of the material. The product dramatically reduces water absorption whilst remaining permeable to allow the controlled release of any moisture. Efflock provides bulk impregnation to protect concrete throughout the entire mass so that performance is not affected by traffic wear or movement cracks

Where to use Efflock?

  • Bathroom tiling
  • Balconies, patios and stairs tiling
  • Stone and concrete paving
  • Stonemasonry
  • Brickwork
  • Pool surrounds
  • Render
  • Off-form concrete
  • Construction in saline soils
  • Protection against freeze/thaw damage
  • Concrete pavers and blocks manufacturing
  • Post-tension concrete reinforcement pockets
  • Impregnating sealer for concrete, brick and sandstone

Why use Efflock?

  • An excellent additional barrier to a waterproofing system to promote drier, healthier wet areas.
  • Complete efflorescence protection for a tiling system – compatible with tile beds, tile adhesive and grout.
  • Negates the practice of installing a secondary membrane, saving around 80% cost and faster construction.
  • Protects against picture framing and crypto fluorescence in stone, brick and concrete.
  • Water-based, environmentally friendly, VOC free
  • Concentrated formula dilutes 100 times for convenience, minimal plastic waste and minimal transport impacts.
  • Prevents absorption of damp, salt attack and frost attack.
  • Invisible bulk impregnation of the entire concrete mass.
  • No detrimental effect towards the adhesion of paint, adhesives and other finishes.
  • Good workability.
  • Improves curing.
  • Permeable to vapour and UV stable.

Product specification sheet

product sheet pdfEfflock product specification sheet opens in a new window



Efflock logo
Efflock is an Australian owned building product that brings a simple and very cost effective solution to some of the most common defects in the building industry.
  • Australasian Corrosion Association
  • Association for Materials Protection and Performance
  • Illawarra Innovative Industry Network
  • NACE International
  • The Society of Protective Coatings