$102.30$1,406.90 (AUD) inc GST

Efflock is a high performance additive for cement based building materials to repel damp and lock efflorescence.

What causes efflorescence?


Efflorescence is caused by water entering masonry. Water travels through the pores and dissolves soluble salts. In cement paste within concrete and mortar, the most problematic salt is known as ‘free lime’ (calcium hydroxide). Calcium hydroxide deposits then absorb carbon (carbonation), and become extremely stubborn to remove.

Efflorescence can also occur from atmospheric deposits or inherent salts in clay and aggregate. Efflorescence from inherent salts is often observed on face brickwork.

How does Efflock prevent efflorescence?

The product creates a water repellent molecular structure within the pores of concrete. Should any small amount of moisture be absorbed, it allows the controlled release of moisture while preventing salts from migrating to the evaporation point.

We want to use Efflock in our tiling job. How far does 1 litre go? 

Using it saves around 80% cost compared to the application of secondary membranes, and protects the tile adhesive and grout.

The product is designed to dilute 100 times to use as gauging water in the tile bed*, adhesive and grout.

1 litre bottle    =   approx. 16m2, including 40mm tile bed, adhesive and grout

5 litre bottle    =   approx. 80m2, including 40mm tile bed, adhesive and grout

20 litre drum   =   approx. 320m2, including 40mm tile bed, adhesive and grout

How long does Efflock take to cure?

The product cures with the hydration of the cement. Inclement weather should be avoided for 24 hours.

Does Efflock affect the adhesion of other materials?

Applying it does not change the appearance of any materials, and will not cause detrimental effect to the bond of subsequent adhesives or other coatings.

Quantity discounts available
Brand Efflock
Product Type Additives
Applications Multi-purpose
SIZE/S1L, 5L & 20L
COVERAGE1 litre of Efflock is sufficient for approximately 16m2 of tiling, comprising 40mm thick tile screed, tile adhesive and tile grout based on a 300 x 300 x 10mm floor tile.