Thank you to all of our resellers and especially to all the tradespeople doing the hard work out on site. Thank you for supporting us once again in 2025. We hope you enjoy a well-deserved break. We'll be taking a few weeks out while we can, and we'll be back...
Introducing EFFLOCK and EFFSEAL
Introducing EFFLOCK and EFFSEAL
Efflock is an advanced concrete additive to repel damp and lock leaching/ efflorescence in many kinds of applications. Since 2012 ,it has grown to become a standard specification for screeds, tile adhesives, tile grout, brick mortar, glass blocks mortar, roof tiling, stone masonry, render and pre-cast concrete products.
Efflock provides permanent hydrophobic impregnation of the entire concrete mass that is not compromised by cracking from building movement or traffic wear. Water is controlled to prevent the migration of calcium hydroxide and other salts that cause leaching, salt attack and efflorescence.
Also check out our product EFFSEAL.
Effseal is a 10 times concentrated water repellent sealer which is a cost-effective problem solver for many types of masonry. The hydrophobic effect of both these products provides an excellent barrier against all kinds of water-related problems.
Efflock Additive – Superior Water Repellent Protection For Masonry & Concrete
Efflock is a high-performance water repellent additive that protects concrete, brick and masonry from moisture penetration and efflorescence. Used by professionals across construction, tiling and waterproofing, Efflock delivers long-lasting hydrophobic protection by working within the material, and not just on the surface.
If you’re searching for the best brick water repellent or a reliable waterproof sealant for brick walls, Efflock offers a proven, science-backed solution built directly into cement-based mixes.
What Is Efflock Additive?
Efflock is a water repellent additive engineered to create a hydrophobic molecular structure within the pores of concrete, brick and masonry. Unlike surface treatments, it works throughout the entire mass of the material, helping to dramatically reduce water absorption while allowing moisture vapor to escape naturally.
Through deep impregnation, Efflock prevents capillary water movement that can lead to damp issues and efflorescence — the unsightly white salt deposits that form when soluble salts move to the surface of masonry and concrete.
Water Repellent Sealer For Brick Walls - Built Into The Material
Traditional waterproof sealers are surface coatings that can wear away over time. Efflock, however, is an intergral water repellent additive that becomes part of the structure it protects. This means brick walls and other porous masonry elements gain resistance to water without trapping moisture beneath the surface, reducing the risk of moisture-related damage and improving long-term durability.
Why is Efflock the Best Brick Water Repellent and Waterproofing Choice?
Permanent Hydrophobic Protection
Efflock’s advanced formula embeds into the concrete and masonry matrix to repel water at the molecular level, offering long-term protection against moisture ingress. It also reduces the risk of rising damp and efflorescence.
Durable, Eco-Friendly and VOC-Free
Efflock is water-based and VOC-free, offering environmental benefits alongside performance. Its concentrated formulation dilutes extensively, meaning less material waste and reduced packaging impact.
Compatible with Cementitious Systems
Because Efflock is added directly to the gauging water for mixes, it can be used in:
- Concrete screeds and toppings
- Tile beds, adhesives and grouts
- Brick mortar and stone masonry
- Renders and precast elements
It does not adversely affect workability or adhesion of other materials, making it one of the most versatile water repellent additives across construction applications.
Does Efflock Work? Science-Backed Performance
You may be wondering: does Efflock work as claimed? The answer is a resounding yes! Efflock not only repels water but also helps lock out soluble salts that cause efflorescence and damp staining. Its hydrophobic molecular structure significantly reduces water absorption while still allowing vapour transmission, helping to prevent common issues including dampness, salt attack and moss growth on masonry surfaces.
Efflock’s performance has made it a standard specification for water repellent additives in Australian building practice since 2012. It is specified by architects, and used by professionals in tiling, waterproofing and masonry construction.
Key Benefits Of Efflock Additive
- Deep-penetrating water repellency for concrete and masonry
- Reduces moisture absorption and efflorescence
- Improves durability of brickwork and cement-based systems
- Invisible protection with no change to appearance
- VOC-free, environmentally-responsible formulation
- Simple integration into existing mix designs
Have Questions About Water Repellent Additives? Contact Us
If you’re working on residential builds, commercial projects or specialised masonry applications, Efflock provides reliable, long-lasting protection against water and efflorescence. If you’re looking for a proven water repellent additive that performs where it matters - inside the structure - Efflock is the solution.
Contact Efflock today on +61 414 730 736 or emailing at info@efflock.com.au to learn more about specifications, applications or where to purchase and protect your brick and concrete projects with confidence.
