3001 Hydrophobic Agent for the Mass Hydrophobic Treatment of Cement-Based Materials.
Mass hydrophobic treatment of cement-based materials is a technique that involves incorporating a hydrophobic agent / additive directly into the mixture during the batching process. This ensures that the material is water-repellent throughout its entire structure, so that even if the surface is damaged, the newly exposed interior remains hydrophobic.
Unlike a traditional surface coating or sealer, that is exposed to the elements and can wear off over time, 3001 is mixed directly into the screed, render, or concrete etc. etc.. It becomes a permanent part of the substrate’s mass material. Once mixed, the agent reacts chemically with the calcium silicate hydrate in the cement. This process lines the internal pores with a water-repellent layer.
Crucially, 3001 does not block the pores. This allows the material to remain vapour-permeable (it can “breathe”), but it fundamentally changes the surface energy of the capillary pores.
3001 hydrophobic agent can act as vital layer of secondary waterproofing. While primary waterproofing (like membranes) handles hydrostatic pressure, an integral hydrophobic agent provides a “fail-safe” within the substrate itself.1
Here is a breakdown of how it functions as a secondary line of defense:
1. Internal Capillary Blocking
Standard concrete is naturally porous, acting like a hard sponge that “wicks” water via capillary action. A hydrophobic agent like 3001 lines these microscopic pores with a water-repellent lining. (See image below)
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The Result: Even if the exterior surface is scratched or the primary membrane is punctured, the concrete itself refuses to “pull” water into its core.
2. Applications
Using a hydrophobic agent as a secondary measure is particularly effective in these scenarios:
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Brick Mortar: Adding it to mortar creates a “Damp Proof Course” (DPC) in every joint. If the external render cracks, the mortar joints prevent rising or penetrating damp from traveling through the wall.
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Precast & Pavers & Tile Screed: It prevents efflorescence (that white, salty staining) by ensuring water cannot transport salts to the surface.
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Ground-Level Slabs: It acts as a backup to the plastic vapor barrier, preventing moisture from rising into floor finishes if the plastic is torn during the pour.
3. Comparison: Primary vs. Secondary
| Feature | Primary (Membranes/Sheets) | Secondary (3001 Hydrophobic Agent) |
| Location | Applied to the exterior surface. | Integrated into the concrete/mortar mix. |
| Durability | Can be torn, weathered, or punctured. | Becomes a permanent part of the structure. |
| Main Goal | Stop bulk water entry. | Stop capillary suction and internal migration. |
| Maintenance | May require re-application or repair. | Zero maintenance for the life of the concrete. |
Looking for an alternative to Efflock – here it is: Compare Nanovations 3001 the high-performance, hydrophobic agent alternative for the use as effloresence additive.
Indroduced 2006, by Nanovations Pty Ltd, 3001 has been a staple in the Australian construction industry for nearly two decade.
Save on large-scale projects. Selling direct in 1000 Litre IBC !
Key benefits and advantages
• Water based, environmentally friendly
• Cost effective, only 1.20 L – 1.5 L per cubic metre mass
• Significant reduced water absorption
• Stops rising damp, 10 mm brick mortar can stop it
• Salt resistant
• Excellent moisture regulation
• Stops efflorescence
• Significant reduced algae and moss
• Permeable to vapour
• Create freeze resistant cement-based products
nanovation Pty Ltd
