TDS-NJ-226 Hydrophobic Agent
NJ-226 hydrophobic agent series is an inorganic salt-modified organosilane powder, an additive used to improve the water resistance and impermeability of cement-based materials, and has the following characteristics:
It can prevent liquid water from penetrating into the cured cement-based material through the surface or capillary action, and can significantly reduce the water absorption rate of the cement-based material, protecting the material surface from water penetration.
The product’s impermeability is related to its dosage; within its recommended dosage range, it has almost no adverse effect on the material’s compressive strength.
This product is suitable for alkaline environments.
Scope of application
- Waterproof mortar• joint sealant• precast gypsum board
- plastering gypsum• decorative mortar• Water-resistant putty
- tile adhesive• waterproof cement-based mortar
Performance index
Performance Indicators | Product Data |
Apparent | White powder |
Density(g/ L ) | 300 ~ 450 |
pH value (1% aqueous solution) | 7.0 ~ 9.0 |
Fineness (residue on a 200-mesh sieve ), % | ≤3.0 |
Water absorption after 2 h immersion , % | 1.29 |
Water absorption after 24 h immersion , % | 1.80 |
Recommended dosage
The recommended dosage of this product in various systems is 1 to 5‰ of the system. If a high degree of hydrophobicity is required, the dosage can be increased. The optimal dosage needs to be determined through testing.
Packaging and storage
- This product is packaged in paper bags, 20kg/bag;
- This product should not be stored at excessively high temperatures ; a storage temperature of 10 ~ 25 ℃ is recommended.
- Store in an airtight container to prevent moisture and pressure . The storage time should not exceed 6 months.
Technical support
- The company’s technical personnel provide consulting services in the preparation process of various formula systems;
- Technology tracking, in conjunction with the long-term optimization of the formulation system.