Description
CYH-500 is a hydrophobic grout based on polyurethane.
Upon contact with water, CYH-500 reacts to closed cell rubber-like foam while expanding its volume up to 27 times. The cured material is of a constant volume. Since water is not a component of the foam structure, the cured material is essentially not affected by water or dryness. The reacted material does not shrink or swell. Depending on the pressure of injection, CYH-500 reacts to a very dense material or foam.
| SPECIFICATIONS | CYH 500 |
|---|---|
| Form | Liquid Type |
| Color | Dark Brown |
| Solubility in Water | Hydrophobic |
| Density (g/ml) | 1.12 |
| Viscosity (KS F 4923) | 100-200 mPa·s |
| Max. Expansion (25℃) | 2,700 % [Ratio 10:1 Resin : Water] |
| Induction Time (25℃) | 15 sec [Ratio 2:1 Resin : Water] |
| Gel Time (25℃) | 110 sec [Ratio 2:1 Resin : Water] |
| Tensile shear strengtd (23℃), (KS M 3705) | 4 N/mm2 |
| Appearance | Light yellow Polyuretdane Foam |
| Corrosiveness | Non-Corrosive |
| Chemical Resistance | Resistant to more organic Solvent, Mild Acids, Alkali |
| Shelf Life | 1 year when unopened and undamaged |
| Storage Condition | Store in a dry cool place |
| Packaging | 20 kg/pail |
Uses :
Areas of application include:
- Defective concrete (cracked or honeycombed)
- Concrete joints, Limestone, Brick construction
- Pipe intrusions, Waste water tanks
- Tunnels, Dams, Subway(Metro), Sewers, Manholes, Utility boxes, etc.
- Soil stabilization

