CYH-500 is a hydrophobic grouting agent based on polyurethane.
Upon contact with water, it 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.

Use areas of application :

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

Advantages of CYH-500 :

Negative side application possible.

Deep penetration into very small cracks.

Foam increases in volume to fill cavities and voids.

Excellent bond to surfaces.

Good adhesive strength, tolerant of movement.

Inert after curing, constant volume, no shrinkage.

Dose not create new cracks.

Packing Container (Pail) was made according to under the Article 205-2 of the Regulation for the 

Carriage and Storage of Dangerous Goods by Ships and the provisions of IMDG Code under the 

authority of the Government of Republic of Korea.

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 strength (23℃), (KS M 3705) : 4 N/mm2

Appearance : Light yellow Polyurethane 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