Specification of CYH 500 Polyurethane injection JTCC
CYH 500 Single Component Hydrophobic type PU
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 30 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.
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
Advantages
Negative side application possible
Deep penetration into very small cracks
Foam increases in volume to fill cavities and voids
Excellent bond to wet surfaces
Good adhesive strength, tolerant of movement
Inert after curing, constant volume, no shrinkage
Does not create new cracks
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