502 gule :1.Sole ingredient: Does not have the resolver, the easy to operate 2.Instantaneous then: In use atmosphere micro moisture, is inscribing in the extremely short time. 3.Normal temperature hardening: Cannot heat up under the normal temperature then to use. 4.transparent colorless: The effect good does not deteriorate. 5.Compares the macroviscosity: Suits porous and absorptive material quality joint. This product single component, the curing velocity are quick, the easy to operate, the cementation strength are strong, the cementation material is widespread, may use in the steel and iron, the non-ferrous metal, the rubber, the leather, the plastic, the ceramics, the glass, the lumber and so on, but uses in the polyethylene, the polypropylene, the teflon product, the material surface must after the special handling. Widely uses in the electric appliance, the measuring appliance, the machinery, the electron, the optical instruments, the medical service, the light industry civil waiting till the profession.