The Rockshow - mine quick spray sealed material is a good toughness spray-breathable material for surface sealing. Component consists of two components: a resin and a catalyst. Two components, respectively, means a steel with a pressure tank, after mixing, using a dedicated spray gun for spraying, rapid prototyping after spraying will not fall off, cracking phenomenon. The Rockshow the scope of application (1) New Roadway surface coating, prevent weathering of rocks. (2) along goaf coal wall and roof coating to prevent Breathing of Gob and gas emission. (3) protect and refresh the concrete slurry surface of the roadway and chambers. (4) on the the masonry class of closed wall and coal Bifeng surface coating to prevent the leakage of carbon monoxide, methane gas. Rockshow Features (1) applies to simple shortcut (2) good bonding properties (3) good flame retardant properties (4) spray can be permanently sealed ⑤ good flexibility Rockshow technical data. Dope characteristic index (20 ° C hair) the resin catalyst viscosity (mpa.s,) 200 240 Density (g/cm3) 1.10 to 1.15 1.23 to 1.24 mixed volume ratio of 1:1 2 free foam parameters from the data (20 ° C) Time (sec) to tack-10 Time (sec) 25 ~ 30 Full cure time (seconds) 120 3. physical properties of the foam index data compression strength (deformation 10%) (kPa)> 150 Foam density (Kg/m3) 50 60 flame retardant performance in line with the MT-113