Malisan: Malisan is a the polyethylene imine plastic resin material having a low viscosity. Plugging the resin and catalyst mixed with the reaction, or water to produce expansion, the reaction itself or foam generating the polyhydric mesh density elastomer. When it is high pressure to push injected under high pressure into the the coal rock or concrete cracks (closed fracture of the coal strata open), can be extended along the the coal rock or concrete cracks sighted until all fissures (imperceptible to the naked eye, fissures and cracks under high pressure to re-open) filling. The coal strata reinforcement plugging cracks, coal rock without water product expansion rate corresponding smaller (expansion ratio is 2 to 4 times), high-pressure thrust Malisan pressed into and filled with all the gaps, to stanch the purpose. Malisan what characteristic? It plasticity. With the change of formation changes, not fracturing, resulting in cracks, with the formation to form a consistent life, completely changed the effect of sealing done before, to solve the traditional construction of large construction, high labor intensity, easy to leakage, easy fracturing, short lifetime. Its good airtight, water shut-off rate can reach 90-95%. Commonly used in many operations Malisan filling and plugging holes. Malisan use: reinforcement fractured and unstable formations; closed water inlet; dense strata; rock reinforcement; the bolt sealing and gas hole plugging. Mine Malisan technical data: 1. Component resin catalyst 2.20 ° C Density (g/cm3) 1.0 1.2 3.220 ° C a viscosity (mPa? S) 200 300 4. The mixing ratio (volume ratio) 1 1 5. 5-25 5-40 6.20 ° C Storage Temperature (° C) storage period (months) 667. Packaging (plastic bucket) 25kg 30kg 8. Curing the matter 20 ° C, the reaction data beginning of the reaction (min) 2:00 completion of the reaction (min) 3:00 9. Expansion in multiples of 5-10 10. Compressive strength (MPa)> 10