Color polyurethane composite board Caigang polyurethane sandwich composite panels raw materials used mainly for color pressure plate and polyurethane foam polyurethane foam polyether or polyester as the main component A component polyisocyanate Cyanamid ester as a main component The B component. A, B two components in the event of mixing. Both chains increased in the event of reaction and the reaction of the coach at the same time, it will absorb moisture from the air, reflect the occurrence of deflation, generating a large number of bubbles in a very short period of time to form a foam structure solidified rock wool sandwich full of wool The unique properties of the core material in fire protection, thermal insulation Handan rock wool insulation panels, acoustic insulation and other aspects have a significant effect. Fire performance: rock wool insulation materials scaffold board, rock wool sandwich panel production process and formulation adopted, it has good fire resistance. Tests showed Jincheng rock wool insulation board, which has capacity of more than 1000 ° C fire resistance of. Rock wool sandwich has passed GLOROANO SPA Italy authoritative testing organizations test, according to the International Organization for Standardization (ISO), the British BS and German DIN standards, rock wool sandwich panels meet fire safety standards M.I14 / 09/61 91 No. letter and DM30 / 11/83 requirements. Test results were as follows: 1) 50mm thick rock wool sandwich RE130 80mm thick rock wool sandwich REL60 100mm thick rock wool sandwich REL 120