Property 1)This is a extraordinaire product that on behalf of L’ISOLANTE insulation technology, 2)which provides users with the highest insulation performance, is suitable for very high thermal insulation requirements of industrial, commercial, civil and public buildings in hot and cold water air conditioning system. 3)K-FLEX ST get the certificate from U.S. FM project insurance. Its Fire resistance achieves BS476 Part6 1989's CLASS O standard, and received certification Stuttgart FMPA of food industry , which provides users with the highest level of security. 5)working temperature : -200C-+105C 6)thermal conductivity : when temperature is -20C ,it is not more than 0.033W/(m.k) when temperature is 0C, it is not more than 0.035 W/(m.k) when temperature is 20C,its is not more than 0.037/W/(m.k) 7) resistance to fire:class P,class 1,class o. 8)water vapor pemeability :1.96*10-11 g/m.s.Pa) 9)water vapor diffusion reistance: it is equal or more than 10000. 10)density: it is not more than 70kg/m3 11)28 days water absorption rate: it is no more than 1.1. 12)noise reduction: 35dB 13)ozone resistance: good 14)flexibility: good 15) resistance to U.V:ok 16)resistance to oil and greases: good 17)resistance to mildew: it is suitable in no mildew environment.