K-FLEX ST(0 class )1)working temperature : -200C-+105C2)thermal conductivity(test standard is BS874 Part 2)3)when temperature is -20C ,it is not more than 0.033W/(m.k)4) when temperature is 0C, it is not more than 0.035 W/(m.k)5)when temperature is 20C,its is not more than 0.037/W/(m.k)6)resistance to fire(test standard is BS476 Part 5,BS476 Part 7,BS476 Part 6)class P,class 1,class o.7)water vapor pemeability :it is equal or less than 1.96*10-11 g/m.s.Pa)---(test standard is BS4370 /DIN 52615)8)water vapor diffusion reistance: it is equal or more than 10000. --(test standard DIN52615)9)density: it is not more than 70kg/m310)28 days water absorption rate: it is less than 1.1.11)noise reduction: 35dB--(test standard is DIN4109)12)ozone resistance: good13)flexibility: good14)resistance to U.V:ok15)resistance to oil and greases: good16)resistance to mildew: it is suitable in no mildew environment.