Insulation materials: PVC, silicone, fibre glass, FEP, MFA, PFA

unit of measurement pvc heat-resistance silicone fibre glass FEP PTFE
dielectric constant 10 -3 3,5 2,8-3,2 - 2,1 2,1
resistance by 20˚C Ω x cm 10¹²-10 15 10¹5 10 12 10¹8 10¹8
durability for breaking MPa 10-25 5-10 20 20-25 14-40
range of working temp. ˚C -25 - +105 -60 - +200 -50 - +400 -200 - +200 -200 - +260
prolonging when breaking % 150-300 200-350 - 250-350 240-400
density by 20˚C g/cm3 1,35 – 1,50 1,22 – 1,35 0,8 2,13 – 2,17 2,23
inflammable-ness - self-stalling weak-imflammable non-flammable non-flammable non-flammable
durability for - - - - - -
petrol - average nonresistant nonresistant v.good v.good
oils - good good good v.good v.good
alcohol - average average average v.good v.good
alkali - nieodporny good good v.good v.good
acid - nonresistant good good v.good v.good