Keratherm Green is a silicone elastomer films filled with aluminum oxide which is characterized by its excellent electrical characteristics. It exhibits good thermal behaviour. Optional fiberglass reinforcement leads to very good mechanical properties. These film types posess excellent mechanical stability along with good perforation strength. Because of its structure, Keratherm Green has very good self-adhesive properties. Adhesive coatings are optionally available.
Possible Thickness: 0.125mm – 0.500mm
high voltage units
Property Symbol Unit 86/37 Color green Thermal Properties Thermal Resistance Rth K/W 0.32 Thermal Impedance Rti °Cmm²/W
Thermal Conductivity λ W/mK 1.8 Electrical Properties Breakdown Voltage Ud;ac kV 8.0 Dielectric Breakdown Ed;ac kV/mm 26.0 Volume Resistivity Ωcm 2.5×1011 Dielectric Loss Factor tan δ 1 6×10-3 Dielectric Constant εr 1 2.9 Mechanical Properties Overall Thickness (±10%) mm 0.225 Hardness Shore A 65 – 75 Tensile Strength N/mm² 2.0 Elongation % 75 Physical Properties Application Temperature °C -60 to +250 Density ρ g/cm³ 2.29 Flame Class UL 94V-0
Type Film Structure Overall Thickness Tensile Strength Thermal Resistance mm N/mm² K/W Kin²/W 86/17 86/37 with fiberglass 0.225 >7.5 0.59 0.23 86/27 86/37 with fiberglass and adhesive coating 0.250 >7.5 0.61 0.26 86/47 86/37 with adhesive coating 0.250 3.0 0.56 0.20