AFM 55 is a special material which provides excellent electrical and thermal insulation and is highly resistant to heat. The soft material first turns hard at high temperatures, where it assumes a high level of mechanical strength. This gives it the ideal criteria for gaskets in welding equipment.
Technical Data (nominal thickness 2.00 mm)
Density g/ cm³ 1.8 - 2.0
Ignition loss acc. to DIN 52 911 % < 34
Tensile strength
acc. to ASTM F 152, across grain N/ mm² > 10
acc. to DIN 52 910, across grain N/ mm² > 8
Residual stress acc. to DIN 52 913
heated material (2h, 200 °C)
16 h, 300 °C N/ mm² ≈ 20
16 h, 175 °C N/ mm² ≈ 28
Compressibility and recovery
acc. to ASTM F 36, procedure J
compressibility % 4 - 10
recovery % > 50
Dielectric strength acc. to DIN 53481, at constant voltage fresh material (48 h, room temp., 60% rel. hum.)
kV/ mm ≈ 8.5
heat- treated material (2 h, 200 °C) kV/ mm ≈ 10.0
Short- term peak temperature °C 400
Maximum continuous temperature °C 300
Maximum operating pressure bar 100
Max. continuous temperature and max. pressure must not occur
simultaneously.