SynTherm® – Insulating Materials SynTherm® H (Polyimide film)

SynTherm® H is a polyimide film manufactured with the raw materials of pyromellitic dianhydride and 4.4-diaminodiphenyl ether synthetic resin.

SynTherm® H offers a unique combination of properties at the highest level, which are recommended for many applications in numerous branches. SynTherm® H sustains it's excellent physical, electrical and mechanical properties within a wide temperature range. For short time it is also applicable for temperatures from -269 °C to +400 °C and it is used in systems of class H. It has low flamability, is self-extinguishing and has no melting point. SynTherm® H offers a high chemical resistance - an organic solvent is unknown up to now. It has also a high resistance to beta and gamma radiation.

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Application

SynTherm® H is especially for applications with high operating temperatures for which other films are not applicable.

Standards

  • UL listed(E358562), UL 94 V-0, UL RTI >200 °C

Delivery forms

Film thickness in µm:
25, 50, 75, 100, 125, 150, 175, 200

SynTherm® H can be supplied:

  • in slit rolls from widths of 6 mm (depending on thickness)
  • in rolls approx. width 500 mm up to 1000 mm


Feathering:

  • depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
  • from widths of 10 to 240 mm and thickness on request

Base

Pyromellitic dianhydride and 4.4-diaminodiphenyl ether synthetic resin

Punched parts, bent & formed parts

We offer a wide range of punched and formed parts: Rolls, individual parts unsorted, sorted or stacked, adhesive on one or both sides, non-adhesive, with or without a grip tab.

 

More about punched parts

Technical data

Typical mechanical properties
Property Unit of measure
Nominal thickness µm 12.5 25 40 50 75 100 125 150 175 200
Thickness tolerance µm +1.5/-2.5 ±2.5 ±4 ±5 +7.5/-6 +8/-7 ±8 ±8 ±8 ±8
Density g/cm³ 1.42 1.42 1.42 1.42 1.42 1.42 1.42 1.42 1.42 1.42
Shrinkage at 150 °C % 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Tensile strength longitudinal MPa ≥135 ≥150 ≥150 ≥150 ≥150 ≥150 ≥150 ≥135 ≥135 ≥135
Tensile strength transversal MPa ≥115 ≥130 ≥130 ≥130 ≥130 ≥130 ≥130 ≥115 ≥115 ≥115
Elongation at break longitudinal % ≥50 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60
Elongation at break transversal % ≥50 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60 ≥60
Typical electrical properties
Property Unit of measure
Nominal thickness μm 12.5 25 40 50 75 100 125 150 175 200
Dielectric strength short term AC kV/mm ≥130 ≥150 ≥150 ≥150 ≥150 ≥150 ≥150 ≥120 ≥120 ≥110
Specific surface resistivity Ω/m ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13 ≥1x10^13
Volume resistivity Ω x m ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10 ≥1x10^10
Dielectric constant (AC 50 Hz, 25 °C) 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4 3.5±0.4
Dielectric loss factor (AC 50 Hz, 25 °C) 10^-3 10^-3 10^-3 10^-3 10^-3 10^-3 10^-3 10^-3 10^-3 10^-3