CMC 70041, 70042 and 70043 – Preliminary Technical Data Sheet Preliminary

Polyimide film filled with ceramics for significantly higher thermal conductivity compared to Kapton® MT while still retaining outstanding mechanical and electrical properties.

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Issued: 2017-08

Product description

Polyimide film filled with ceramics for significantly higher thermal conductivity compared to Kapton® MT while still retaining outstanding mechanical and electrical properties. Perfectly suited for insulation purposes in electronics where controlled heat transfer is essential.

Property Value
Colour yellow

Mechanical properties

Property Value
Tensile strength according to ASTM D882 ca. 80 to 90 MPa or N/mm²
Elongation at break according to ASTM D882 ca. 50%
Modulus according to ASTM D882 ca. 4,2 GPa or kN/mm²

Electrical properties

                                                        CMC 70041        ca. 5,4 kVeff./mil
 Dielectric strength according to ASTM D149             CMC 70042        ca. 4,9 kVeff./mil
                                                        CMC 70043        ca. 3,9 kVeff./mil

Thermal properties

                                                        CMC 70041        ca. 0,78 W/(m·K)
 Thermal conductivity according to ASTM D5470           CMC 70042        ca. 0,80 W/(m·K)
                                                        CMC 70043        ca. 0,85 W/(m·K)

Other properties

Property Value
Flammability according to UL94 V-0

Information concerning regulation (EC) No 1907/2006 (REACh): This product contains one or more substances of very high concern (SVHCs) from the candidate list in amounts greater than 0.1% (w/w). Safe handling instructions can be found here: http://www.cmc.de/en/technical-information/reach.html

The technical data are average values and do not replace the user's own testing. Subject to change without notice. The PDF data sheet is binding.