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	PRODUCT DATA of Dunmore DE320

Material

Dunmore DE320

Product Type

Thermal Control Polymer Film.

Chemical Composition

Polyimide (Kapton HN), Aluminised.

Name of Manufacturer

Dunmore Coorperation Keystone Industrial Park, 2900 Wharton Rd., Bristol, PA 19007, USA +1 215 781 8895 +1 215 781 9293 www.dunmore.com

	EXPERIENCE IN PRACTICE

Development Status

Special Commercial Product

Cost Range

High

Lot Reproducibility

High

Space Experience

Good

	PHYSICAL PROPERTIES

Specific Gravity

1.42 Data Quality: Manufacturer's data

Standard Width

112 mm Data Quality: Manufacturer's data

Thickness

0.025 mm Data Quality: Manufacturer's data

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

1.5e15 ohm.m Data Quality: Manufacturer's data

	THERMAL PROPERTIES

Thermal Conductivity

0.155W/m.K @ 23°C Data Quality: Manufacturer's data

Thermal Expansion Coefficient

20 μstrain/°C (-14 to 38 °C) Data Quality: Manufacturer's data

Specific Heat

1.09 J/g.K @ 23°C Data Quality: Manufacturer's data

	OPTICAL PROPERTIES

Solar Absorbtance

0.14 Remark: aluminised surface) Data Quality: Manufacturer's data

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Temperature Range(space)

-190 to +204°C Test:Average exposure range

Outgassing(Avg data)

TML = 0.21%, CVCM = 0.00% Test:ASTM E-595

Moisture Absorption

1.8% @ 23°C and 50% RH Data Quality: Manufacturer's data

	SPECIAL RECOMMENDATIONS

Special Recommendations

Normal use is for external sheet on multilayer insulation (MLI). Suitable venting must be provided, where applicable. · This product is also available in 7.6, 12.6, 51.76 and 125 micron thicknesses. · The 7.6 and 12.6 micron grades are available in widths up to 1270 micron; 25 to 125 micron grades in widths up to 1524 micron. · The full Dunmore part number must be designated for precise material description. · Perforated or embossed versions of the above-mentioned films are available. Patterns are to be specified at the time of ordering (film thickness may determine selection). · These products can also be aluminised on both sides, if desired. · Solar absorptance value is measured on the aluminised surface.