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	PRODUCT DATA of Dunmore DE028

Material

Dunmore DE028

Product Type

Thermoplastic film.

Chemical Composition

Polyethylene Terephthalate / PETP, 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

Commercial Product

Cost Range

Low to Medium

Lot Reproducibility

Good

Space Experience

Good

	PHYSICAL PROPERTIES

Specific Gravity

1.4

Standard Width

142 mm Data Quality: Manufacturer's data

Thickness

0.0063 mm Data Quality: Manufacturer's data

	ELECTRICAL PROPERTIES

Electrical surface resistance

1e16 Ohm @ 25°C, 38% RH Data Quality: Manufacturer's data

Electrical Volume Resistivity

1e14 ohm.m @ 25°C Data Quality: Manufacturer's data

	THERMAL PROPERTIES

Thermal Conductivity

0.61 W/m.K Data Quality: Manufacturer's data

Thermal Expansion Coefficient

30 μstrain/°C Data Quality: Manufacturer's data

Specific Heat

1.3 J/g.K Data Quality: Manufacturer's data

	OPTICAL PROPERTIES

Normal Emittance

0.02 Data Quality: Manufacturer's data

Solar Absorbtance

0.07 Remark: ASTM E-424 Method A

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Toxicity/Offgassing

Pass Test:NASA NHB 8060.1A

Temperature Range(space)

-180 to +150°C Test:Dupont Data

Outgassing(Avg data)

TML = 0.29%, CVCM = 0.00% Test:ASTM E-595

Moisture Absorption

Les than 0.8% @ 23°C Test:ASTM D-570-63

	SPECIAL RECOMMENDATIONS

Special Recommendations

Normal use is for internal sheets of multilayer insulation (MLI). Use depends on blanket type and requirement. Suitable venting should be considered for blanket use. Can also be used in crinkled form for cryogenic insulation. · This product is available with vacuum-deposited aluminium on one or both sides. · Widths up to 1574 mm available on special request. · The full Dunmore part number must be designated for precise material description. · This product can be perforated, embossed or crinkled if desired. Patterns are to be specified at the time of ordering. · Also available in 12.5, 25, 51 and 76 micron thicknesses. · Normal emittance value is measured on the aluminised surface.