A.14.11. Stycast 1090

PRODUCT

Type

Syntactic casting, potting, foam, 2-part.

Chemical Composition

Epoxy.

Manufacturer

Emerson & Cumming

          Nijerheidsstraat 7,

          B-2260 Westerlo

          Belgium

Tel: +32 14 56 25 00

Fax: +32 14 56 25 01

Email:

www.emersoncuming.com

EXPERIENCE & AVAILABILITY

Development Status

Commercial Product

Cost Range

Medium

Lot Reproducibility

Excellent

Space Experience

Extensive

GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)

Nature

Typical Value

Remarks

Specific Gravity

0.88

Manufacturer’s Data

Viscosity (before reaction)

30 000 cps

Manufacturer’s Data

Pot Life

30 mins.

Manufacturer’s Data

Hardness

82

Shore D

Compressive Modulus

25 MPa

Manufacturer’s Data

Thermal Expansion Coefficient

40 x 10-6 °C -1

Manufacturer’s Data

Thermal Conductivity

0.167 W m-1 °C -1

Manufacturer’s Data

Dielectric Constant

3.9

@ 60 Hz.

Loss Factor

0.02

@ 60 Hz.

Dielectric Strength

14.8 kV/mm

Manufacturer’s Data

Electrical Resistivity (volume)

1010 W m

Manufacturer’s Data

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

-75°C to +200°C.

Manufacturer’s Data

Outgassing

TML = 0.75%, RML =0.35%, CVCM = 0.06%

ECSS-Q-70-02

Toxicity/Offgassing

Pass

NASA NHB 8060-1A

Water Absorption

0.4%

24 hours @ 25°C

Flammability

Pass (23.8% O2)

NASA NHB 8060-1B

SPECIAL RECOMMENDATIONS

·          This product is filled with micro-balloons which must be thoroughly dispersed at the time of use.

·          The resin must be deaerated (by vacuum exposure) before casting and also briefly after casting.

·          Recommended cure is 24 hours at room temperature. Post cure at 60°C may be applied to reduce outgassing.

·          Post cure at 60°C for 24 hours is compulsory when material is used as insert potting.

·          Temperature range and cure schedule are dependent on the catalyst used. Both 9 and 11 have space approval, and experience in space use.

·          Different catalysts will also affect other properties.