A.10.1. Araldite AV138/HV998 (100/40 pbw)

PRODUCT

Type

2-part adhesive paste

Chemical Composition

Epoxy

Manufacturer

Vantico Ltd.

Duxford,

Cambridge CB2 4QA

UK

Tel: +44 (0)1223 832121

Fax: +44 (0)1223 493230

Email: info@vantico.com

www.vantico.com

EXPERIENCE & AVAILABILITY

Development Status

Commercial Product

Cost Range

Low

Lot Reproducibility

Unknown

Space Experience

Good

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

Nature

Typical Value

Remarks

Pot Life

30 mins.

@ 23C

Tensile Strength

43 MPa

@ 40C

Fatigue Strength

>107 cycles

@ 25% Max. Strength

Thermal Expansion Coefficient

67 x 10-6 C -1

Between 18C and 93C

Thermal Conductivity

0.35 W m -1 C -1

@ 30C

Volume Resistivity

1.9 x 1013 W m

@ 22C

Glass Transition Temperature

66 C

T.M.A.

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

Up to 120C.

Long term.

Toxicity/Offgassing

Pass

NASA NHB 8060-1A

Outgassing

TML = 0.84%, RML =0.57%, CVCM = 0.02%

ECSS-Q-70-02

Flammability

Pass 24.5% O2

NASA NHB 8060-1B

SPECIAL RECOMMENDATIONS

          Mixing ratio 100 parts AV138 to 40 parts HV998 by weight.

          The material is available in thicknesses of 12, 25, 50, 75 and 125 mm.

          Sensitivity to water absorption by the catalyst before use. This may degrade outgassing and mechanical properties.

          Does not pass odour test with cure at RT; passes with cure at 65C.

          Recommended cure time: 48 hours at room temperature.

          AV138M is newer version of AV138.