A.10.12. Scotchweld
EC 2216 (5 pbw base / 7 pbw accelerator)
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PRODUCT |
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Type |
2-part structural adhesive. |
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Chemical Composition |
Modified Epoxy |
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Manufacturer |
3M Belgium Hermes
Laan, 7, B-1831
Diegem Belgium |
Tel: +32 (0)2 722 51 11 Fax: +32 (0)2 720 02 25 Email: www.3m.com |
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EXPERIENCE & AVAILABILITY |
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Development Status |
Commercial Product |
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Cost Range |
Medium |
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Lot Reproducibility |
Fair |
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Space Experience |
Extensive |
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GENERAL PROPERTIES (Physical,
Mechanical, Thermal, Electrical, Optical) |
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Nature |
Typical Value |
Remarks |
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Pot Life |
90 mins. |
Manufacturer’s Data |
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Tensile Shear Strength |
21.3 MPa |
@ 24°C |
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Tensile Peel Strength |
3.6 Nmm-1 |
@ 24°C |
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Specific Heat |
1.34 J g -1 °C -1 |
@ 0°C |
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Glass Transition Temperature |
11.8 °C |
TMA |
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Thermal Expansion Coefficient |
45 x 10-6 °C –1 182 x 10-6 °C –1 |
-100°C to 0°C 40°C to 100°C |
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PROPERTIES RELEVANT TO SPACE USE |
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Nature |
Typical Value |
Type of Test |
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Temperature Range |
-50°C to 80°C. |
Long term. |
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Toxicity/Offgassing |
Pass |
NASA NHB 8060-1A |
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Outgassing |
TML = 1.42%, RML =0.75%, CVCM = 0.01% |
ECSS-Q-70-02 |
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Flammability |
Pass |
NASA NHB 8060-1B |
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SPECIAL RECOMMENDATIONS |
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·
The accelerator (catalyst) is sensitive to
atmospheric humidity and CO2. Minimal exposure to atmosphere is
recommended during storage and mixing. ·
Recommended cure is 2 hours at 70°C. ·
Quality control test by micro-VCM method
(ECSS-Q-70-02) is recommended. |
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