BA 31968 HTCRC / VDA / 50 Gauge Polyimide/ Fiberglass 116
BA 31968 is a 50-gauge polyimide based product that is aluminized on one surface, coated with a corrosion resistant coating and reinforced on the other surface with a 116-glass fabric. BA 31968 is primarily used as an inner layer on an MLI blanket to resist tearing from handling or inner contact on the spacecraft bus itself how it works. BA 31968 offers excellent physical, thermal, electrical and optical properties and complies with the requirements of ASTM D-5213.
For a Technical Data Sheet, please contact us.
Applications:
- Inner Layer MLI
Properties:
|
Construction/ Typical Properties |
Value |
Test Method |
|
Tensile Strength (Warp): |
>45 lb/in |
ASTM D882A |
|
Tensile Strength (Fill): |
>35 lb/in |
ASTM D882A |
|
Film Thickness: |
0.0005 inches |
ASTM D1000 |
|
116 Glass Thickness: |
0.003 inches |
|
|
Total Thickness: |
<0.0058 inches |
ASTM D1000 |
|
Interplay Adhesion: |
>1.0 lbs/in |
ASTM D903 |
|
Weight: |
<153 g/m2 |
|
|
Thermal (Intermittent): |
-250 to 315oC (-420oF to 600oF) |
|
|
Thermal (Continuous): |
-150 to 200oC (-300oF to 400oF) |
|
|
Metallization Type: |
99.99 % Pure Aluminum |
|
|
Metallization Deposition: |
300 Å Minimum |
|
|
Electrical Resistance: |
≤1.0 Ohms/square |
ASTM D257 |
|
Optical Emittance (VDA Side) : |
≤ 0.04 |
ASTM E408 |
|
Optical Emittance: (Fiberglass Side): |
≥0.80 |
ASTM E408 |
|
Optical Absorptance (VDA Side): |
≤ 0.14 |
ASTM E903/ASTM E490 |
|
Optical Absorptance (Fiberglass Side): |
≤0.35 |
ASTM E903/ASTM E490 |
|
Salt Spray Resistance: |
No Visible Degradation |
ASTM B117 (5% / 168 hrs) |
|
Outgassing: |
This material meets NASA guidelines per ASTM- E595-93 as follows: TML-WVR < 1.0%; CVCM < 0.1% |
|