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0308 Urethane Adhesive
Space flight grade; designed specifically for encapsulation
0308 is an opaque amber, one-component, precision mixed, degassed, and frozen, electrically isolating, Space Flight Grade urethane adhesive designed specifically for encapsulation with highly reliable dispensing. This material has a thixotropic consistency but will exhibit limited flow upon application. 0308 exhibits low thermal conductivity and can be cured at either room or elevated temperatures. It will bond well to most substrates such as metals, glass, ceramics, and most plastics. This material meets the NASA outgassing requirements with a TML of 0.69% and a CVCM of <0.01%. The material meets NASA's outgassing requirements.
Uncured
| Work Life @ 25°C | 30 minutes |
|---|---|
| Pot Life @ 25°C | 15 minutes |
| Viscosity @ 25°C | 80,000 cPs |
| Shelf Life | 3 weeks @ -40°C 3 months @ -60°C TBD @ -75°C |
Cure Options
8 hours @ 93°C 7 days @ 25°C 24 hours @ 23°C + 16 hours @ 65°C
Cured Properties
Based on cure of 8 hours @ 93°C
| Color | Opaque Amber |
|---|---|
| Shore A Hardness | 60 |
| Glass Transition Temp (°C) | -70 |
| Density (g/cc) | 0.99 |
| Lap Shear 2024T3 Clad (psi) | 1000 |
Electrical Properties
Based on cure of 24 hours @ 23°C + 16 hours @ 65°C
| Volume Resistivity (ohm-cm) | 4.1 E 14 @ 500 VDC |
|---|
Thermal Properties
Based on cure of 24 hours @ 23°C + 16 hours @ 65°C
| CTE above Tg (ppm/°C) | 204 |
|---|---|
| CTE below Tg (ppm/°C) | Not Determined |
| Glass Transition Temp (°C) | -76 |
| Operating Temp. Range (°C) | -100 to 130 |
Outgassing Properties
Based on cure of 24 hours @ 23°C + 16 hours @ 65°C
| TML (%) | 0.63 |
|---|---|
| CVCM (%) | <0.01 |
| WVR (%) | 0.07 |
Outgassing Properties
Based on cure of 9 hours @ 65°C
| TML (%) | 0.69 |
|---|---|
| CVCM (%) | <0.01 |
| WVR (%) | 0.09 |
Acoustic Properties
| Velocity (m/s) | 1,609 |
|---|---|
| Impedance (MRayls) | 1.591 |
| Loss (dB/cm-MHz) | -6.0 |
| Density (g/cc) | 0.99 |
Key Features
- Bonds Well to Most Substrates
- Electrically Isolating
- Thixotropic Consistency
- Room or Elevated Temperature Cure
- Space Flight Grade
- User-friendly Packaging
- Meets NASA Outgassing Requirements
The data contained herein is provided for informational purposes only and are believed to be reliable. APPLI-TEC does not guarantee suitability of this product for any resultant application or freedom from patent infringement. Furthermore, APPLI-TEC disclaims any liability for incidental and consequential damages of any kind including but not limited to lost profits.
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