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0709 Polyurethane Adhesive
Ideal for advanced electronic assembly
0709 is a dark gray, thermally conductive, precision mixed, degassed, and frozen polyurethane adhesive compound for advanced electronic assembly. 0709 (Hacthane 121 B‐1) is HMS‐2353, Type IV certified. This thixotropic compound is suitable for electronic bonding, staking, and may be used as a fillet as well. 0709 has a thermal conductivity of 0.9 W/mK, ideal for heat dissipation of components. 0709 cures to a tough and flexible material with low modulus and a very low Glass Transition Temperature (Tg). The cured material’s ability to not crack or harm bonded rigid components during thermal cycling provides a major advantage, as it will not compromise the integrity of the component. The CTE of 0709 is lower than conventional polyurethane elastomers, while retaining relatively low modulus. 0709 provides thermal conductivity and strain relief for many staking applications.
Uncured
| Pot Life @ 25°C | 1.5 hours |
|---|---|
| Viscosity @ 25°C | Paste |
| Shelf Life @ ‐40°C | 3 months |
Cure Options
1.5 hours @ 74°C 24 hours @ 25°C (Handling) 72 hours @ 25°C (Full Cure)
Cured Properties
Based on cure of 1.5 hours @ 74°C
| Color | Dark Gray |
|---|---|
| Shore A Hardness | 88 |
| Glass Transition Temp (°C) | ‐65 |
| Density (g/cc) | 2.3 |
| Lap Shear 2024T3 Clad (psi) | 750 |
| Elongation (%) | 40 |
Electrical Properties
Based on cure of 1.5 hours @ 74°C
| Dielectric Constant | 4.6 @ 1 MHz |
|---|---|
| Volume Resistivity (ohm‐cm) | 1.0E 14 @ 500 VDC |
Thermal Properties
Based on cure of 1.5 hours @ 74°C
| CTE below Tg (ppm/°C) | 55 |
|---|---|
| CTE above Tg (ppm/°C) | 140 |
| Glass Transition Temp (°C) | ‐65 |
| Operating Temp. Range (°C) | ‐100 to 125 |
| Thermal Conductivity (W/mK) | 0.9 |
Acoustic Properties
| Velocity (m/s) | 1,434 |
|---|---|
| Impedance (MRayls) | 3.275 |
| Loss (dB/cm‐MHz) | ‐12.4 |
| Density (g/cc) | 2.28 |
Key Features
- Hacthane 121 B‐1
- HMS‐2353, Type IV
- Thixotropic
- Thermally Conductive
- Electrically Insulative
- Semi‐flexible
- Long Pot Life
- Low Glass Transition Temperature
- Bonds Well to Most Substrates
- Solvent Resistant
- Hydrolytic Stability
- √ RoHS Compliant
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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