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| SUPERBONDER®
SMA |
SUPERBONDER®
surface mount adhesive is epoxy resin electronic special
adhesive specifically prepared as per performance and
quality requirement of high-speed Dispensing and large
amount of stencil printing by PCB manufacturers.
SUPERBONDER® 2068 is fluid with high
viscosity and high thixotropic property, suitable for
both syringe dispensing and stencil printing; SUPERBONDER®2081
is fluid with low viscosity and high thixotropic property,
specifically for stencil printing. This SMA has the
following properties: |
- Consistent high dot profile;
- Excellent green strength;
- Fast curing;
- 6 month shelf life at refrogerator;
- High thixotropic index;
- Non-slumping or non-stringing.
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| Typical feature before curing |
| Feature |
Test value |
| Composition |
Epoxy resin |
| Density (ASTM D792,c/cc) |
1.20 |
| Viscosity [ASTM d1824(RTV SPINDLE
#7)] |
2,560,000
386,000 |
| Color |
Red |
| Thixotropic index (ASTM D1824) |
6.3 |
| Dot form (w/h) |
<2.0 |
| Storage period [month@5°C(41°F)] |
6.0 |
| Lap shear strength [ASTM D1002
psi(Al/Al@25°C(77°F)] |
1,400 |
| Vitrification point [ASTM D696,
Tg(by TMA)] |
137°C |
Coefficient of thermal
expansion [ASTM D696(by TMA)]
|
alpha1 |
48×10-6
170×10-6 |
| alpha2 |
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| Typical feature after curing |
| Feature |
Test value |
| Insulating strength (ASTM D149
volts/mil) |
420 |
| dielectric constant (ASTM D150@
1MHz) |
3.15 |
| Dielectric loss factor (ASTM D150@
1Mhz) |
0.022 |
| volume specific resistance (ASTM
D257 ohmcm) |
2.2×1016 |
| Surface resistance (ASTM D257
ohmsq/cm) |
1.1×1015 |
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| Curing condition (IR or Convection
Ovens) |
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| Color |
- This product has red and yellow colors for customer
to select
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| Cleaning |
- Non-cured adhesive can be washed from PCB with
isopropyl alcohol.
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| Storage and use |
- This SMA is stored under the cold storage (5°C)
condition. Its service life can be extended.
- The dispensing nozzle should be cleaned with solvent
(e.g. isopropyl alcohol) before use.
- The SMA after cold storage should be restored
to the room temperature before use.
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