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BOW
ELECTRONIC SOLDER
TECHNICAL BULLETIN
BOW #802
HALIDE FREE ROSIN FREE/ RESIN FREE FLUX
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BOW #802 is Halide
free; organic based flux with very low non-evaporating
content. It is designed for wave soldering of conventional
and SMT boards. It contains no Rosin or Resin. This
is often an advantage in electrical PIN testing, or
in the soldering of certain types of switches with exposed
contacts. The extremely small amount of residue is non-corrosive,
virtually non-ionic, and may be left on the boards after
soldering. Operating costs can thus be reduced greatly.
In general, there will appear to be no residue left
on the boards.
If boards contain bare copper surfaces, it is advisable
that they be free of oxides or other contamination for
optimum soldering.
Under suitable conditions, BOW #802 may be used for
tinning, reflow soldering or touch-up. |
When the residue of
BOW #802 was tested under the conditions of IPC-SF-818,
Class 3*, the surface insulation resistance was greater
than 10 OHMS.
*IPC Comb Pattern B, 85°C, 85% RH, 168 Hours, 45
V DC Bias during exposure, 100 v DC for SIR Readings
while test boards were inside the chamber. SIR requirement:
10 OHMS.
In addition, the flux and flux residue pass the corrosion
tests of IPC-SF-818 which classify it as L3N. (Low or
no flux/flux residue activity; Class 3 SIR; not cleaned). |
| Bow #802 may be used
in both foam and wave fluxing equipment. It may also
be applied by brushing, dipping or spraying. |
| Flash
Point |
71°F TCC |
| Specific Gravity |
0.840 ± .005 @ 77°F |
| For every degree above 77° |
Subtract 0.0004 |
| For every degree below 77° |
Add 0.0004 |
| Color |
Clear, water-white |
| Solids Content |
Approx. 2.5 |
| Activator Type |
Organic Acid |
| Acid Number |
18.2 ± 1.8 |
| Flammable liquid, keep away from
sparks and open flame. Avoid prolonged skin contact
or breathing of vapors. Use with adequate ventilation. |
| BOW #802
flux is packaged in one gallon plastic jugs, five gallon
plastic pails and 55 gallon plastic drums. |
| BOW #802 may be maintained by controlling
the specific gravity with BOW #1200 Thinner. |
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Lead Free
Electronic
