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BOW
ELECTRONIC SOLDER
TECHNICAL BULLETIN
BOW # 124
MILDLY ACTIVATED ROSIN FLUX, TYPE RMA
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| Bow # 124 RMA Flux consists of a
homogeneous solution of water-white rosin in a multi-component
solvent system with a brominated organic activator.
It is completely chloride-free. The flux is widely used
in electronic applications requiring excellent soldering
activity and yielding residues with high water-extract
resistivities. Bow # 124 RMA Flux becomes active above
175°C/340°F, attaining peak activity in the
temperature range 200-260°C/390-500°F, where
it promotes excellent solderability. It can also be
used for high-temperature soldering applications, such
as mag-wire tinning at temperatures in the 750-800°F
range. |
- A mildly activated rosin flux for general-purpose
soldering of PCB's, wire, cable, and semiconductors,
and hand soldering applications.
- Excellent for a variety of metals including copper,
gold, nickel alloys, silver, and tin.
- Can be used for automated and manual soldering
operations.
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| Bow # 124 RMA Flux is an excellent choice for soldering printed circuit boards (PCBs), wire leads, cables, and component tinning. Bow # 124 RMA Flux can be used to solder many different metals and alloys including copper, gold, alloy 42, alloy 51, nickel alloys, and other metals commonly used in electronics applications.
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| The residue from this flux has high resistance value even at temperatures as high as 160ÕF. It is non-hygroscopic, non-corrosive and highly insulated; thus it need not be removed. |
| Color |
Light Brown Liquid |
| Specific Gravity |
0.90 ± 0.02 @ 20°C/68°F |
| Density |
7.5 lbs./gallon @ 20°C/68°F |
| Solids Content |
45.5 ± 2.0% |
| Free Acidity |
None |
| Chloride Content |
None |
| Inorganic Cations |
None |
| Soldering Range |
200-260°C/390-500°F |
| Spread Factor |
90 minimum |
| Flash Point (TCC.) |
12°C/53°F |
| Boiling Point |
85°C/180°F |
| Freezing Effects |
None |
| Residue Characteristics |
Non-Corrosive, Non-Conductive, Non-Hydroscopic |
| Water Extract Resistivity |
150,000 ohm/cm |
| Bow # 124 RMA Flux meets all the
requirements of Mil-F-14256, Type RMA; IPC ANSI-J-STD-004
Type ROM1. |
Bow # 124 RMA Flux can be applied
by foaming, brushing, dipping, rolling and spraying.
Soldering need not be carried out immediately after
fluxing. The residues are completely non-corrosive,
non-conductive and fungus-proof, and need not be removed.
However, cleaning is easily accomplished by vapor-degreasing
methods, using appropriate solvent systems.
The specific gravity of the flux increases with prolonged
use as the solvents evaporate. It can be restored to
the recommended value by adding Bow # 1000T Thinner
to the flux and mixing thoroughly. |
Bow # 124 RMA Flux is flammable and
should be stored in plastic containers away from heat,
sparks or an open flame. Use adequate ventilation to
remove flux fumes, along with fumes from the soldering
station. Avoid contact with skin and eyes and avoid
breathing vapors. Flux has a two (2) year shelf life.
A Material Safety Data Sheet (MSDS) is available on
request. |
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Lead Free
Electronic
