HI-GRADE #784-10 ROSIN ACTIVATED (RA)
FLUX
Description
Hi-Grade #784-10 Rosin Flux is a
specially formulated rosin-activated flux consisting of pure rosin blended with a solvent
system exhibiting excellent wetting power. The rosin used is of extra high purity and free
from conductive contaminants.
The components in the solvent system are
also of highest purity and unique blending of selected solvents keep evaporation losses to
a minimum on continuos exposure to aeration and working conditions.
The Hi-Grade #784-10 Rosin Flux is
laboratory tested (both raw materials and finished product under strict quality control
for consistent composition and performance. It is proven in the field, and is
competitively priced.
Special Features
- Dependable soldering on copper, brass, copper-bearing
alloys,
- tin-plate, cadmium and gold plated surfaces
- Low capillary action of raw flux, but good capillary action
of solder
- Instant wetting
- Fast recovery of the foam column
- Less rejects
- Fewer touch-ups
- Non-tacky board surface shortly after soldering
Uses
Hi-Grade #784-10 Rosin Flux is
specially formulated for foam fluxing of printed circuits and other electronics
assemblies. It can also be used with excellent results on etched and printed circuit
boards.
Applications
The Hi-Grade #784-10 Rosin Flux is
formulated for use with foam flux operations as well as applying it by dipping, brushing
or spraying. Although there are no uniform working instructions because of the variety of
foam fluxing equipment on the market, the following guidelines will help assure dependable
soldered joints:
1. Maintain adequate and constant flux level
in the fluxing unit
2. Evaporation losses should be compensated by using Hi-Grade #16-784 Thinner
3. Keep equipment clean and avoid contamination particularly oil and water
4. Keep the air pressure low and make sure the air lines contain traps to remove water and
oils which may change the foaming properties of the flux
Residue
The residue is considered non-hygroscopic,
non-tacky and can be removed easily with Hi-Grade Rosin Removers. Alcohols and chlorinated
solvents will also remove the residue, but at a slower rate. It is suggested, when
applicable, to remove all undecomposed flux to attain higher reliability.
Physical Properties
| Flux Type |
: RA (Rosin Activated) |
| Physical State |
: Liquid |
| Colour |
: Amber |
| Solid Content |
:10 % ** |
| Spec. Gravity @ 77 deg. F (25 deg. C) |
: 0.814 +/- 0.003 |
| Flash Point |
: 61 deg. F TCC |
| Typical Water Extract Resistivity (as per ML
F- 14256D-1) |
: 45000 ohm-cm (Minimum) |
Fungus Resistance |
: Passes as per MIL-E-5272 |
*Percent Solids can be adjusted from
3% - 15%
Packing
23 litres or 6 US
gallon per container
209 litres or 55 USs gallon per container
Safety And Precautions
All fluxes with low flash joints should be
handled with utmost care and precaution. They should stored in a dry, well-ventilated area
and flames, sparks and direct heating should be avoided.
