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Product
Data Sheet
WS-3310
Organic Water Soluble FLUX
The WS-3310 is developed
for the present day circuit board designs and assemblies. With denser board
designs resulting in space restriction, the higher conveyor speeds, wider
variability in soldering of conductor surfaces and component leads; minimising
costs and time in touch ups and flux removal, and complying with environmental
regulations, the WS-3310 is the solution.
Its fluxing ability is much greater than that exhibited by activated rosin
fluxes, resulting in reduced touch-ups. This flux shows excellent capillary
action on plated through-holes allowing especially effective soldering of
multi-layer boards. The low solid content also allows for faster and more
efficient preheating. For after soldering, the boards can be effectively
cleansed with plain water. The flux is also designed to produce a minimal
amount of foaming during the cleaning operation such that problems associated
with excessive foaming are eliminated.
The neutral chemistry of this organic flux, WS-3310, is the reason why it
is unique; it is neither acid nor alkaline. This is the important factor
that relates directly to the reliability, the high speed soldering and cleaning
of printed circuit assemblies. With its good soldering properties, the WS-3310
improves overall durability and productivity. It does not attack properly
cured solder masks or laminates; and will not degrade the surface insulation
resistance of the soldered assembly. The assembled boards will be provided
with a high ionic cleanliness with the simple cleansing and removal of flux
residues with plain water without any need for additives.
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Application
The WS-3310 is an organic
flux, which is specifically made for use in the foam fluxing equipment.
It can also be applied by dipping or wave soldering methods. Unlike the
strong acid fluxes, the Ws-3310 is neutral and will not attack soldering
or cleaning equipment. The formulation of Ws-3310 does not include water
so there is no splattering of flux when the printed circuit assembly contacts
the solder wave. Preheating the component side of a double-sided circuit
board assembly to 82 - 90°C is recommended. This will evaporate the alcohol
solvent portion of the flux and bring the flux to its optimum activation
level. Besides, preheating of the board will also reduce the temperature
gradient before the board comes in contact with the solder wave. The specific
gravity of the flux must be checked at regular intervals. For the best soldering
results, Solvent 330 should be added as and when appropriate to attain the
correct specific gravity.
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Physical Properties
Appearance and Colour Specific Gravity @ 24°C
Flash Point
Spreading Coefficient (%)
pH Value (JIS Z 3197-4-10) Melting Point
Recommended SMT Thinner |
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Pale Amber
0.87 +/- 0.005
16°C
96
6.5 - 7.0
43 - 47°C
R330 |
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