Dealing with high oxidation or old assembly parts is way more productive when instead of a “go-to” ROL0 flux an engineer summons a specialty high activity flux – NWS.
NWS series is a New Water Soluble formulation with highly desirable industrial properties – efficient oxides mitigation, sheer wetting capabilities, and high tolerance to many different surfaces.
NWS uses innovative polymer-dendrimer activator coupled with a highly stable clean rinsing binder resulting in high activity.
While H1/M1 flux can be naturally outgassing, risk of voiding doesn’t affect solder spheres because a sphere is already formed, also since a chip is not yet on a board – standoff restrictions do not apply.
NWS is also very efficient for desoldering and at the same time prepares work area for oxide-free soldering – two in one shot.
NWS is available as a standard ORM1 flux NWS-4200-TF, lead-free ORH1 flux NWS-4200-LF-TF and as an enhanced ORH1 formulations NWS-4200-4-TF and NWS-4200-6-TF with 4% an 6% chlorides respectively. These modifications provide maximum impact and increase wetting and prepping for metals even on highly oxidized boards and old parts.
Besides highly successful organic-based formulations NWS lineup also features resin based (REM1) universal flux – NWS-4400-HA/LF-TF.
NWS – Winning In Cleaning
As a rule of thumb removing M1/H1 flux residues is paramount, however it is an easy task – use warm de-ionized water at 40-60°C with recommended water pressure of 30-50 PSI – NWS residue is completely water soluble!
|Viscosity – Malcom @ 10 RPM/25°C (x103mPa/s)
|M: >= 0.5% and <= 2.0%|
|H: >50% breakthrough|
|M: <1 decade drop (cleaned)|
Some of the popular alloys supported by this product
Storage and Handling
Tacky flux should be stored at room temperature (20-25 °C). Syringes and cartridges should be stored vertically with the dispensing tip down. Properly stored tacky flux has a 12 month shelf life.