Flux removers (defluxers) remove flux residues and other contaminants left by manufacture, rework, or repair of printed circuit boards. Residues from higher, lead-free temperatures are harder to clean. PWR-4, G3, E-LINE and Precision-V flux removers have been proven very effective at removing fluxes baked on at lead-free temperatures.
Micro-components and fine pitch leads are delicate and easily damaged, so brushing and scrubbing should be avoided if possible. The G3, E-LINE and Precision-V products have a powerful spray and strong solvent that blasts off residues and cleans areas under components that a brush cannot touch.
Techspray offers traditional solvent-based cleaners and cutting-edge water-based technologies marketed under the Techspray Renew brand. For more information, check out our A Thorough Comparison of Water Based Cleaners and Solvent Cleaners.
Techspray Renew branded cleaners are innovative solutions that combine the best of current “green” technologies to make the most powerful eco-friendly cleaners on the market.
All Techspray flux removers have the following advantages:
Every organization using hazardous chemicals within their facility has the responsibility to equip their facility and personnel to maintain exposure levels below the TLV. Personal monitoring badges can be used to measure exposure of a specific material. Then, depending on the threshold limit and the application, exposure can be controlled with PPE like masks, face shields, respirators, and even coveralls. If they don’t reduce exposure below the recommended limit, you will need to consider a special ventilation hood or even containment booth. As you can see, as the exposure limit gets down to a certain level, the equipment required to safely use the solvent can get impractical. At that point, your best option is to consider a safer alternative.
No, not if your concern is only reliability problems from ionic contamination. No-clean flux contains minimal ionic material that is fully consumed when the flux is activated, or in other words, brought to soldering temperature. If all of the flux isn’t activated, like when you apply a lot of flux but only solder a small area, you still need to clean the PCB.
If you are applying conformal coating, you should remove all flux residues, regardless of the type of flux. Most people understand that when painting something, the surface must be prepared so it is absolutely clean. Otherwise, the paint will quickly lift off the surface and peel off. The same logic applies to conformal coating, even when the contamination is from no-clean flux.