![]() ![]() Each is available with a variety of activity levels, physical qualities of their residue, and cleaning methods required. There are five main categories in QQ-S-571E. Residue may be removed with an appropriate solvent.įlux categories are defined by Military Specification QQ-S-571E as well as the IPC flux rating system. Maximum safe time before cleaning is product dependent. RA flux residue is corrosive and should be removed as soon as possible after reflow to prevent damage to your assembly. Rosin Activated (RA)Ĭonsisting of rosin, solvent, and aggressive activators, RA flux has higher activity than RMA for moderately oxidized surfaces. Residue may be removed with an appropriate solvent. RMA flux residue is clear, soft, non-corrosive, and non-conductive. Rosin Mildly Activated (RMA)Ĭonsisting of rosin, solvent, and a small amount of activator, most RMA flux is fairly low in activity and best suited to easily soldered surfaces. Acid & Petrolatum-based paste flux, petrolatum-based soldering paste that contains zinc chloride and ammonium chloride. Residue is easily removed with 60° C (140° F) water at 40 psi (3 bar) pressure. Maximum safe time before cleaning is product dependent. 100 Lead-Free paste flux cleans and fluxes copper piping to provide uniform solder flow Petroleum base provides. #Flux paste freeWS flux residue is corrosive and should be removed as soon as possible after reflow to avoid damage to your assembly. Recommended for both Water and Gas applications Water soluble paste that wont leave residue in water piping Non-acid, non-toxic, and lead free Ph. Water Soluble (WS)Ĭonsisting of organic acids, thixotrope, and solvent, WS flux comes in a wide range of activity levels for soldering to even the most difficult surfaces. ![]() NC residue is clear, hard, noncorrosive, non-conductive, and designed to be left on your assembly. EFD provides a wide array of formulations for use in a variety of applications.Ĭonsisting of rosin, solvent, and a small amount of activator, NC flux has low activity and is suited to easily soldered surfaces. Unlike liquid fluxes, tacky FluxPlus can be applied exactly where needed without contaminating nearby areas. FluxPlus Paste Flux Formulated to work with any alloy and heating process, Nordson EFD’s FluxPlus™ is perfect for BGA rework, mobile device repair, reflowing solder paste, and more. ![]()
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