Zinc Ammonium Chloride Galvanizing Flux WIM PGF is a specially treated zinc ammonium chloride which can be used as either a wash or preflux or as a cover flux. It coats the work uniformly and retards the oxidation normally experienced with zinc ammonium chloride flux. By retarding the oxidation of the base metal better during the crucial time between fluxing and galvanizing, smaller amounts of iron decomposition products are formed and less dross is formed from this source. The improved wetting features of this flux dries the flux quickly to stop excessive sputtering and spitting as the steel enters the molten zinc. The improved wetting action also helps the molten zinc flow quickly and evenly over the work and problems such as warping of pipes is reduced because of this. When used as a cover flux it provides an active frothy blanket keeping the zinc under its surface clean. In conjunction with flux on the work from the wash flux it cleans off residual surface oxidation of the steel. This improved wetting and fluxing of WIM PGF out-performs untreated zinc ammonium chloride fluxes. RECOMMENDED USE Dissolve 180 to 240 gm/L ( 1-1/2 to 2 lbs/gal) WIM PGF The correct Baume ( SpG) will vary but is generally held at a level between 11 and 14 degrees Baume. Operating temperatures should be high enough to dry each load before it enters the kettle 71 C ( 160 F) is a typical operating temperature WIM Flux Additives WIM Flux Additive is a versatile additive for improving the fluxing properties of zinc ammonium chloride by reducing the amount of flux needed and sealing the fluxed steel better reducing dross formation in the kettle. Flux suppliers often set rates of flux usage in the range of 360 - 480 gm/L ( 3 to 4 lbs/gal) of zinc ammonium chloride. A preflux which contains the right amount and kind of wetting system can easily opeate in a 180 to 300 gm/L ( 1-1/2 to 2 lbs/gal) range without reducing the effectiveness of the flux. WIM Flux Additive gives you that savings. For example, a preflux tank of 35,768 L (9450 gal) using flux at a rate of 360 gm/L ( 3 lbs/gal) would carry a standard inventory in that tank of 12,875 Kg (28,350 lbs) of zinc ammonium chloride. The same tank using the WIM Flux Additive would operate at 240 gm/L and would require 8,584 Kg ( 18,900 lbs) of flux. Aside from a better, less costly flux the WIM Flux Additive will help seal the surface of the steel completely. Zinc ammonium chloride dries with a crystalline pattern, wetted zinc ammonium chloride may be half film, half crystalline. The WIM Flux Additives dries to a simple film which protects and seals the fluxed steel. Because you have an improved fluxing action and a thinner lighter film the flux dries faster and the dryer the article the quieter it will enter the kettle. Less zinc is splattered about. The tight seal prevents excessive oxidation between the flux and kettle. Less iron is put into the kettle and dross formation is cut. Customers have experienced dross reductions as high as 15% when using this additive. ADDITION RATES Add 0.9 L for every 45 Kg bag of flux added to the preflux tan
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