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Zinc-Free Soldering Flux
Our ZC-Free™ soldering fluxes are all VOC-Free and contain NO zinc, a heavy metal that is monitored in certain municipalities/regions.
| Superior Flux Number |
Description | Rec. Base Metals |
Rec. Temp Ranges | Specs. | MSDS | Spec. Sheet |
| No. 30 | Organic Acid Soldering Flux | Copper, brass, some ferrous metals. | 95-315°C 200-600°F |
O-F-506C, Type 1, Form B |  |
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| No. 68 | Organic Acid Soldering Flux | Copper, brass, ferrous metals | 95-315°C 200-600°F |
O-F-506C, Type 1, Form B | |
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| No. 465 | High Activity Soldering Flux | Copper, Brass, Stainless Steel | 260-425°C 500-800°F | O-F-506C, Type 1, Form B | |
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| No. 515 | Organic Acid Soldering Flux | Copper, brass, ferrous metals | 105-315°C 220-600°F |
O-F-506C, Type 1, Form B | |
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All Zinc-Free soldering fluxes are RoHS compliant.
Superior SuperSafe® No. 30 soldering flux is an excellent general purpose flux that contains no Zinc Chloride and is a non-hazardous product. Learn more about the entire family of Superior No. 30 SuperSafe Soldering Flux.
Superior No. 68 soldering flux contains no Zinc Chloride or Ammonium Chloride. This ZC-Free® flux is a versatile organic acid flux that is both VOC-Free and non-hazardous.
Superior No. 465 soldering flux is a Zinc-Free, Ammonia-Free, metal halide flux. It is one of the strongest tinning fluxes on the market and can solder stainless steel, as well as certain difficult-to-solder metals that can not soldered with even a Zinc Chloride-based flux.
Superior No. 515 is an Inorganic Acid flux that provides a self-neutralizing activator that can be used for a variety of industrial applications where zinc-chloride fluxes are not wanted for safety or over-activity reasons.