NOKORODE® Soldering Paste Flux, Cold Weather, 8 oz, Composition: Zinc Chloride, Ammonium Chloride, Petrolatum, Petroleum Distillate, Tan/Gold To Black, Odor/Scent: Petroleum, >399 deg F Flash, 120 to 150 deg F Melting, Flammability: 1, 1.06 Specific Gravity, Applicable Materials: Copper, Zinc, Nickel