- NOKORODE® Paste Flux, Regular, 1 lb Capacity, Can Container, Composition: Zinc Chloride, Ammonium Chloride, Petrolatum, Tan, Petroleum Odor/Scent, >400 deg F Flash Point, 120 to 150 deg F Melting, Flammability: 1, 1.06 Specific Gravity, Applicable Materials: Solder Alloys