Sky-Blue Color Sky- Blue Chemical Composition Co-Al-Zn Heat Resistance 1300 ℃ Product Physical and Chemical nature Powder and flour.no smell.hard to blend in water, acetone, ethanol. no blend in acids and bases. no danger of explosion.nontoxic.zero radioactivity.no flammability.no corrosiveness granularity（325 screen mesh ） ≤0.5% Water volatile（105℃） ≤0.5% Water-soluble salt ≤0.4% Color shade Consistent with type sample Light resistance 8th grade Climate resistance 8th grade Acid resistance 5rh grade Alkali resistance 5th grade Packing 25/30 KG/（drum）（outer iron drum and inner plastic drum） Service application Iron