aluminium alloy medium/hot sealing additive/agent

LW-99 Nickel-free and Fluoride-free Medium Temperature Sealing Additive is a kind of colorless or light amber transparent liquid which has excellent sealing effect for aluminum oxidation film. It does not contain heavy metals, which not only will solve the problems caused by heavy metal in waste water treatment process, but also can avoid aluminum surface greenish phenomenon which caused by the oxide film absorbing nickel salt during the sealing period. LW-99 is applicable to the transparent film, polishing, electrolytic coloring film sealing and it has the advantages of simple operation, environmental protection, water-saving, free of treatment to fluoride and nickel irons in waste water processing which can be cost-saving.

LW-10 Medium Temperature Sealing Additive is a reddish brown to brown liquid which is for aluminum profiles oxidation film sealing treatment, the sealing quality is stable and of wide application range, the profile surface texture is superior after sealing treatment.

LW-50 Medium Temperature Sealing Additive is a light green powder which is for aluminum profiles oxidation film sealing treatment.