LW-99Nickel-free and Fluoride-free

Medium Temperature Sealing Additive  is a kind of high concentration colorless or light amber 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 nickle 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.

Features :

1)Environmental Protection:Free of 

nickel, fluoride and heavy metal;

2)Performance:high corrosion resistance and strong light resistance;

3)Odorless:No smell;

4)Innovation:LW-99 is the initiate in China and opens a new era of nickel-free and fluoride-free sealing products;

5)Stability:The repeated simulation 

environment aging tests show that the aluminum profiles with LW-99 sealing have strong corrosion resistance and light resistance.