Functions and Uses：
1. It is used in the post-treatment of passivation.  A coating with superior corrosion resistance can be generated on the surface after dipping.
2. Excellent thermal resistance and simultaneously no significant loss of the corrosion resistance.
3. With the transparent appearance it is used for sealing after the blue or white passivation of trivalent chromium.
4. The process is non-toxic and can be used as the closing process of all kinds of electrodeposits.

Operating Components：
DF-55S                    200~300mL/L
Time                         10~30s
Temperature           10-50℃
PH                             8.0-9.0