India
Our formulated blackening chemicals are used in the process of blackening iron & steel by simple immersion. The process blackens a wide range of alloy steels and imparts moderate corrosion resistance to them. Coating with blackening chemicals withstands from 2 to 6 hours in 20% salt spray, which is sufficient for most indoor uses. For outdoor application, additional protection is provided by oiling, waxing or lacquering the work after blackening. The thickness of black oxide coating ranges from 0.06 to 0.12 micron.
The sequential steps of blackening process are as following:
Degreasing ( Digosa 30 )
Water Rinse ( Water )
De Rusting ( Detroit SC / VAM )
Water Rinse ( Water )
Neutralising ( Digosa 30 )
Water Rinse
Blackodising ( 120 - 1300C )
Blackodising ( 138 - 1420C )
Water Rinse
Chromate Sealing ( Pasio-44 )
Drying / Sealing with cutting oil.
Incepted in the year 1997, Vivek Industries, has established itself as an eminent manufacturers, exporters and suppliers of wide range of metal surface pre-treatment chemicals, electroplating chemicals and rust preventive oils. Under the able guidance of our mentor, Mr. Shivaji Patil we have carved a niche in this competitive industry.
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