This process produces a smooth glossy bluish black finish on M.S., ferrous metals and its alloys. Coating thickness obtained is 2 to 3 microns thus it does not alter the dimensions of parts. This type of finish is very decorative and when sealed in our de-watering type (Rust Preventive) it offers long term protection against corrosion and oxidation.

PROCESS : Sr.No. Stage Chemical Concentration Temp. Time (mins.)

Type of tank

1 Degrease METOCHEM – MS-1 5%-7% (w/v) 60-90C 5-15 M.S.

2 Rinse WATER - R.T. 1 M.S./Plastic

3 Derust METOCHEM RR-1 25% (v/v) R.T. 10-20 Plastic

4 Rinse WATER - R.T. 1 M.S./Plastic

5 Bluing METOCHEM FBL 100% (w/v) 300C 5-7 M.S.

6 Rinse WATER - R.T. 1 M.S./Plastic 7 Sealing RPO(DW) - R.T. 3-5

Category:
  • It Produces Smooth And Glossy Bluish Black On Ms And Its Alloys.
  • Sealed With Dw Rust Preventive Oil. 
  • Coating Thickness – 2-3 Microns
concentration 100% W/v
temperature 300 Degree Celsius
dip time 3-7 Mins
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+91 98100 80811

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