Trivalent Chromium Post Dip For Barrel Applications

POST-DIPs FT 190 is a specially formulated liquid concentrate improving aspect, brightness and corrosion resistance of trivalent passivation films on Zinc and Zinc alloy deposits.

It is particularly suitable for black trivalent passivation by barrel or rack plating. If the control of coefficient of friction is required, it is also possible to apply a FINIGARD top-coat to improve the corrosion resistance.

When applied as a post treatment, parts processed with POSTDIP FT-190 will exhibit a glossy black finish and will provide greater than 120 hours to white corrosion when tested according to DIN EN ISO 9227 or ASTM B117.

For best results, POSTDIP FT-190 should be applied to a LANTHANE or FINIDIP trivalent black passivate and COVENTYA zinc or zinc alloy deposit.

Features & Benefits

  • Hexavalent chromium-free
  • Superior corrosion protection
  • Attractive, glossy, uniform black cast
  • Exceptional bath life
  • Excellent heat resistance
  • Reduced drip marks when combined with POST-DIP SURFACT 10/20
  • Very predictable replenishment schedules

Fields of application

  • Automotive industry
  • Building industry
  • Fastener industry

POST DIP LINE

The POSTDIP Line includes hexavalent chromium-free protective processes. They improve aspect, brightness, colour depth and corrosion resistance of black, blue and iridescent passivation films based on trivalent chromium, zinc and zinc alloys deposits.

POST DIP processes have exceptional heat resistance and bath life. They are easy to tailor to unique operating characteristics of any given installation, or piece of operating equipment.

Effective with all LANTHANE and FINIDIP trivalent black passivate films, POST DIP processes can be adapted for both barrel and rack system.

Fields of application

  • Automotive industry
  • Building industry
  • Fastener industry
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