SAMBIX specializes in plating metal parts used in general industry. We do plating treatments in zinc, nickel, tin as well as chemical conversion treatments.

Example with pipe configuration

Zero Chromium S treated item	Trivalent chromium treated item
Zero Chromium S’s principal ingredient, tannic acid, unites with the underlying iron of the un-plated area, forming an anti-rust film.	Trivalent chromium does not unite with the underlying iron of the un-plated area, so no anti-rust film forms.

After 4 days of outdoor exposure

No red rust development	Red rust development

8 hours after saline atomizing testing

Slight red rust development	Red rust development

Example with a housing configuration

After 9 days of outdoor exposure

Zero Chromium S treated item	Trivalent chromium treated item
No rust formation	The thinly plated area results at the time of trivalent chromium treatment when zinc is dissolved with a strong acid exposing the underlying iron, so rust forms.

Example with a product (rubber hose nozzle)

Item tested：straight and elbow type nipples of rubber hose nozzles
Test site：coast of the Sea of Japan
Test period：approximately　１year (February 10, 2006 to March 9, 2007)

	Zero Chromium S treated item	Trivalent chromium treated item
Straight nipple	Surface: no rust appears Interior: no rust appears on the un-plated areas	Surface: no rust appears Interior: rust appears on the un-plated area of the nozzle interior
Elbow nipple	Surface: no rust appears Interior: no rust appears on the un-plated areas	Surface: no rust appears Interior: rust appears on the un-plated area of the nozzle interior