Rack Zinc

Professional Plating takes pride in providing the finest Zinc Plating in the industry. We also take pride in getting it done rapidly to meet your most demanding schedules.

Rack Zinc Plating Processes:

Hex-free Clear chromate
Pro-Dura Clear - RoHS Compliant Extended life Clear Chromate
Black chromate
Yellow chromate

Rack Line Standards:

Capable of handling parts 110” long, 60” high by 30” wide
Excellent for long, large quantity runs
Hoist systems provide great flexibility
Three different chromates can be run at the same time, providing greater efficiencies

Quality Assurance:

Strict adherence to Statistical Process Control (SPC)
Constantly monitored for consistent high quality
Coatings to ASTM B633 Standards

ASTM B 633 Types, Classifications, and Service Conditions:

Type I -- As plated without supplementary treatment
Type II -- With colored conversion coatings
Type III -- With colorless chromate conversion coatings

Classification Number	Minimum Thickness	Service Condition
Fe/Zn 25	25 um .001"	SC 4 (very severe) – Exposure to harsh conditions such as moisture, cleaners, saline solutions, and extreme wear.
Fe/Zn 12	12 um .00048"	SC 3 (severe) - Exposure to condensation, perspiration, infrequent rain, and cleaners
Fe/Zn 8	8 um .00032"	SC 2 (moderate) – Exposure to dry indoor atmospheres but subject to occasional condensation, wear, or abrasion
Fe/Zn 5	5 um .0002"	SC 1 (mild) - Exposure to indoor atmospheres with rare condensation and minimum wear or abrasion