Surface Treatment Selection for Corrosion Resistance

Surface Treatment Selection Guide

Choosing the right surface treatment is essential for ensuring corrosion resistance and service life of precision hardware components.

Treatment Comparison

TreatmentSalt Spray HoursThicknessBest ForZinc Plating96-240h5-15?mGeneral purposeNickel Plating200-500h10-25?mDecorative + functionalDacromet480-1000h4-8?mAutomotive fastenersGeomet720-1500h5-10?mHigh-corrosion environments

Recommendations

For automotive fasteners, Dacromet or Geomet coating is preferred due to hydrogen embrittlement-free processing and superior corrosion resistance. For decorative components, electroless nickel plating provides both aesthetics and protection.