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Conversion Coating / Surface capability
Hexavalent Chromatizing
Established conversion protection with excellent corrosion performance.
Discuss this finishRPI / HEXAVALENT-CHROMATIZING
CONTROLLED SURFACE SYSTEM
Overview
A surface engineered around the part.
A chemically formed protective film that enhances corrosion resistance and provides an exceptionally reliable base for subsequent paint systems without altering part dimensions.
Our process planning considers alloy series, machining condition, dimensional sensitivity, racking position, visual zones and service environment before production begins in our Rajkot plant.
Technical Parameters
Process Specifications
Coating Thickness< 1 Micron (Zero Build-up)
Process StandardMIL-DTL-5541 Class 1A & 3
Film ColorIridescent Golden Yellow
Salt Spray Rating168+ Hours (ASTM B117)
Electrical ContactLow Contact Impedance
01
Electrical conductivity
02
Corrosion resistance
03
Paint / Primer adhesion
04
Low contact resistance
05
Zero dimensional change
06
Chemical protection
Process ArchitectureControlled from substrate
Controlled from substrate
to sealed surface.
Parameters are specifically adapted for hexavalent chromatizing, part geometry and approved quality requirements.
01
Alkaline degreasing & de-smut
02
Chemical conversion bath immersion
03
Controlled film thickness growth
04
Low-temp warm air drying (< 65°C)
05
Conductivity & salt spray testing
Target Applications
Designed for performance.
Hexavalent Chromatizing is specifically developed around the functional and visual demands of these key component types.
01
Electrical components
02
Industrial enclosures
03
Automotive parts
04