Surface Finishing & Protective Coatings
Corrosion Protection
Enhanced Durability
Premium Finish
Superior Adhesion
Consistent Quality
On-Time Delivery
Professional surface finishing solutions for sheet metal components, CNC machined parts, enclosures, brackets and OEM assemblies. KRN Industries provides a range of finishing options to improve corrosion resistance, durability, appearance and functional performance.
01. ZINC PLATING
Corrosion-resistant zinc coating for fasteners, sheet metal components and industrial parts.
Process Flow:
Surface Preparation → Cleaning / Degreasing → Pickling → Zinc Plating → Rinsing → Drying → Inspection
Applications:
Fasteners | Brackets | Sheet Metal Parts | Machined Components | Assemblies
02. TIN PLATING
Provides excellent conductivity, solderability and corrosion protection.
Process Flow:
Surface Preparation → Cleaning / Degreasing → Activation → Tin Plating → Passivation → Rinsing → Drying → Inspection
Applications:
Copper Busbars | Electrical Parts | Connectors | Terminals | Assemblies
03. SILVER PLATING
High electrical conductivity and excellent contact performance for specialized applications.
Process Flow:
Surface Preparation → Cleaning / Degreasing → Activation → Silver Plating → Passivation → Rinsing → Drying → Inspection
Applications:
Electrical Contacts | Connectors | Relays | Switch Parts | Terminals
04. MANGANESE PHOSPHATING
Improves corrosion resistance, wear resistance and paint adhesion.
Process Flow:
Surface Preparation → Cleaning / Degreasing → Pickling → Phosphating (Manganese) → Rinsing → Passivation → Drying → Inspection
Applications:
Steel Components | Automotive Parts | Fasteners | Industrial Components
05. POWDER COATING
Durable, uniform and eco-friendly coating with a wide range of colors and textures.
Process Flow:
Surface Preparation → Pre-treatment / Converting / Conversion Coating → Rinsing → Curing → Cooling → Inspection
Applications:
Sheet Metal Enclosures | Panels | Brackets | Equipment | Cabinets | Architectural Parts
06. PAINTING
Industrial painting solutions for protection, appearance and application-specific requirements.
Process Flow:
Surface Preparation → Priming → Painting → Inspection
Applications:
Industrial Equipment | Structures | Machines | Fabricated Components | Assemblies
07. ANODIZING
Enhances aluminium surface hardness, corrosion resistance and appearance.
Process Flow:
Surface Preparation → Etching → Anodizing → Rinsing → Colouring (Optional) → Sealing → Inspection
Applications:
Aluminium Housings | Machine Components | Profiles | Enclosures | Electrical Components
08. PASSIVATION
Enhances corrosion resistance of stainless steel by removing free iron and forming a thin, protective oxide layer.
Process Flow:
Cleaning / Degreasing → Rinsing → Passivation → Rinsing → Drying → Inspection
Applications:
Stainless Steel Parts | Fasteners | Medical Components | Food Equipment | Marine Components | Architectural Hardware
OUR SURFACE FINISHING CAPABILITIES
We provide surface treatment and finishing solutions based on the material, application, environment and required appearance of your components.
AVAILABLE FINISHING OPTIONS
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Powder Coating
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Zinc Plating
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Electro-Nickel Plating
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Electroless Nickel Plating (ENP)
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Anodizing
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Tin Plating
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Passivation
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Deburring & Surface Preparation
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Brushing & Polishing
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Custom Surface Finishing
MATERIALS WE WELD
Material Typical Applications
Mild Steel Powder Coating, Zinc Plating, Nickel Plating
Stainless Steel Passivation, Polishing, Brushing
Aluminium Anodizing, Powder Coating
Copper Tin Plating, Polishing
Brass Nickel Plating, Polishing
CNC Machined Anodizing, ENP, Plating, Polishing
Parts
SURFACE FINISHING APPLICATIONS
ELECTRICAL & ELECTRONICS
Enclosures, panels, busbars, brackets and conductive components.
AUTOMOTIVE
Brackets, mounts, machined components and fabricated parts.
INDUSTRIAL MACHINERY
Machine components, frames, covers and fabricated assemblies.
HVAC
Panels, brackets, housings and fabricated HVAC components.
TELECOM
Equipment housings, cabinets, brackets and mounting components.
EV COMPONENTS
Enclosures, brackets, busbars and precision components.
CNC MACHINED PARTS
Turning and milling components requiring corrosion protection, wear resistance or improved appearance.
CUSTOM OEM COMPONENTS
Made-to-drawing components with customer-specified surface finishes.