Surface & Heat Treament

Zetwerk provides high-quality surface treatment and heat treatment processes. Common surface treatment processes applied to finished components include anodizing, electroless nickel plating, chrome plating, spray painting, powder coating, e-coating etc. Common heat treatment processes include annealing, tempering, quenching etc.
Zetwerk is ISO 9001:2015 and AS9100D certified. Our surface and heat treatment facilities are NADCAP approved and IATF 16949:2016 certified.

  • Oil & GasAutomotive
  • Power
  • Automotive
  • Aerospace
  • Medical

Zetwerk provides a complete range of surface finishing treatments for all or portions of each metal component’s surfaces. Surface finishing is quite common and is required to prevent surface corrosion and/or improve the appearance of the part.

Some surface finishes and surface treatments provide enhanced electrical or mechanical properties that add to the overall functionality of the metal component. Metal components requirements often involve cosmetic surface finishes and these finishes can involve highly cosmetic surface requirements. When these high surface-quality finishes are required there are additional costs involved in their application and subsequent protective packaging.

Surface Finishing Options, a partial list

There are many surface treatments and finishes available and it’s not uncommon for metal parts and components to require a combination of surface treatments such as surface plating for enhanced corrosion resistance and then painting (powder or wet spray, etc.). Whatever the requirement, Zetwerk can provide surface treatments to meet every application and requirement. Here is a partial listing of surface finishing options available.

Surface Improvement

  • Abrasive blasting
  • Buffing
  • Burnishing
  • Chemical-Mechanical-Planarization (CMP)
  • Electropolishing
  • Grinding
  • Industrial etching
  • Linishing - grinding or belt sanding
  • Magnetic field-assisted finishing
  • Sandblasting
  • Shot peening
  • Tumbling
  • Vibratory finishing

Surface Cleaning

  • Aluminium oxide cleaning
  • Ultrasonic cleaning
  • Vapor degreasing

Chemical Processing & Plating

  • Electrochemical etch marking
  • Ink jet part marking
  • Chromic acid anodizing/ sulfuric acid anodizing
  • Boric acid/ sulfuric acid anodizing
  • Sulfuric acid anodizing
  • Electroless nickel plating + w/ Teflon-like “slick coating”
  • Chemical conversion coating
  • Cadmium plating/ nickel cadmium plating
  • Zinc plating w/ blue and yellow passivation
  • Manganese phosphate w/ solid film lubricant coating
  • De-ionized water, nickel acetate, dichromate, dye and clear sealing process
  • Aluminium etching
  • Hard anodizing
  • Chrome plating
  • Zinc nickel plating
  • Hard anodizing with Teflon impregnation


Hand polishing of components for plated-like appearance


Powder coating


  • Wet spray paint
  • Primer
  • Semi-gloss and high-gloss paint
  • Abrasion-resistant paint
  • Over-coat application
  • Masking solutions
  • Solid film lubricant

Heat Treatment

  • Vacuum heat treatment
  • Solutionizing
  • Age hardening
  • Atmospheric heat treatment
  • Normalizing
  • Stress-relieving
  • Induction hardening

Companies we've
built for

Our ability to not let size, timelines, material, geography, and complexity of projects limit us has garnered us a clientele worth mentioning.

Work with us!

  • India: +91 96060 46750 USA: +1 818 486 1522 Mexico: +52 81 1022 5423
  • +91 96060 46750
  • +91 96060 46750
  • Oriental Towers No 461, 1st Floor &
    2nd Floor, 4th Sector, 17th Cross,
    HSR Layout Bengaluru, India - 560102.