Sub Source specializes in nondestructive testing, coatings and metal finishing.  We offer a variety of additional services to consolidate the entire scope of your project within our facility.  

nondestructive testing

Non-Destructive Testing

Rely on our NADCAP-accredited nondestructive testing to analyze your materials for cracks, weld verification, voids and other defects.

  • Liquid Penetrant Inspection
  • Magnetic Particle (Magnaflux)
  • Nital Etch

View Nondestructive Testing


With multiple lines and batch capabilities, Sub Source will meet your unique size, shape and OEM specifications.

  • Dry Film Lubricants
  • Powder Coating
  • Chemical Agent Resistant Coating (CARC) Paint
  • Alkyds, Epoxies & Polyurethanes
  • Military Spec (MIL-SPEC) Paint

View All Coatings

Ultrasonic Cleaning

Metal Finishing

We offer a wide-range of chemical processes for multiple types of steel and aluminum.

  • Fine Grain Zinc
  • Heavy Grain Zinc
  • Manganese Phosphate
  • Iron Phosphate
  • Black Oxide
  • Passivation
  • Chem Film (Conversion Coating)
  • Ultra Sonic Cleaning
  • Vapor Degreasing
  • Pickle & Oil
  • Grit Blasting

View All Metal Finishing

Additional Services

Sub Source provides several additional and value-added services to streamline your secondary service needs. If you are looking for a service that is not provided on the website, please give us a call to see if we can accommodate your requirements.

Uses a heat-cleaning oven to remove materials such as oil, paint, plastic and varnish from metal products

  • Steam Cleaning
  • Pressure Washing
  • Stress Relieving
  • Brazing
  • TIG
  • MIG

Determines if a part is clean and free from contaminants

We offer local and surrounding area deliveries, including Chicago.

one-stop source

Let our dedicated team of experts coordinate all of your critical and secondary process needs. With our NADCAP accreditation and ISO certification, you can trust us to complete your project with the highest quality standards.