black oxide coating service

Black Oxide Coating Service

Black Oxide coating services by GRIT Manufacturing converts the iron of the surface to a naturally occurring black iron oxide with adding virtually zero thickness to your part.

Black Oxide Coating Service

Faster Service

fast black oxide service 24 hours

We compete on speed to deliver a black oxide plating in a lightening fast 24 hour service!

Blacker Service

dark black oxide plating service quality

Our black coating service delivers the deepest and darkest black finish in the industry... that won't rub off!

Smarter Service

smart black oxide coating service

We solve problems for our customers and understand the science of black oxide to provide the best solution in the industry.

black oxide service process

What do we do to your parts?

For starters - we know how important your parts are and we will take good care of them and service them with great care.  Gentle handling and thoughtful packaging are a part of the process.


How do we turn them black?  The process is fairly gentle and adds virtually zero thickness to your part.  In a nutshell, all we are doing is cleaning them off, rinsing the soap off, dunking them in a heated salt bath that converts the iron into a naturally occurring black iron oxide, then rinsing and adding a final supplementary finish.


See that's not so bad, right?


The (5) basic steps to our service includes:

  1. Clean
  2. Rinse
  3. Black Oxide
  4. Rinse
  5. Rust Preventative (supplementary finish)

Within each of the process steps listed above a disciplined set of controls exist around times, temperatures, concentrations and other important factors that we monitor to ensure that your parts have the same great finish every single time.


Our service and process was designed by our owner who has over 20 years of experience designing highly technical and capable processes for the Aerospace and Automotive industries.  His most recent claim to fame was receiving a patent for a manufacturing process to fabricate a component for the GE GEnx turbofan for airplanes!


We hope that service summary helps!


If you would like to try our service, we would love to offer a FREE sample for a small batch.  We are firm believers in EARNING Trust.


Please contact us if you are interested, we would love to have a shot at providing you with a high quality black oxide service!

Black Oxide Finish Coating Examples

Black Oxide Finish Coating Examples