Additional post-etching services

Stamping process

Forming and finishing

We offer manual and semi-automatic precision forming using standard, modular and custom form tools.

Where possible, bend lines can be incorporated into etched components, removing the need for hard form tooling.

In-house spot welding is available for formed, 3-D components which require a permanent connection, such as nickel silver shielding cans.

Electropolishing and passivation
TONGJIN Etching offers two post-etching corrosion protection processes.

Passivation: Passivation purifies the component surface and forms a micro-coating of metal oxide to protect it from corrosion. This process will not change the dimensions or overall appearance of the base metal.

Electropolishing: Electropolishing produces a brighter, smoother surface finish, reducing surface roughness by up to 50%. By reducing micro-crevices on the metal surface components are up to 30 times more corrosion resistant than those which are passivated, making it ideal for medical instruments.

Heat treatment
For components that require increased surface hardness, temperature resistance, ductility or strength, we offer heat treatment by way of hardening, tempering, annealing and normalising.

Surface finishing
Materials can be specified with a non-reflective, dull, bright, mirrored or grit finish to improve component form or function.

Available post-process surface finishes include:

Vapour blasting
Chemical blacking
Chromium nitride
Bonding and brazing

Technical overview

MATERIALS Stainless Steel,Copper, Aluminum,Nickel

Customer Reviews

I am extremely impressed with the precision...
Swapnil from United StatesWednesday, Jan 26, 2019
"I am extremely impressed with the precision and quality of the chemical etching performed by your team. The intricate designs on our metal components were etched flawlessly, exceeding our expectations. Thank you for delivering such a high-quality product."
Your chemical etching service has significantly improved the durability...
Sarah from United KingdomWednesday, Jan 20, 2020
"Your chemical etching service has significantly improved the durability and functionality of our products. The etched patterns not only enhance the aesthetics but also provide excellent grip and tactile feel. Our customers are thrilled with the results, and we couldn't be happier with your exceptional craftsmanship."
We have been relying on your chemical etching expertise for several projects...
Eduardo from ItalyWednesday, Mar 16, 2022
"We have been relying on your chemical etching expertise for several projects, and each time, you have consistently delivered outstanding results. Your attention to detail, quick turnaround time, and excellent customer service make you our preferred choice. Your commitment to excellence is commendable."
has given our brand a unique edge in the market...
Taner from TurkeyFriday, April 26, 2023
"The chemical etching performed by your team has given our brand a unique edge in the market. The intricate logos and designs etched onto our products have attracted significant attention and set us apart from our competitors. We appreciate your professionalism and skill."

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