R&D

The innovative technologies of Chunwootech

What we do at our corporate R&D center in the fields of ferrous and non-ferrous metals we studied metal surface treatment technologies to develop products that could be used across industries while we lead the commercialization and capitalization of surface treatment agents.
Metal surface treatment normally involves pickling and passivating the surface of a heat-treated or welded steel pipe. Such processes use strong acid, which is a toxic material. Therefore, it can be detrimental to the environment. A large amount of harmful material is released to pollute the air and threaten the safety of workers.

At Chunwoo Tech, we do not use such toxic materials. We developed a treatment agent that is safe to use as we lay passivation film layers on the surface of stainless steel.

Our passivation filming technology does not cause rust or corrosion, with a lower defect rate, good productivity, and international patent registration.

The technologies and development background of Chunwoo Tech

Competitors

Pickling and passivation coating of heat-treated or welded pipe surfaces

→ Detrimental to the environment due to the use of strong acid, which is a toxic material.

→ A large volume of NOx is released.

→ Causes air pollution and threatens the safety of workers.

Chunwootech

1. A surface treatment agent that is free of toxic materials

→ We developed our own treatment agent that is safe and free of toxic gas.

→ Passivate-coating of the surface of steel (stainless steel) pipe.

2. The passivation based on this technology is free of rust or corrosion.

3. Non-ferrous surface treatment business in pipe mills and shipyards.

4. Currently holds 60% market share in the steel pipe surface treatment market.

5. Low product defect rate and high productivity; international patent registration

Product line up and technology applications of the corporate R&D center

CW-R2 (surface treatment agent)

Developed by Chunwoo Tech, CW-R2 is an environmentally-friendly surface treatment agent.
Compared to the existing treatment agents, our product does not contain toxic materials, free of toxic substances and gases, providing a solution for environment-related complaints.
Reduced the previous eight-phase process to four phases, shortening lead time and increasing output.
Secured consistency in quality by standardizing work processes.

	CW-R2
Environment	Free of heavy metals and other harmful materials
Safe	NOx-free
Productivity	Higher productivity due to reduced reaction time.
Quality	Certified by shipping companies.
Cost	Reduction of the cost due to the streamlining of the process.
Application	Spools, tanks, on-deck, and heat exchangers of vessels

CW-R3 (surface treatment agent)

CW-R3 of Chunwoo Tech is a neutralized agent. It is a neutralized version of CW-R2, which is acidic.
The neutral CW-R3 is used is characterized by the superb stability of the surface of steel pipes passivated by it.

	CW-R3
Characteristics	Functions as a neutralizing agent.
Quality	Certified by shipping companies.
Application	Used in surface treatment concomitantly with CW-R2.

CW-FNOX (surface treatment agent)

A treatment agent of Chunwoo Tech that is used when dipping a steel pipe.
No harmful gases emitted from the dipping process = Environmentally-friendly

	CW-FNOX
Environment	No heavy metals or harmful materials
Safe	NOx-free
Productivity	Higher productivity due to the streamlining of the process into four steps.
Quality	Certified by shipping companies.
Work conditions	Better work conditions with new equipment.
Application	Surface treatment, painting, and packaging are taken care of in one step.

R&D