Are your parts rusting despite being chrome-plated?
Are you looking for a surface treatment suitable for corrosive environments?
Let us introduce the surface treatments we can offer!


【The Key Issue】
Unlike other coatings, hard chrome plating naturally forms microcracks.
These cracks can become pathways for corrosion if not properly managed.


【Our Solutions】
1. Ultra-High-Hardness Chrome Plating “CHROAMOR”
Chroamor does not have cracks and can be hardened to HV1800 through heat treatment at temperatures ranging from 200°C to 600°C.
https://www.otec-kk.co.jp/english/surface/03.html

2. Double Layer Chrome Plating
Cracks are interrupted at the interface between layers.
Prevents penetration to the base material.

3.High Corrosion-Resistant Chrome Plating “CHROSTON"
Chroston has a special crystal structure that does not cause cracks or pinholes.

4. "Hybrid Chrome Plating – Superior Corrosion Resistance Beyond Ni-Cr Plating
Glass-based inorganic material is impregnated into the cracks of the chrome plating.
This compensates for the weak points of hard chrome plating.
https://www.otec-kk.co.jp/hard-chrome-plating/hybrid/

5.Fine Microcrack Plating “Chro-Fine”
Since the cracks are finer than in standard chrome plating, corrosion is dispersed and does not concentrate in a single point
https://www.otec-kk.co.jp/hard-chrome-plating/chrofine/

6. Dry Buffing Treatment
Cracks are flattened and sealed. Wet buffing is effective, but dry buffing is superior.

7.Increased Plating Thickness
This buys time before corrosion reaches the base metal.

8.Dual-layer plating with nickel / Ni-Cr plating
This prevents cracks from reaching the base metal.

Please visit our website to see examples of how we’ve solved these challenges!
https://otec-kk.info/problem-solution/

【Storage Methods】How to Extend the Life of Plated Products?
https://ja.nc-net.or.jp/company/22467/product/detail/243950/



－－－－－－－☆
Otec Co., Ltd. is a specialist in hard chrome plating, with over 60 years of history.
We provide fully integrated production — from roll manufacturing, plating, to finishing.

Otec Co., Ltd.
3-1-40 Imafukuhigashi, Joto-ku, Osaka City, Osaka Prefecture
536-0002 Japan
Tel ：81-6-6939-4591　・　Fax ：81-6-6939-1503

Website: https://www.otec-kk.co.jp/english/
Technical site: https://otec-kk.info/
Blog: https://blog.otec-kk.co.jp/