---
title: Chromate-Free | one to ONE Holdings
description: No hexavalent chromium. Why toxic Cr(VI) is being phased out globally.
image: https://www.o2oh.com/hubfs/o2Oh_50mm-2.jpg
---

Perfecting imperfections with one to ONE

# Glossary

### GLOSSARYTerms A-Z

- [Glossary](https://www.o2oh.com/glossary)
- [ALL](https://www.o2oh.com/glossary?val=all)
- [A～G](https://www.o2oh.com/glossary?val=a_g)
- [H～N](https://www.o2oh.com/glossary?val=h_n)
- [O～U](https://www.o2oh.com/glossary?val=o_u)
- [V～Z](https://www.o2oh.com/glossary?val=v_z)
- [Numbers ・ Symbols](https://www.o2oh.com/glossary?val=0_9)

# Chromate-Free

Chromate-free is defined as "Hot-dip [zinc](https://www.o2oh.com/glossary/zinc)-coated steel sheets and coils," meaning that the chemical conversion coating does not contain hexavalent chromium  (Japanese Industrial Standard (JIS) G3302)".

"Chromate Treatment," on the other hand, is a chemical conversion process performed using a solution containing hexavalent chromic acid. For metals, the method forms a protective oxide film, thereby significantly enhancing corrosion resistance. Conversely, its application to plastics induces the formation of polar groups on the surface, significantly improving adhesion and receptivity to paints and adhesives.

Hexavalent chromium was widely adopted due to its low cost and high [corrosion resistance](https://www.o2oh.com/glossary/corrosion-resistance). However, its compounds are highly toxic. Due to serious concerns about direct contact, indirect harm to the human body through environmental issues such as soil contamination, chromate treatment is being progressively phased out.

### RELATED WORDS

---

- [Catena-X](https://www.o2oh.com/glossary/catena-x)
- [Cyber-Physical Security](https://www.o2oh.com/glossary/cyber-physical-security)
- [Cognitive Ergonomics](https://www.o2oh.com/glossary/cognitive-ergonomics)
- [Cloud Lock-in](https://www.o2oh.com/glossary/cloud-lock-in)
- [Capital Expenditure (CAPEX)](https://www.o2oh.com/glossary/capital-expenditure-capex)
- [Cyber Attacks](https://www.o2oh.com/glossary/cyber-attacks)
- [Cobots](https://www.o2oh.com/glossary/cobots)
- [Cascade Recycling](https://www.o2oh.com/glossary/cascade-recycling)
- [CBAM](https://www.o2oh.com/glossary/cbam)
- [Closed-Loop Supply Chain (CLSC)](https://www.o2oh.com/glossary/closed-loop-supply-chain-clsc)
- [Carbon Leakage](https://www.o2oh.com/glossary/carbon-leakage)
- [Contamination](https://www.o2oh.com/glossary/contamination)
- [Closed-Loop Recycling](https://www.o2oh.com/glossary/closed-loop-recycling)
- [CSRD](https://www.o2oh.com/glossary/csrd)
- [Corporate Governance](https://www.o2oh.com/glossary/corporate-governance)
- [CFP](https://www.o2oh.com/glossary/cfp)
- [Corrosion Resistance](https://www.o2oh.com/glossary/corrosion-resistance)
- [Continuous Casting](https://www.o2oh.com/glossary/continuous-casting)
- [Cradle to Grave](https://www.o2oh.com/glossary/cradle-to-grave)
- [Cradle to Gate](https://www.o2oh.com/glossary/cradle-to-gate)
- [Chain of Custody (CoC)](https://www.o2oh.com/glossary/chain-of-custody-coc)
- [Cutoff Criteria](https://www.o2oh.com/glossary/cutoff-criteria)
- [Cathode](https://www.o2oh.com/glossary/cathode)
- [Coal Gassification](https://www.o2oh.com/glossary/coal-gassification)
- [Cyber-Physical Systems (CPS)](https://www.o2oh.com/glossary/cyber-physical-systems-cps)
- [Changeover Time](https://www.o2oh.com/glossary/changeover-time)
- [Coal](https://www.o2oh.com/glossary/coal)
- [Cathodic Protection](https://www.o2oh.com/glossary/cathodic-protection)
- [CAD (Computer-Aided Design)](https://www.o2oh.com/glossary/cad-computer-aided-design)
- [CAM (Computer-Aided Manufacturing)](https://www.o2oh.com/glossary/cam-computer-aided-manufacturing)
- [Coke](https://www.o2oh.com/glossary/coke)
- [Carbon Footprint](https://www.o2oh.com/glossary/carbon-footprint)
- [CCS](https://www.o2oh.com/glossary/ccs)
- [CCUS](https://www.o2oh.com/glossary/ccus)
- [Clean Technology Manufacturing (CTM)](https://www.o2oh.com/glossary/clean-technology-manufacturing-ctm)

Copyright © one to ONE Holdings Pte. Ltd. All Rights Reserved.

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