Self-healing Cr⁶⁺ mechanism
Repairs micro-defects under service conditions automatically
Passivation · Process-engineered chemistry
UNIPASS-FE CHROMEIron Passivation – Chrome Based
40–60% Better Salt Spray Than Chrome-Free Alternatives
Cr⁶⁺ Sealer200+ h Salt SpraySelf-HealingPost-Phosphate
01 / Product brief
40–60% Better Salt Spray Than Chrome-Free Alternatives
Hexavalent chromium-based post-phosphate passivation sealer applied after iron or zinc phosphating to seal the porous phosphate crystal structure. Self-healing mechanism significantly extends corrosion resistance versus unsealed phosphate. Delivers the highest salt-spray performance achievable in a post-phosphate passivation step.
Cr⁶⁺ sealer self-repairs micro-defects under service conditions — a property that gives it a performance ceiling 40–60% above chrome-free alternatives in accelerated corrosion tests. Preferred where regulatory compliance allows its use.
02 / Performance
Key process advantages
Product-specific outcomes for production quality, operating control and line performance.
200+ hours salt spray
Highest post-phosphate passivation performance available
Universal post-phosphate sealer
Compatible with iron, zinc, and manganese phosphate bases
04 / Process position
Where it works in the line
Applied at Stage 6 (Passivate) after any phosphating step — Cr⁶⁺ sealer fills porous crystal structure for maximum corrosion protection in aggressive environments.
- 01
Degrease
Process stage
- 02
Rinse
Process stage
- 03
De-rust
Process stage
- 04
Rinse
Process stage
- 05
Condition
Process stage
- 06
Phosphate
Process stage
- 07
Passivate
Applied at Stage 6 (Passivate) after any phosphating step — Cr⁶⁺ sealer fills porous crystal structure for maximum corrosion protection in aggressive environments.
- 08
Rinse
Process stage
- 09
Dry
Process stage
05 / Applications
Specified for real production demands
Typical applications and substrate conditions for UNIPASS-FE CHROME.
Post-iron phosphating on appliance components requiring 200h+ salt spray
- Post-Iron Phosphate
Military and defence hardware with high corrosion specifications
- Post-Zinc Phosphate
Industrial components in aggressive chemical or coastal environments
- Defence Hardware
Post-zinc phosphating where maximum performance is required
- Industrial Components
Technical support
Validate UNIPASS-FE CHROME on your line.
Share your substrate, current bath, throughput and finishing system. Our process team will recommend a practical trial window.