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Pass 40 Chromium-Based Passivating Chemical
Chromium-Based Sealing Chemical for Superior Salt Spray Life
Pass 40 is an engineered chromium-based passivating concentrate applied in the final rinse stage after phosphating. It penetrates microscopic phosphate pores, pacifying reactive bare metal points and providing a 2- to 10-fold increase in corrosion and humidity resistance.
Key Operational & Quality Advantages:
- Provides a dramatic 2x to 10x boost in salt spray and humidity endurance
- Effectively seals crystalline pores against corrosive chloride ions
- Economical chemical consumption per square meter of metal processed
Technical Data Sheet (TDS) Specifications
Operating limits and titration standards for industrial plant immersion & spray lines.
| Product Code / Trade Name | Pass 40 (Pass 40 Chromium-Based Passivating Chemical) |
| Recommended Concentration | 0.2% - 0.5% v/v in clean water |
| Operating Bath Temperature | Ambient to 40°C |
| Immersion / Contact Time | 30 - 60 Seconds |
| pH Range | 3.5 - 5.0 |
| Application Method | Final Rinse Immersion & Spray Stage |
| Standard Industrial Packaging | 35 Kg HDPE Carboys |
| Quality Compliance & Directives | ISO 9001:2015 • RoHS Directive 2011/65/EU • REACH Compliant |
- Maintain final rinse tank cleanliness with regular overflow fresh water top-up.
Complementary Pretreatment Chemistries
Chemclean Y-25 Water-Soluble Alkaline Degreaser
Chemclean Y-25 is an alkaline water-soluble chemical designed to work very effectively on heavy to light grease, dirt, and oil on ferrous metal and their alloys at working temperature 60-65°C.
Chemclean Y-20 Non-Caustic Alkali Base Cleaner
Chemclean Y-20 is an alkali base non-caustic cleaner. It is highly effective for removing grease, oil, and dirt from any metal. It is also an optimized hot process chemical.
Chemclean Y-30 Low-Temperature Heavy Alkaline Cleaner
Chemclean Y-30 is a heavy alkaline cleaner operating with lower temperature requirements. It removes oil, grease, etc. rapidly from all ferrous metals, saving energy.