Stainless Steel Eco-Friendly Passivation Solution

As a leading supplier of electroplating-related products, Alfa Chemistry provides a wide range of substrate surface treatment solutions. Our stainless steel passivation solution (product code: ACEP-PRE-008) is an innovative, eco-friendly product designed for the passivation of austenitic and duplex stainless steels. Utilizing cutting-edge catalytic technology, this upgraded formula significantly improves passivation speed and corrosion resistance, making it far superior to conventional solutions in the industry.

Technical Specifications

Key Advantages

• Efficiency & Energy Savings: Room-temperature operation + short processing time →reduced energy consumption and higher productivity.
• Eco-Friendly: Heavy-metal-free formulation aligns with green manufacturing standards.
• Long Service Life: Stable chemistry with 1+ year lifespan under normal use.
• Exceptional Salt Spray Resistance: Best performance: SUS300 series >1,500 hours (exceeds industry standards; excludes SUS303).

Applicable Materials

This product is suitable for a range of stainless steel grades, including:

• SUS301, SUS304, SUS316, SUS316L, and SUS321.
• Not suitable for SUS303 and SUS201 due to material-specific limitations.

Processing Guidelines

1. Direct Immersion: Use undiluted; soak cleaned parts for 2-15 minutes.

2. Rinsing:

Flush with flowing water post-passivation.

For complex geometries, neutralize with 2-5% NaOH to remove residues.

3. Container Requirements:

Permitted: Plastic or stainless steel.

Prohibited: Copper/iron containers (risk of contamination).

Recommended Process Flow

1. Degreasing → 2. Water rinse → 3. Acid pickling/activation (optional) → 4. Water rinse → 5. Passivation → 6. Flowing water rinse → 7. Neutralization (if needed) → 8. Final rinse → 9. Pure water wash → 10. Drying.

Use Effect Chart

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