High-strength black phosphating dry Drywall Screws

Introduction

High-Strength Black Phosphating Dry is an advanced surface treatment technology designed to provide superior corrosion resistance, enhanced adhesion, and improved wear resistance for ferrous and non-ferrous metals. This dry phosphating process forms a dense, black phosphate coating that bonds tightly to metal substrates, offering long-term protection in harsh environments. Ideal for automotive, aerospace, industrial machinery, and military applications, this innovative solution ensures durability while maintaining environmental compliance.

Key Features & Benefits

1. **Exceptional Corrosion Resistance** – The black phosphate layer acts as a robust barrier against oxidation, salt spray, and chemical exposure, significantly extending component lifespan.

2. **Enhanced Adhesion** – Provides an excellent base for subsequent coatings (paint, powder coating, or lubrication), ensuring strong bonding and reduced delamination risks.

3. **Wear & Friction Reduction** – The crystalline phosphate structure minimizes surface friction, improving performance in moving parts.

4. **High-Strength Substrate Compatibility** – Effective on high-carbon steels, cast iron, and alloy metals without compromising structural integrity.

5. **Dry Process Efficiency** – Eliminates the need for wet rinsing, reducing water usage, waste, and energy consumption compared to traditional phosphating methods.

6. **Uniform Coating Thickness** – Ensures consistent coverage even on complex geometries via controlled application techniques.

Technical Specifications

- Coating Weight: 1.5–3.5 g/m²

- Salt Spray Resistance: 500+ hours (ASTM B117)

- Operating Temperature Range: -40°C to 200°C

- Standards Compliance: MIL-DTL-16232, ASTM D5725

Applications

- Automotive: Engine components, brake systems, fasteners.

- Aerospace: Landing gear, hydraulic systems.

- Industrial: Bearings, tools, hydraulic cylinders.

- Military/Defense: Firearms, heavy machinery.

Environmental & Safety Advantages

Free from heavy metals (e.g., zinc, nickel) and volatile organic compounds (VOCs), this process aligns with RoHS and REACH regulations. The dry method reduces sludge waste by up to 60% versus conventional phosphating.

Conclusion

High-Strength Black Phosphating Dry delivers unmatched corrosion protection, adhesion, and sustainability, making it the optimal choice for high-performance metal components in demanding industries.