The matte type residual heat blackening agent is a water-soluble, mildly alkaline blackening agent that is non-toxic and environmentally friendly. After blackening, the workpiece has a smooth, uniform appearance with a deep black matte finish, making it easy to apply oil in subsequent processes.
Advantages
● Good surface uniformity on blackened workpieces;
● Strong adhesion and long salt spray resistance;
● Safe, environmentally friendly, non-toxic, and non-volatile.
| Model | PR520 |
| Density (20°C) /ml | 1.0-1.07 |
| pH Value | 8.0-9.5 |
| Concentration (%) | 10-15 |
| Operating Temperature (°C) | 380-550 |
| Application Range | Matte type, widely applicable, strong anti-contamination ability. |
Products that have passed factory inspection should be used within two years. If the product is not used within this period, it must be re-inspected and pass the quality test before use.
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