A water-soluble, bright-finish, mildly alkaline blackening agent.
Advantages
● Good surface uniformity on blackened workpieces;
● Strong adhesion and long salt spray resistance;
● Safe, environmentally friendly, non-toxic, and non-volatile.
| Model | PR507 |
| Density (20°C),/ml | 1.02-1.07 |
| pH Value | 8.0-9.5 |
| Concentration (%) | 8-15 |
| Operating Temperature (°C) | 350-500 |
| Application Range | Bright type, suitable for small-sized, hard-to-blacken products (e.g., washers, anchors). |
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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