Hank Metal Rust Preventive Oil BS-400 Series
This series covers a range of products from short-term rust prevention to long-term preservation rust prevention, suitable for various scenarios such as inter-process rust prevention, intermediate warehouse rust prevention, export ocean shipping rust prevention, and precision parts preservation rust prevention.
Short-term Rust Preventive Oil BS-401
Formulated through a special process from film-forming agents, oil-soluble corrosion inhibitors, and low-viscosity high-flash-point refined mineral oil, it is a thin-film long-acting rust preventive oil featuring low viscosity, high flash point, good dehydration and displacement properties, good salt spray and humid heat resistance, long rust prevention period, easy cleaning, and no adverse effect on subsequent processing (such as stamping, drawing, etc.).
Recommended uses: Suitable for inter-process rust prevention and applications with low rust prevention requirements.
Usage: Can be applied by immersion, brushing, or spraying, with a coverage of approximately 40-50 square meters per liter. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Reddish-brown transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥180 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Water displacement | Complete displacement | GB 4879-85 B22 |
| Corrosion test (steel/cast iron/brass) | 3 days, grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 4 days, Grade 0 | GB/T 2361-80 |
| Preservation anti-rust test (steel, cast iron, brass) | Over three months | Visual inspection |
Anti-rust water BS-402
Formulated from multiple corrosion inhibitors and additives in proportion; non-toxic, free of sodium nitrite, and provides excellent corrosion inhibition for steel and copper parts.
Usage:
Preservation anti-rust: Take the concentrate and package it together with polyethylene film, composite paper, neutral wax paper, or sodium benzoate anti-rust paper for preservation; the anti-rust effect can last over one year.
Intermediate storage anti-rust: Dilute 10%~15% of the concentrate and spray it onto mechanical parts stored in intermediate storage; repeat the spray about once a week.
Inter-process rust prevention: Soak mechanical parts in a 4%~10% diluted solution; rust protection can last 2~3 months.
Technical specifications:
| Item | Specification |
|---|---|
| Appearance | Homogeneous liquid |
| pH value | 8~9.5 |
| Corrosion test (55±2°C, 7 days; concentrate SH/T0080) | Steel/cast iron/brass: Pass |
| Damp heat test (49±1°C, RH≥95%; concentrate GB/T2631)* | Steel/cast iron/brass: 30 days Grade 0 |
| Single-piece rust prevention test (35±1°C, RH≥95%, 48 hours; GB6144-85) | Steel/cast iron: Pass |
| Lamination anti-rust test (35±1°C, RH≥95%, 24 hours; GB6144-85) | Steel/cast iron: Pass |
*After anti-rust treatment, the test piece shall be sealed with polyethylene film packaging.
Long-acting anti-rust oil BS-403
It is formulated through a special process from film-forming agents, oil-soluble corrosion inhibitors, and low-viscosity, high-flash-point refined mineral oil. It is a thin-film long-acting anti-rust oil featuring low viscosity, high flash point, good dehydration and displacement properties, good salt spray and humid heat resistance, long anti-rust period, easy cleaning, and no impact on subsequent processing.
Recommended use: Suitable for anti-rust protection of steel plates, cast iron parts, copper, aluminum, galvanized sheets (cut sections), etc.
Usage: Can be applied by immersion, brushing, or spraying, with a coverage of approximately 40-50 square meters per liter. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Reddish-brown transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥180 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Water displacement | Complete displacement | GB 4879-85 B22 |
| Corrosion test (steel/cast iron/brass) | 7 days Grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 30 days Grade 0 | GB/T 2361-80 |
| Preservation anti-rust test (steel, cast iron, brass) | More than one and a half years | Visual inspection |
Hard film anti-rust oil BS-404
It is formulated through a special process from film-forming agents, oil-soluble corrosion inhibitors, modified wax film, and special solvents. It is a hard-film long-acting anti-rust oil featuring low viscosity, high flash point, good dehydration and displacement properties, good salt spray and humid heat resistance, and a long anti-rust period.
Recommended uses: Suitable for newly machined guide surfaces and other rust-prone areas, automotive chassis, and other applications with high anti-rust requirements.
Directions for use: Can be applied by immersion, brushing, or spraying. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Reddish-brown transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥180 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Corrosion test (steel/cast iron/brass) | 60 days, Grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 120 days, Grade 0 | GB/T 2361-80 |
| Preservation anti-rust test (steel, cast iron, brass) | Over three years | Visual inspection |
Electroplating Anti-Rust Oil BS-405
Formulated from film-forming agents, oil-soluble corrosion inhibitors, and petroleum solvents through a special process. It is a low-oil-film, high anti-rust performance rust preventive oil with salt spray resistance up to 150 hours, the highest among similar products.
Recommended uses: Suitable for long-term preservation and rust prevention of various precision machinery and hardware products, especially for export products shipped by sea with high salt spray resistance requirements. Also suitable for rust prevention of steel, cast iron, copper, aluminum, zinc, and other materials.
Directions for use: Can be applied by dip coating, brushing, or spraying, with a coverage of approximately 50 square meters per liter. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Light yellow transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥42 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Salt Spray Test | 120-150 hours | ZX-60A |
| Corrosion test (steel/cast iron/brass) | 7 days Grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 30 days Grade 0 | GB/T 2361-80 |
| Preservation Anti-Rust Test (Indoor Packaged Preservation) | 1.5 years without rust | Visual inspection |
Thin-Layer Anti-Rust Oil BS-406
Formulated through a special process from film-forming agents, oil-soluble corrosion inhibitors, and petroleum solvents. It is a low-oil-film, high anti-rust performance anti-rust oil, with salt spray test results of up to 100 hours.
Recommended Uses: Particularly suitable for export products shipped by sea where high salt spray resistance is required; suitable for preservation and anti-rust protection of precision parts requiring a thin oil film on the surface (such as tools, measuring instruments, and small parts); also suitable for anti-rust protection of steel, cast iron, copper, aluminum, zinc, and other materials.
Directions for use: Can be applied by dip coating, brushing, or spraying, with a coverage of approximately 50 square meters per liter. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Reddish-brown transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥42 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Salt Spray Test | 100 hours | ZX-60A |
| Corrosion test (steel/cast iron/brass) | 7 days Grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 30 days Grade 0 | GB/T 2361-80 |
| Preservation anti-rust test (steel, cast iron, brass) | 1.5 years without rust | Visual inspection |
Thin-Layer Anti-Rust Oil BS-407
Formulated with film-forming agents, oil-soluble corrosion inhibitors, and petroleum solvents through a special process, it is a low-oil-film, high-rust-prevention type rust preventive oil.
Recommended use: Highly suitable for the preservation and rust prevention of precision parts requiring a thin oil film on the surface (such as tools, measuring tools, and small parts), and also suitable for the rust prevention of steel, cast iron, copper, aluminum, zinc, and other materials.
Directions for use: Can be applied by dip coating, brushing, or spraying, with a coverage of approximately 50 square meters per liter. The workpiece surface should be clean before oiling, and avoid mixing water or other foreign matter into the oil.
Technical specifications:
| Item | Specification | Test method |
|---|---|---|
| Appearance | Reddish-brown transparent oily liquid | Visual inspection |
| Flash point (closed cup) °C | ≥42 | GB 261-77 |
| Sprayability 5±1℃ | Continuous oil film | GB 4879-85 B21 |
| Water displacement | Complete displacement | GB 4879-85 B22 |
| Corrosion test (steel/cast iron/brass) | 7 days Grade 0 | SY 2752-77S |
| Damp heat test (steel/cast iron/brass) | 30 days Grade 0 | GB/T 2361-80 |
| Preservation anti-rust test (steel, cast iron, brass) | 1.5 years without rust | Visual inspection |
