Special 7 Precision Instrument Greases 250 g
Packaging specifications：250 g
Order Hotline：+86 18624936708
Special 7 applicable temperature range: -70°C to 120°C
Special 7 and 75 Precision Instrument Greases
Overview:
Sinopec Special 7 and 75 Precision Instrument Greases are refined using synthetic precision instrument oil thickened with a specific thickener.
Features:
◎ Excellent lubricity, ensuring proper lubrication of precision instruments
◎ Excellent rust prevention and protection, protecting precision instruments from corrosion
◎ Low friction, ensuring smooth operation of precision instruments
◎ Excellent low-temperature starting performance, ensuring normal startup of precision instruments at low temperatures
Technical Specifications:
◎ Special 7 complies with the following specifications: SH 0456-92
◎ Special 75 complies with the following specifications: Q/SH303 229-2004
Applications:
◎ Suitable for use as a lubricant and protective agent on bearings and friction components of precision instruments.
◎ Suitable for lubrication and protection of household appliances
◎ Special 7 applicable temperature range: -70°C to 120°C;
◎ Special 75 applicable temperature range: -70°C to 80°C
Typical Data:
| Item | Special No. 7, Special No. 75 Precision Instrument Grease | |
| Special No. 7 | Special No. 75 | |
| Drop Point, °C | 194 | 175 |
| Oil Separation (50°C, 48h), % (m/m) | 1.37 | 3.5 |
| Evaporation Rate (120°C), % (m/m) | 1.44 | 1.55 |
| Moisture, % (m/m) | None | None |
| Mechanical Impurities, % (m/m) | None | None |
Corrosion (50°C, 48h, 40# Steel, H62 Brass, LY11 Hard Aluminum Alloy) | Pass | Pass |
| Similar Viscosity (-50°C, 10s-1), Pa.s | 2047 | 800 |
| Free Alkali (NaOH), % (m/m) | 0.03 | 0.03 |
Foreign Products with Equivalent Performance:
◎ In terms of performance, Special No. 7 precision instrument grease is equivalent to the Russian OKB-122-7.
Special No. 75 precision instrument grease is equivalent to the Russian OKB-122-75.
Precautions:
◎ Before use, the lubricated area must be cleaned thoroughly.
◎ During storage, transportation, and use, prevent contamination from moisture and dust.
Packaging:
◎ 250g plastic box or packaging as per customer's request.
