Clockwork oil MBP-12
Clockwork oil
MBP-12
GOST 7935-74
Product description:
Oil MBP-12 is a general purpose clockwork oil. It is produced by mixing bone oil with dioctylsebacinate or vacuum distillation fraction of oils.
Application:
It is used to lubricate balance sheet supports and pallets of wristwatches, pocket watches, alarms and similar parts of other devices. Operating temperature range: from -10°C to +50°C.
Characteristics of the oil:
|
Appearance |
uniform transparent liquid yellow to light brown |
|
Kinematic viscosity, at 50°С, mm2/s, within |
19-24 |
|
The ratio of kinematic viscosity at 20°С to kinematic viscosity at 50°С, not more than |
3,2 |
|
Acid number, mg KON/g, not more than |
0,15 |
|
Evaporation, %, not more than |
0,15 |
|
Oxidation viscosity increase, %, not more than |
2,0 |
|
The edge wetting angle on steel, degree, not less than |
15 |
|
Pour point, °C, not higher than |
-24 |
|
Corrosion activity on steel and brass |
Endures |
|
Water content |
Absence |
|
Content of mechanical impurities |
Absence |
It is allowed to increase the acid number to 0.4 ml KON per 1 gram of oil after one year from the moment of oil production within the guarantee storage period.
Warranty period of storage is 2 years from the date of manufacture.
Storage conditions: at a temperature not exceeding 25°C and relative humidity not more than 70% in places protected from direct sunlight, heating systems, atmospheric precipitation and aggressive environments.
Be careful, fat-based watch oil production: MC-3, MHP-6, IBE-12 was discontinued in 1999. The shelf life of these oils is 2 years. That is why these oils on the lubricants market are either fake or hopelessly outdated. Their use can lead to corrosion of parts and polymerization in friction units.