Dimethyl is a component. Silicone oil refers to lubricants whose components are mainly silicon. It should be a general term. If divided by chemical composition, there are many kinds. The main component of our professional lubricants for lubricating Rubik’s Cube is also dimethyl silicon oil. It is said that silicone oil is the most suitable lubricating product for ABS engineering plastics. Generally speaking, it is colorless, odorless, non-toxic, heat-resistant, insulating, insoluble in water, and safe for humans.
1. Light method. On a clear day, use a screwdriver to lift up the simethicone and make a 45-degree angle with the horizontal. Contrast with sunlight and observe the condition of oil droplets. Under sunlight, it can be clearly seen that there is no wear debris in the oil as good, and it can continue to work. If there are too many wear debris, replace it.
2. Hand twist method. Twist the simethicone oil between the thumb and the index finger and rub it repeatedly. A better quality hand feels lubricity, less abrasion, and no friction. If you feel a greater friction such as sand between your fingers, it indicates There are too many impurities in the oil, it can no longer be used and should be replaced.
3. Oil drop trace method. Take a clean white filter paper and place a few drops of oil on the filter paper. After the simethicone leaks, if there is black powder on the surface and it feels astringent to the touch, it means that there are a lot of impurities in the oil. It is of good quality, should be free of powder, dry and smooth to the touch, with yellow marks.
4. Oil flow observation method. Take two measuring cups, one of which contains the simethicone to be checked, and the other empty on the table. Lift the measuring cup full of oil 30-40 cm away from the table and tilt it to let the oil slowly flow into the empty cup Here, observe its flow, the good quality should be slender, uniform, and continuous. If the oil flow is sudden and slow, and sometimes large chunks flow down, it is said to have deteriorated.
When the dimethyl silicone oil is deteriorated, if it is not replaced in time, it will accelerate the wear of the parts and affect the service life, so corresponding methods can be used for testing.