Boron oil is commonly used as a coolant and lubricant in grinding machines to reduce heat generated during the grinding process and to improve the quality of the finished product. However, boron oil can become contaminated with metal shavings, dirt, and other particles generated during the grinding process, which can lead to reduced efficiency and damage to the machine.
To remove these contaminants from the boron oil, a paper filter is often used for filtration. The paper filter trap and remove the contaminants as the boron oil is passed through it. The paper used in these filters is typically highly absorbent and capable of capturing particles down to a certain micron size, depending on the grade of paper used. Weight of the paper is also important for paper selection.