There are many kinds of brush materials, and the earliest used is natural wool. The so-called natural wool refers to materials such as bristles and wool that are directly collected and used rather than artificially synthesized. The properties of many materials such as bristle, wool, and horse hair are also different, and they should be selected according to the customer's use environment.

1. Bristle
Bristle is taken from pigs. Generally speaking, a pig can only get hair once in its life. Pig bristles can be used to make a variety of brushes, the most common being bristle paint brushes. The bristles are similar to human hair, from thick to thin from the root to the end, which makes the bristle elastic; in addition, the ends of each hair are slightly forked; the common bristle color is brown (white) or black. The bristle has excellent durability and water resistance, and it is also anti-static, resistant to high temperature and acid and alkali.
2. Wool
Wool is relatively soft and slightly less elastic. After being made into a wool brush, it will not leave brush marks when used to apply paint. In addition to being made into paint brushes, wool is often used in brushes with short, soft bristles, such as cosmetic brushes.
3. Horsehair
The softness of horse hair is between bristle and wool, and horse tail hair is slightly harder than bristle hair; horse hair has good toughness and wear resistance, but it is not resistant to acid and alkali, and the brushes made of it are mostly used for polishing, cleaning, and dust removal and other related industries; brushes made of horse hair can withstand high temperatures of about 190 degrees Celsius.