Oil painting brush maintenance:
oil painting brush oil painting brush can prolong its service life if properly kept. Brush should be cleaned in time after use, so as not to dry the paint on the brush hair. When it is not used for a long time, it should be thoroughly cleaned and sealed with paper.
(1) if it is not used for a short time, wipe off the paint left on the brush with cloth or paper first, then wash it with turpentine and soak it in water.
(2) clean the used brush with turpentine oil, and prepare two jars (such as jam jar) containing pine oil, one for preliminary cleaning to remove the paint left on the brush; the other is used for the second cleaning.
(3) thorough cleaning method
 ① after cleaning with turpentine, dip the pen in clean water or warm water to rub on the soap (note: Boiling water cannot be used, because boiling water damages the metal hoop of the brush).
② squeeze with your fingers or rollerball pen hair in your heart.
 ③ repeat the above actions until the soap foam turns white.
④ After rinsing with clean water, straighten out the pen hair, and store the pencil bag with a slightly harder note for later use. When cleaning the brush, use moderate force, otherwise it will easily hurt the brush hair. The soap solution used must be weak alkali soap (there is a special brush cleaning soap abroad) to prevent the brush hair from hardening. Detergent for silk and wool can be used, and paint thinner must not be used, which will make pen hair brittle due to oil loss. The shortened oil painting brush is usually discarded. If the metal hoop is heated on the flame and the pen hair is pulled out a little without changing the shape of the pen hair, the service life of the brush can be prolonged, wash the pen clean every time and put it in the pen curtain of the roll pen.

After-sales process: