6 pcs watercolor pens set wood color birch rod round head weasel's hair watercolor gouache pen factory wholesale

Brush Usage Knowledge:
Brush Pre-treatment
The user gently rolls the hair away from the tip of the pen with their fingers, then immerses the pen tip into about 30°C warm water for about 3 minutes to open up the tip. (When immersing a brush made of animal hair, hold the bristle with your fingers and gently pull the loose hairs in the direction of the bristle to prevent loose hairs from falling off when you first use the new pen.)

Brush Care
After use for non-oily painting, it must be immediately washed with clean water, and then the bristle head should be placed in a cool place with the direction of the hair standing up.
Dry place, do not touch other items when drying the hair to prevent deformation.
After using for oil painting, it must be cleaned with turpentine or a mild detergent, then rinsed with clean water. The bristle end should be allowed to dry in a shady and dry place, with the bristle end hanging to dry.
If the shape is deformed, dip a little bit of warm water, and smooth it with your fingertips, and it will return to its original shape.