How to choose and maintain paint brushes?

The oil brush consists of three parts: the holder, the metal hoop and the bristles. The key to the quality of oil brush is the pen hair. When buying, check whether the pen hair is even and natural, and should not be trimmed. The brush hair sold in the store is usually glued together, with the hand twist should not be spread out after the shape, at the same time to check whether the metal hoop is firm, there is a transverse ripple better. Finally, it depends on whether the brush is comfortable in the hand. Oil brushes can extend their service life if kept properly. Brush should be cleaned in time after use, so as not to dry the paint on the brush hair, when not used for a long time, should be thoroughly cleaned and sealed with paper. (1) If you do not use it for a short time, you can wipe off the remaining paint on the brush with cloth or paper, and then soak it in water after cleaning with turpentine. (2) Use turpentine to clean the used paintbrush. Two wide mouth bottles containing turpentine (if sauce bottle) can be prepared, and one can be used for preliminary cleaning to remove the remaining paint on the paintbrush; The other is used for a second cleaning. (3) The method of thorough cleaning. ① After cleaning with turpentine, dip the pen in water or warm water and rub it on the soap (note: do not use boiling water, because it will damage the metal hoop of the brush). (2) Squeeze with your fingers or rotate the hair in the palm of your hand. Repeat the above action until the soap turns white. ④ After rinsing with water, straighten out the hair of the pen, wrap the pen with a slightly harder paper and store it for later use. When cleaning the brush, use moderate force, otherwise it is easy to hurt the brush hair. The soap liquid used must be weak alkali soap (there is special brush cleaning soap abroad), in order to prevent the hardening of the pen hair. Can use silky hair scour, cannot use paint thinness absolutely, it can make pen hair because lose oil qualitative and embrittlement. Short brushes are usually thrown away, but if you heat a metal hoop over a flame and pull the brush out a bit without changing the shape of the brush, you can extend the life of the brush, which is economical and fun.