How to choose a quality brush?
Any brush consists of three main parts: the hair bundle, metal clip and wooden handle.
Metal clip. Metal clips quality brushes seamless, made of copper or brass, can be coated with chrome or nickel. Clip brush should be tightly filled with hairs and firmly cover the handle around the circumference. The hair bundle is glued to the handle to give the brush greater strength, but the adhesive should not reach the upper end of the clip. This leads to the need to use longer hairs so that the brush can be rotated to the desired degree during work.
A pen. Good quality pens can be made only from hardwood, such as beech, oak, birch. The handle and the metal holder are pressed together for greater strength.
Hair bundle. The hair bundle, the actual working part of the brush, is natural or synthetic hair of a certain shape and size. Universal brushes do not happen, each brush has its own purpose. Natural hair brushes are good for working with liquid paints, since the main criteria here are control over paint fluidity, the ability of the brush to form a fine tip and elasticity of the hair bundle. The soft texture of natural hair and its natural form perfectly meet these requirements.
Columns – the best hair for a brush, golden-brown coloring, with a sharp, as a needle, tip. It holds the paint well, its soft structure, conical shape and recoil make it ideal for all liquid paints and drawing details. In addition, the bundle of the core brush consists of hairs of different lengths, which, when the filled brush touches the surface, create a capillary flow – continuous, with an excellent consistency.
Weasel is an alternative to the hair column. The hair is red-brown in color, with a good sharp tip, good filling, but not as long as the column.
The squirrel’s hair is very thin, blue, black or brown. The tip of a squirrel hair brush resembles the tip of a rapier; it is not inferior to a column in controlling flowability, but is not as elastic in nature.
Light bovine hair. Bovine hair brushes are just as good for liquid paints due to their softness and elasticity, although they do not have such a sharp conical shape as columns or protein. Brushes for pastoh paints are evaluated only by one parameter: the thicker the paint, the harder the hair should be. The most suitable are brushes of bristle. Lightly diluted paints need a softer nap.
Badger hair has a conical shape and a dense upper part, near the end of the hair, but near the root section it is relatively thin, therefore the brush is very fluffy. It is considered ideal when working with moderately diluted oil paints. The best badger brushes have a white tip and a dark stripe in the middle.
Pig bristles – elastic and strong, the best brushes for oil and acrylic are made from it. The most important characteristic of the bristles is also its split tip – it contributes to a good fullness of the brush and an even application of paint on the surface of the substrate.
Synthetic, i.e. industrial manufacturing, hair and bristles are not similar to each other and behave differently. Nylon brushes are unsuitable for working with watercolors, but are excellent for moderately diluted acrylic, as they have the necessary strength and elasticity. Synthetic hair based on polyester has a different degree of elasticity. It can be assembled into bundles of various diameters to create a capillary action between the filaments of the fiber, thereby achieving good flow control. Well behaves with oil and acrylic.
Also produced brushes with a mixed composition of natural and synthetic hair. Brushes containing red sable hairs can be used for work with oil paints, acrylic and watercolor. Others on the contrary were made specifically for liquid acrylic and are too soft for oil paints.