Filbert paintbrush
Encyclopedia
The Filbert Paintbrush is one used in artwork. It has a thick ferrule
Ferrule
A ferrule is a name for types of metal objects, generally used for fastening, joining, or reinforcement...

 and hairs that are, on average, medium to long hairs in the shape of an oval
Oval
An oval is any curve resembling an egg or an ellipse, such as a Cassini oval. The term does not have a precise mathematical definition except in one area oval , but it may also refer to:* A sporting arena of oval shape** a cricket field...

. Filberts are particularly effective in blending work, usually of a figurative nature. Many artists agree that natural fibers/fibres work best for filberts because the hairs stick together better when wet.

Hairs that can be used are sable, mongoose
Mongoose
Mongoose are a family of 33 living species of small carnivorans from southern Eurasia and mainland Africa. Four additional species from Madagascar in the subfamily Galidiinae, which were previously classified in this family, are also referred to as "mongooses" or "mongoose-like"...

, bristle, badger
Badger
Badgers are short-legged omnivores in the weasel family, Mustelidae. There are nine species of badger, in three subfamilies : Melinae , Mellivorinae , and Taxideinae...

 and synthetic
Synthetic fiber
Synthetic fibers are the result of extensive research by scientists to improve on naturally occurring animal and plant fibers. In general, synthetic fibers are created by forcing, usually through extrusion, fiber forming materials through holes into the air, forming a thread...

. Media most likely to have paint applied to by a filbert
Filbert
Corylus maxima, the Filbert, is a species of hazel native to southeastern Europe and southwestern Asia, from the Balkans to Ordu in Turkey....

 are oil
Oil paint
Oil paint is a type of slow-drying paint that consists of particles of pigment suspended in a drying oil, commonly linseed oil. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and varnish may be added to increase the glossiness of the...

, acrylic
Acrylic paint
Acrylic paint is fast drying paint containing pigment suspension in acrylic polymer emulsion. Acrylic paints can be diluted with water, but become water-resistant when dry...

 and decorative surfaces. This brush is mainly used on The Joy of Painting
The Joy of Painting
The Joy of Painting was an American television show hosted by painter Bob Ross that taught its viewers basic techniques for landscape oil painting. Although Bob Ross could complete a painting in half an hour, the intent of the show was not to teach viewers speed painting. Rather, he intended for...

as one of the main brushes.

History

The filbert paintbrush derives from the shape it resembles, that of a hazelnut with its namesake. This word comes from the Old French filbert, coming from noix de (nut of) Philbert. Philbert
Philbert
Philbert may refer to* Madame Philbert , a participant in the Affair of the Poisons, executed for murdering her first husband* Phillippe Rebille Philbert , flautist, court musician to Louis XIV of France, second husband of Madame Philbert...

was a saint, (who died in 684), whereby the ripening of the nut in August coincides with his feast day.
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