Toray Synthetic Paintbrush MIR Ref. 131 No. 00-24

MIR Toray Round Brush Ref.131 — synthetic precision for acrylic

Round brush from the MIR Ref.131 series, with synthetic Toray fiber, long wooden handle and cupronickel ferrule. Made by Pinturas MIR (L'Hospitalet de Llobregat) since 1933. Toray fiber is a synthetic polyamide filament developed in Japan in the 1970s, designed to imitate the structure of natural hair.

What is it used for?

Acrylic painting: this is the use the manufacturer specifically labels for this Ref.131.
Round-shape work: continuous line, outline and detail, as opposed to the flat stroke of a flat-shaped brush.
Workshops that need a wide range of thicknesses in a single series: 15 sizes, from #00 to #24.

Why choose the Ref.131?

Toray fiber: a 1970s Japanese development specifically designed to imitate the behavior of natural hair; according to the fiber's technical data sheet published by lineo1911.com, it is also more resistant to solvents and cleaning detergents than natural hair.
Long handle: the series variant with a long handle, as opposed to the short handle of the Ref.130 — the manufacturer describes the handle as "balanced for versatility of uses".
Cupronickel ferrule and manufacturing by Pinturas MIR, a Spanish manufacturer of brushes and artistic paints since 1933.
Full range of 15 sizes in the same reference, from #00 (fine detail) to #24 (broad stroke).

Presentation and storage

Presentation: individual brush, 15 sizes — #00, 0, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24.
Supplied with a factory plastic sleeve that protects the hair and ferrule during transport and storage prior to first use.
Service life: the manufacturer does not publish a figure or an estimated number of uses.

The limits, stated plainly

The manufacturer labels the Ref.131 only for acrylic painting. If you're looking for watercolor or oil, that application is documented for Toray fiber in general in the technical data sheet published by lineo1911.com, a brush manufacturer (not by MIR nor for this specific Ref., and not by the fiber manufacturer itself either, for which no public data sheet has been located) — ask us before assuming it works the same way with your technique.
The factory plastic sleeve is not a storage case: it is transport and warehouse protection until first use. After that point, store it like any synthetic fiber brush.
The manufacturer does not publish a cleaning or care protocol between uses, so there is no official MIR guideline beyond the usual care of a synthetic brush.

Frequently asked questions

Is the hair synthetic or natural?

Synthetic: Toray fiber, a polyamide filament. It is neither natural hair nor a generic nylon imitation.

What exactly is Toray fiber?

A synthetic polyamide filament developed in Japan in the mid-1970s, designed to imitate the structure of natural hair.

What technique is this specific Ref.131 designed for?

The manufacturer labels it for acrylic painting. Toray fiber in general is also used in watercolor and oil, according to the fiber's technical data sheet published by lineo1911.com (a brush manufacturer, not the fiber manufacturer), but that is not a specific MIR label for this Ref.

How many sizes are there and which one should I choose?

15 real sizes, from #00 (very fine detail) to #24 (broad stroke). If you're unsure between two consecutive numbers, write to us and we'll guide you.

Does it hold up well to brush-cleaning solvents?

According to the fiber's technical data sheet published by lineo1911.com (a brush manufacturer, not the fiber manufacturer), it is more resistant to solvents and cleaning detergents than natural hair. There are no specific figures published by MIR.

How does it differ from the Ref.130, which we also sell?

Same Toray hair. The Ref.131 has a long handle; the Ref.130 has a short handle and the manufacturer catalogs it for watercolor and decorative art.

Does it come with a protector, and does it need to be removed before use?

Yes, a factory plastic sleeve for the hair and ferrule. It is transport and warehouse protection: remove it before first use.

Does it need a safety data sheet or hazard pictograms?

No. It is a finished article (handle, ferrule and fiber), not a substance or chemical mixture, so it is not subject to a safety data sheet or pictograms.

Have any questions? Write to us on WhatsApp, visit innovart.art or email us at info@innovart.art and we will advise you.