Winsor & Newton Designers Gouache - Primary Red, 14 ml tube

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Item #:00801-3742
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Winsor & Newton Designers Gouache - Primary Red, 14 ml tube and swatch

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Product Details

Description:
Designers Gouache
Color:
Primary Red
Size:
14 ml (.47 oz)
Format:
Tube
No.
524
Series:
1
Mfg #:
0605524

Shipping Note - Due to manufacturer distribution restrictions, Winsor & Newton products cannot be shipped to addresses outside of North America.

Colors on Monitors -

Due to differences in users’ monitors, the colors presented are an approximation of the true color.

Reviews

Pigment Information

This color contains the following pigments:

PR170-Naphthol Red


Pigment Name

PR170-Naphthol Red

Pigment Type

organic, naphthol AS

Chemical Formula

C26H22N4O4

Properties

Pigment PR170 is a bright deep red with bluish undertones. It has an average drying time. It has two crystaline forms that differ significantly in opacity. The more transparent form (F5RK) tends to be more bluish and is less lightfast.

Permanence

The lightfastness and weatherfastness of Pigment PR170 varies, depending on the application and the crystaline form. The opaque form (F3RK) has very good lightfastness, and is more weather resistant. The transparent form (F5RK) has lightfastness that is considered acceptable in pure applications, but it fades more in tints. Neither form is considered suitable for exterior use.

Toxicity

Naphthol Reds are not considered toxic. They may cause eye, skin, or respiratory irritation. Contact with dry pigment should be avoided.

History

Naphthol pigments are actually dyes that are "laked" to form pigments. First developed by the German chemical company Hoechst A.G. before World War I, their use in artist paints began in the 1920s. Pigment Red PR170 is a Naphthol AS pigment, chemically related to the diarylide yellow pigments. The Naphthol AS pigments comprise a range of reds. They are used in plastics, textiles, and printing inks.


Safety Data Sheet

UPC Code: 50958054

ASIN #: B000OL5KLE