25% off $99 plus Free Shipping on orders $99 or more!* Use code CDFY Expires at Midnight (CDT)! Learn More>

Art Room Aid - Fund an Art Project - Learn More

Browse more:

« See more Lefranc & Bourgeois Flashe Vinyl Paint

00697-3152 — Carmine Red

Lefranc & Bourgeois extra-fine vinyl-based paint dries evenly with intense coverage to a uniform, velvety matte, opaque finish. Highly pigmented, Flashe may be diluted with water to create a range of results, from highly opaque to a transparent effect.

Carmine Red

This color contains the following pigments:

PR170—Naphthol Red
PR12—Permanent Bordeaux

PR170—Naphthol Red

Pigment Type

organic, naphthol AS

Chemical Name

n/a

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.

Alternate Names

Naphthal, Naphthol Bordeaux, Naphthol Carbamide, Naphthol Carmine, Permanent Carmine, Naphthol Crimson, Permanent Red, Permanent Red F3RK (more opaque), Permanent Red F5RK (more transparent).

^ back to top

PR12—Permanent Bordeaux

Pigment Type

organic, monoazo

Chemical Name

n/a

Chemical Formula

n/a

Properties

Permanent Bordeaux has excellent tinting strength.

Permanence

Permanent Bordeaux is reported to have good lightfastness.

Toxicity

n/a

History

Permanent Bordeaux (PR12) was discovered by H. Wagner in 1921. It has been used in many printing inks, plastics colorants, textile paints, and industrial paints. It is widely manufactured.