D182 Metallic Red/Rouge Métallique - PR146 Naphthol Red, Mica PW20 (inorganic, aluminum silicate)

Series: A

Lightfast: **

Pigment 1: PR146 Naphthol Red

History unknown

Pigment name: PR146 Naphthol Red

Pigment Type: n/a

Chemical Name: n/a

Properties: n/a

Permanence: Naphthol Reds vary widely in lightfastness. This Naphthol Red (PR146) has fair to poor permanence and always fades in tints. It is not suitable for outdoor use.

Toxicity: Naphthol Reds are not considered toxic. They may cause eye, skin, or respiratory irritation. Should avoid contact with dry pigment.

Alternate Names: Naphthol, Naphthol Bordeaux, Naphthol Carbamide, Naphthol Carmine, Permanent Carmine, Permanent Red.

Pigment 2: Mica PW20

Mica has been used as a pigment since prehistoric times.

Pigment name: PW20 Mica

Pigment Type: Inorganic

Chemical Name: Aluminum silicate

Properties: An off-white pigment with complex reflective effects, mica is often used with transparent pigments to create mixed pigments with interference and pearlescent effects.

Permanence: Mica is permanent and lightfast.

Toxicity: Although it is entirely non-toxic and not bio-reactive, fine particles may be irritating: This is of concern primarily for those exposed occupationally to dry mica powder. Breathing mica particles may cause lung fibrosis and pneumoconiosis.

Alternate Names: n/a