Handmade watercolor. Made of pigments and Gillot's Paint Medium.

When used with cement only for interior use. Do not treat with hydrochloric acid.

Color: red, CI: PR 166.20730

Chemical description: CAS No. 3905-19-9 in Carol Gillot´s watercolor medium.

Lightfastness: Concentrated: 8, Medium: 7, Thinned: 6-7 (1 is poor, 8 is best).

Stable in Acid: 5, Alkali: 5, Lime: 5 (1 is poor, 5 is best).