Williamsburg Oil Colour - Ultramarine Blue (150ml)

CI Name: PB29 Chemical Description: Polysulfide of Sodium Alumino-SilicateLight Fastness: I Opacity: Transparent

Each colour is ground to enhance the beauty and luminosity specific to that particular pigment. Some colours will feel slightly gritty; others extremely smooth. Pigments are ground in pure, premium, alkali-refined and PH- balanced linseed oil and made in batches no larger than five gallons at a time. This provides total control over the product, much like the late nineteenth-century French colour makers. All the materials are hand measured, and every ounce of paint is scrutinized. The paint is packed in 37 ml and 150 ml non-reactive aluminum tubes. Larger quantities of paint are packed in aluminium cans using only the purest materials.