Description
This is a professional watercolor tube with Antwerp Blue pigment. The series number is 1, the chemical description is Alkali ferrocyanide, the colour index name is PB 27, the colour index number is 77510, the permanence rating is A(iv), the ASTM lightfastness rating is I, and the transparency/opacity is T.
Series number: 1
Chemical Description: Alkali ferriferrocyanide
Colour index name: PB 27
Colour index number: 77510
Permanence rating: A(iv)
ASTM Lightfastness Rating: I
Transparency/
Opacity: T
The colours are chosen according to mass tone (colour from tube), undertone (bias of colour when in a thin film), colour strength, relative opacity and the character of the pigment in water colour, ie. granulating, staining or even wash. The resultant colour spectrum ensures the largest number of colours can be mixed from the range. The optimum brilliance of every colour in the Artists' Water Colour range is unparalleled by any other water colour. Remarkably, this brilliance is combined with high permanence.