OPEN Nickel Azo Yellow
'The "Azo" (aye - zoe) is short for Azomethine, Nickel Azo pigment produces a transparent, brownish yellow at full strength but with enormous range. Excellent for creating rich amber glazes or extending further for high-pitched yellows. Tint with white for a bright, sunshine yellow.
Pigment Classification: Synthetic Organic
Color Index Name: PY150
Color Index Number: 12764
Chemical Description: Nickel Complex Azo
Lightfastness Rating: 1
Munsell Notation Listing: Hue 3.5 Value 4.7 Chroma 9
Gloss Average: 43.2
Viscosity Range: 4000-15000 CPS
CIE L*a*b* Values: L*52.06 a*12.26 b*40.34
Tint Strength: 91.7
OPEN Acrylics are a slow-drying paint with a slightly softer consistency than our Heavy Body paints. The increased working time of these colors expands their range to include more traditional techniques once only possible with oils. Thick applications can dry extremely slowly, so we recommend artists only use OPEN Colors thinly (< 1 mm). Drying time can also be accelerated by mixing OPEN with faster-drying acrylics like our Fluid and Heavy Body colors. The slow-drying capability of OPEN Acrylics also makes the suitable for some printmaking techniques.
Because OPEN Acrylics dry slowly, painters who cover their palettes or use sealed containers have been able to use the same colors for weeks, reducing the amount of paint wasted and preserving color mixtures for future use.