Vat Orange Pigment Classification: Synthetic Organic Chemical Description: Perinone Orange Opacity/Transparency: 5 Lightfastness Rating: I Permanency: Excellent Colour Index Name: PO 43 Colour Index Number: 77891 Munsell Notation Listing: Hue: 10.0 R Value: 5.25 Chroma: 15.3 Pantone Matching System: 1665 Spectrophotometer Readings: N/A Viscosity Range: 16000-18000 CPS PH Range: 8.3-9.0 Gloss Average: 88.03 CIE L*a*b* Values: L*54.19 a*53.46 b*48.12 Tint Strength: 79.62