I Excellent (Not Rated by ATSM, based on DS independent testing)
Transparency
Semi-Transparent
Staining
Medium
Granulation
No
Pigment
PR 255
Permanent, semi-transparent and medium staining, this fire engine red is cleaner than Cadmium or Permanent Red. It is a modern synthetic-organic pigment. While close in value to its Perylene cousin, it disperses more evenly and is less granular.