Rublev Colours Dry Pigment – Cadmium Yellow Light (PY35) 100g is a premium, high-performance yellow made from cadmium zinc sulfide (CdS/ZnS)—the chemistry behind the most durable, lightfast cadmium yellows used in professional artists’ colours. Formulated with up to 25% zinc content to achieve a lighter, slightly greenish-yellow hue, Cadmium Yellow Light delivers the classic cadmium advantages: high opacity, strong tinting power, and exceptional stability in demanding applications.

This synthetic inorganic pigment is prized for its excellent chemical resistance and high heat stability (up to 400°C), making it suitable not only for traditional paint-making (oil, acrylic, watercolour systems) but also for durable colour applications where lesser yellows can shift or fade. With ASTM Lightfastness I across acrylic, oil, and watercolour, it’s a reliable choice when permanence matters.

Key pigment details

• Colour Index: Pigment Yellow 35 (PY35)

• Pigment type: Synthetic inorganic

• Chemical name: Cadmium zinc sulfide

• Mean particle size: 0.7 microns

• Oil absorption: ~21.8 g oil / 100 g pigment (useful for grinding into oil paint)

• Refractive index: 2.384 | Specific gravity: 4.71

Best uses

• Grinding into oil paint, mixing into acrylic dispersions, watercolour/gouache, casein/tempera, and other binder systems that benefit from an opaque, clean, high-chroma yellow.

Health & safety (important): Contains a cadmium compound and is classified by International Agency for Research on Cancer as probably carcinogenic to humans by inhalation. Avoid breathing dust, mists, or spray; do not sand; keep out of reach of children. Use appropriate PPE (gloves, ventilation, properly fitted respirator) when handling dry powder. Conforms to ASTM D-4236.