Rublev Colours Pigment Cobalt Turquoise - 100 g

Cobalt Turquoise, Pigment Green 50 (PG50), is a cobalt titanate green spinel pigment. It is a turquoise-blue powder produced by high-temperature calcination, forming a stable crystalline spinel structure.

This pigment exhibits fair opacity in both ultraviolet and visible light and is chemically inert, heat-resistant, and stable under ultraviolet light. It is non-bleeding and non-migratory, with good durability. It is typically used in applications requiring resistance to heat, light, and weathering. PG50 is compatible with most resin systems and polymers and is non-warping.

Reflectance measurements show strong near-infrared reflectance (approximately 700–1300 nm) and moderate visible reflectance, which together produce its characteristic turquoise-blue color. This contributes to its use in cool pigment systems designed to reduce heat buildup.

Cobalt Turquoise is chemically inert and insoluble, with excellent resistance to light, heat, and chemical exposure. It is compatible with oils, acrylics, alkyds, and polymer systems.

Water-Based Paint

In water-based systems, Cobalt Tourquoise shows moderate tinting strength and may exhibit slight granulation depending on dispersion.

Oil-Based Paint

In oil, PG50 produces a durable, stable film with moderate opacity and tinting strength.

Oil Absorption and Grinding

Oil absorption is approximately 17 kg per 100 kg pigment. The pigment disperses readily and does not require extensive grinding.

Toxicity and Regulatory Compliance

Cobalt Turquoise is considered low in toxicity in its insoluble form. Standard precautions should be taken when handling powders.

Regulatory Compliance:

• 21CFR 170.39 (FDA) – approved for food-contact polymers (≤2%)
• AP(89)1 (Europe)
• AS2070-1999 (Australia)
• BfR (Germany)
• CONEG (USA)
• EN71.3:2013 Category I & III
• EU Packaging 94/62/EC
• FPL Green 50 (France)
• GB9685:2016 (China)
• RoHS / ELV / WEEE (EU)
• TCLP (USA)