Non-hiding white pigments

Non-hiding white pigments, sometimes referred to as extenders or... 

Non-hiding white pigments, sometimes referred to as extenders or fillers, are low cost products used in large quantities particularly by the plastics industry. They are white powders of relatively low... 

They are products of relatively low refractive index and thus they are capable of playing only a minor role in providing opacity. They are used in plastics mainly to reduce cost. Commonly-used non-hiding white pigments include calcium carbonate, barium sulphate, talc (hydrated magnesium silicate), china clay (hydrated aluminium sihcate) and silica. 

A white non-reactive and non-toxic pigment that provides the greatest hiding power of all white pigments. 

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