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Durable titanium dioxide extender for high quality matt paints


Opacilite™ is the ideal titanium dioxide extender and opacifier for high quality matt paints.


Providing durability and exceptional opacity both above and below the CPVC of a coating, Opacilite™ is the first choice for TiO2 extension in high quality matt and silk paints.


Opacilite™ Cross Section, showing the voids within the clay particles


Opacilite™ flash calcined kaolin offers:-


Titanium dioxide extension
bullet Excellent wet opacity
bullet Outstanding dry hiding
bullet Durable
bullet Effective above and below coating CPVC
bullet For use in high quality matt and silk paints


Opacilite™ is a naturally-sourced mineral product allowing significant cost savings


The intrinsically sealed voids of the aggregated structure are optimised for maximum light scattering and give Opacilite™ its characteristic properties. Sealed rather than open voids result in better wet opacity, and allow dry hiding to occur even below the CPVC of the coating.

The high durability of Opacilite™ makes it particularly suitable for use in high quality paints.


Typical Physical Characteristics

Brightness (ISO) + 10µm (%) - 2µm
Mean Particle
Size (d50 µm)
Oil Absorption
Hegmann Value (µm)
87 5 56 1.6 74 <35


For detailed formulation advice please contact us


Product Related Literature

PDF FileOpacilite™ - Durable TiO2 extender for high quality matt paints [511KB]




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©Imerys Minerals Ltd. 2012 | Registered office: Par Moor Centre - Par Moor Road - Par - Cornwall - PL24 2SQ UK | Company No: 269255