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A new generation of high performance Opacifier
Opacilite™ is a high whiteness “flash calcined” kaolin produced by a revolutionary new rapid heating process. This patented technique creates large numbers of intrinsically sealed voids within the clay particles. These tiny voids provide outstanding opacifying properties in coatings below and above the critical pigment volume concentration (CPVC), specifically less than 65% PVC. In addition, the low specific gravity provides an inherent volume cost saving. The presence of these sealed voids distinguishes Opacilite from conventional mineral extenders. Opacilite also has external voids on its surface, which contribute to opacity above CPVC.
Opacilite™ Cross Sections, showing the voids within the clay particles
Opacilite™ flash calcined kaolin offers the following important benefits in emulsion paints :-
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High dry film opacity |
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Good wet film opacity |
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Cost savings via reduced levels of TiO2 pigment |
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Cost savings via reduced paint specific gravity |
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Good whiteness and low yellowness |
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Excellent scrub resistance |
These benefits are achievable in a wide range of emulsion or latex based paints, both below and above the CPVC, including:-
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Satin and eggshell finishes for wood and walls |
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Mid sheen (soft sheen) emulsion paints for walls |
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Exterior masonry paints |
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Primers |
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Matt emulsion paints |
Product Related Literature:
Opacilite™ flash-calcined kaolin in Emulsion Paints [1,361KB]
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Featured Case Study
Cost Effective Opacity - A Natural Alternative to Opaque Polymer
Flash calcined kaolin and opaque polymer are competing technologies that can exert a direct influence on the optical properties of interior decorative matte emulsion paint. Flash calcined kaolin’s intrinsically sealed voids and opaque polymer air voids both act as scattering sources that
make a direct contribution to dry film opacity...read more