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BURGESS OPTIWHITE® UF is a state of the art extender with superior brightness, delivering unsurpassed wet and dry opacity. It is derived from ultrapure hydrous feedstock, then further processed using flash calcination. During flash calcination, particles remain separated which prevents the formation of aggregates, allowing for fine particle distribution. These fine particles have internal air voids that cannot be wet out thus achieving superior light refractivity.
GE Brightness % 95
325 Mesh Residue % 0.15
Average Particle Size Sedigraph 0.8 - 0.85 μ
Free Moisture % 0.5
Specific Gravity 2.6
Refractive Index 1.62
pH (20% Solids) 5.5 - 6.2
Silica (SiO2) % 51.0 – 52.4
Alumina (Al2O3) % 42.1 – 44.3
Iron Oxide (Fe2O3) % Trace
Titanium Dioxide (TiO2) % .75 - 1.00
The suggestions and data contained in this bulletin are based on data which are believed to be reliable. They are offered in good faith, to be applied according to the user’s own best judgment. Since operating conditions in the processor’s plant are beyond our control, Burgess Pigment Company cannot assume responsibility for any risks or liabilities which may result from the use of its products. Likewise, no liability is assumed for any claimed patent infringement occurring by reason of any method or manner of use, or any product made by a consumer. While the Burgess Pigment Company guarantees the quality of its products, it cannot give any warranty regarding the results obtained by the use thereof.