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BURGESS HC-77 - Technical Data Sheet
BURGESS HC-77
AIR-FLOATED HYDROUS ALUMINUM SILICATE
BURGESS HC-77 is a medium particle size, air-floated clay used in primers and adhesives.
BURGESS HC-77 exhibits low soluble salts, moderate dispersion, and moderate brightness.
Typical Physical Properties
GE Brightness % 77.0
325 Mesh Residue % 0.40
Average Particle Size Sedigraph 1.4 μ
Free Moisture % Max 1.0
Specific Gravity 2.63
Refractive Index 1.56
pH (20% Solids) 4.8
Typical Chemical Properties
Loss On Ignition % 13.7 – 14.1
Silica (SiO2) % 44.8 – 45.3
Alumina (Al2O3) % 37.5 – 39.7
Iron Oxide (Fe2O3) % Trace
Titanium Dioxide (TiO2) % 1.35 – 2.27
Issue Date: HL00J
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.