PDS-Mistron 554-en version 1.0 February 2021
Product Data Sheet
Mistron 554
Description and Applications
Mistron 554 is off-white, high purity, platy, fine talc that is primarily used in architectural and industrial primers,
where its platy nature improves barrier properties, corrosion resistance and stain blocking ability. Mistron 554 also is
used in topcoats to reduce hard settling, improve sag resistance and extend prime pigments.
Mistron 554 could also be used in plastics to increase stiffness, HDT, and dimensional stability of plastic compounds,
and in rubber to reduce viscosity, improve processing, and act as a parting/dusting agent.
Typical Properties*
Hegman Fineness of Grind …….. 5.5
Brightness, GEB 87
Oil Absorption, g oil/100g Talc .. 41
Specific Gravity . 2.8
Moisture, wt% .. <0.5
Bulking Value, lbs/gal .. 23.3
* Notice: Although the data listed are typical, they are not production specifications. The supplier provides the data in good faith as typical of normal production, however it
makes no warranty or representation of any kind, express or implied, regarding the information given or product described including any warranty of suitability for a
particular purpose.
Mineral Analysis (by X-Ray Diffraction)
Talc, % >98
Dolomite, Chlorite, % .. <2
Particle Size Distribution (by Sedigraph) Micrograph (by Scanning Electron Microscopy)
Median Diameter: 3.2 microns
For more information, please visit www.magristalc.com