PDS-Nicron 303-en version 1.0 February 2021
Product Data Sheet
Nicron 303
Description and Applications
Nicron 303 is a high purity microcrystalline talc. The lamellar nature of Nicron 303 enhances film strength and
flexibility, and provides barrier properties in architectural and industrial primers and topcoats to improve corrosion
resistance and stain-blocking ability.
Nicron 303 is also used for rheology and reinforcement in adhesive, sealant, caulk, joint compound, wood putty, and
auto body patch applications.
Typical Properties*
Hegman Fineness of Grind …….. 3
325 Mesh (44 micron), % Passing 99.5
Brightness, GEB 82
Oil Absorption, g oil/100g Talc .. 31
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: 7 microns
For more information, please visit www.magristalc.com