- Functions:Extender, Filler
- End Uses:Top Coat, Primer
Minex® ST 4 A100-10 is a functional filler that is produced from nepheline syenite, a naturally occurring, silica-deficient sodium-potassium alumina silicate. Automated scanning electron microscopy confirms that Minex® ST grades contain less than one-tenth of one percent crystalline silica. No free crystalline silica is detectable in the mineral complex. All Minex® ST grades are processed and sized with rigid adherence to Covia’s QIPSM quality assurance programs.