A phlogopite mica that offers beneficial rheological properties, is chemically inert, and provides the highest thermal stability of any mica.

Used In

  • Plastic Composites
  • Sound Damping
  • Paint and Coatings
  • Adhesives and Sealants


  • Plastic Composites: Increases stiffness and heat resistance
  • Sound Damping: A damper for sound vibration transmission and offers weight reduction versus other minerals
  • Paint and Coatings: Provides improved barrier properties, assists in adhesion, and reduces cracking and checking
  • Adhesives and Sealants: Controls shrinkage and reduces cracking

Typical Properties

pH value 9.0
Particle Size Mean 60 µm
Specific Gravity 2.73
Hardness (Mohs) 3
Refractive Index 1.58
Dielectric Constant 7.5