Anhydrite
Finely ground and dressed natural anhydrite is a waterless sulphate. It is often formed as an evaporation product from sea water subject to progressive concentration of the salt water solution. Anhydrite makes up the sturdy solid base of gypsum deposits and can be mined separately.
Features
• tabular structure
• hardness of 3.5 (Mohs)
• density of 3.0 g/cm3
• high degree of whiteness (Y-value > 89)
• good transparency properties
Key applications
• industrial paints (e.g. corrosion protection, transparent lacquers)
• construction chemicals (e.g. floor coverings, screed)
• clear lacquer systems (among other things UV wood varnishes)
• adhesives.