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    CAS-20® 4 Anhydrous Calcium Sulfate Filler banner
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    USG CorporationCAS-20® 4 Anhydrous Calcium Sulfate Filler
    • Chemical Family:Calcium Salts
    • Functions:Filler
    • Features:Narrow Molecular Weight Distribution, High Efficiency, Good Surface Appearance, Excellent Dielectric Properties, Abrasion Resistant, UV Resistant, Acid Resistant, Good Balance of Properties, Excellent Opacity, Good Processability, Cost Effective, High Purity, Wear Resistant
    • Synonyms:Basic calcium sulfate, Calcium sulfate (CaSO4), Calcium sulphate, Sulfuric acid calcium salt, Sulfuric acid calcium(2+) salt (1:1)
    CAS-20® 4 Anhydrous Calcium Sulfate Filler is manufactured from high purity gypsum rock using controlled calcination and fine grinding; the calcination process used greatly reduces its moisture affinity. USG CAS-20-4 Anhydrous Calcium Sulfate Filler can be used at high loadings and consistently provides an excellent balance of properties and good surface appearance. It is ideal for food packaging applications that require a filler with high purity and food acid resistance. USG CAS-20-4 Anhydrous Calcium Sulfate Filler can also be used as a partial replacement for titanium dioxide (TiO2) because of its high brightness and opacity. The narrow particle size distribution contributes to optimum impact properties in thermoplastics; USG CAS-20-4 Anhydrous Calcium Sulfate Filler finds success in a variety of thermoplastic, thermoset and plastisol systems. In addition, the low Mohs hardness minimizes abrasion to processing equipment. USG CAS-20-4 Anhydrous Calcium Sulfate Filler is available in 50 lb. bags or 2,000 lb. semibulk.

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