Specialty Minerals Inc. (SMI) ground calcium carbonates (GCCs) are surface treated with stearic acid to improve flowability and dispersion into polymer melts. Product selection criteria for specific applications are typically based on average or median particle size, top size, particle distribution curve, and cost. Some specialized applications like flexible PVC film will also consider plasticizer demand (that is, absorption of plasticizer by the filler).

Learn more:

• SMI products for plastics
• Specialty Minerals minerals for filled polyolefin and other films
  
  
• SMI minerals for flexible PVC
• SMI antiblock talcs for polyolefin films
• Ground calcium carbonate (GCC) in plastics uses
• Precipitated Calcium Carbonate (PCC) in plastics uses
  
  
• What is Ground Calcium Carbonate (GCC)/Limestone? A mineral introductory webpage
• What is Precipitated Calcium Carbonate(PCC)? A mineral introductory webpage
  
  
• Reinforcement Fundamentals
• Antiblock Fundamentals
  
  
• About Specialty Minerals Inc.
• Quality and ISO at Specialty Minerals