Silicone sealants can be formulated to provide a wide range of performances that satisfy everything from household DIY (do-it-yourself) to more demanding fire-stop and insulating-glass applications. Preformance data generated in a generic, one-part silicone sealant formulation is presented here to help the formulator select the appropriate precipitated calcium carbonate (PCC) to satisfy the particular demands of the application.
Three ultrafine PCCs were tested. These products varied in surface area, average particle size, and coating.
Application results show the impact of the PCCs on the rheological and mechanical properties of the sealant.Thixo-Carb® 500 PCC provides a lower modulus ideal for high elongation sealants. The Thixo-Carb® 300 PCC provides a high modulus and highest ultimate elongation. We recommend it for high-performance sealant applications. The Ultra-Pflex® PCC provides hardness and elongation similar to the Thixo-Carb® 300 PCC.
Learn more:
- SMI minerals in silicone sealants
- SMI minerals for adhesives and sealants
- SMI products used in automotive sealants
- SMI products used in construction sealants
- SMI precipitated calcium carbonates (PCCs) for adhesives and sealants
- Choosing the right precipitated calcium carbonate (PCC) for a sealant application
- SMI precipitated calcium carbonate (PCC) – sealant polymer application selector chart
- SMI ground calcium carbonates (GCCs) for adhesives and sealants
- SMI minerals in housing and construction. See the products used to build your home or in your home that may contain a Specialty Minerals product.
- SMI minerals in automotive uses. See the parts of your car that may contain a Specialty Minerals product.
- Download a product’s technical data sheet or MSDS
- Request a sample
- What is Precipitated Calcium Carbonate (PCC)? A minerals introductory webpage.
- What is Nano Precipitated Calcium Carbonate (PCC)? A minerals introductory webpage.
- About Specialty Minerals Inc.
- Specialty Minerals plant profiles: Adams
- Quality and ISO at Specialty Minerals
