Using the combination of an ultrafine talc,1 micron or less, and impact modifier to find the optimal balance between impact strength and stiffness, the formulator can actually design a rigid polyvinyl chloride (PVC) compound with sufficient property development to replace the engineering resin acrylonitrile-butadiene-styrene (ABS) in some applications.
Via this approach, the following PVC compound was formulated, using a 0.8 micron Specialty Minerals (SMI) talc with properties rivaling those of ABS.
UltraTalc® 609 talc is a bright Montana talc, 0.8 microns in size. For the whitest, brightest applications, we recommend either the coated appearance grade, UltraTalc® AG 609 talc or the 1.0 micron FlexTalc® 610 talc which is made from high-brightness Chinese talc. Click on one of the product names to download the technical data sheet for that SMI talc product.
Learn more:
- SMI minerals for plastics
- SMI minerals for rigid PVC
- SMI talcs for rigid PVC
- Talc in plastics uses
- What is Talc? A mineral introductory page
- Impact Fundamentals
- PVC Compounding Technology Fundamentals
- Download technical data sheets for SMI products
- “Fillers in PVC – A Review of the Basics” - download brochure
- “Increasing the Flexural Modulus of Rigid PVC at Elevated Temperatures” - download publication
- Download brochure on Specialty Minerals Plastics Applications Laboratory
- Request a sample
- About Specialty Minerals Inc.
- Quality and ISO at Specialty Minerals
