Coefficient of Friction Reduction
Coefficient of friction can be reduced when switching from conventional untreated antiblocks to surface-treated talc alternatives. Specialty Minerals Inc. (SMI) proprietary surface treatment reduces talc-amide slip aid interaction. The reduced adsorption of amide on the talc surface results in lower COF values as shown by the following examples.
Reduced COF With Coated Polybloc® Talc in 1 MI Butene LLDPE

Reduced COF With Coated Polybloc® Talc in 1 MI Metallocene LLDPE
Click here to download an introduction to antiblocks and SMI talc-based antiblocks in LLDPE films.
Learn more:
- Specialty Minerals antiblocks
- What is an antiblock?
- Selecting a talc-based antiblock
- Formulating High Performance LLDPE Blown Films With Optibloc® High Clarity Antiblocks – Introduction to antiblocks – a downloadable Specialty Minerals publication.
- Replacing diatomaceous earth with Specialty Minerals talc-based antiblocks
- Replacing synthetic silica with Specialty Minerals talc-based antiblocks
- Economical SMI talc antiblocks
- SMI antiblocks for low-polymer process aid interaction
- Reduced slip agent interaction with surface-treated talc antiblocks
- Blown Film Basics
- Cast Film Basics
- Specialty Minerals Antiblock Technical Service Support
- What is Talc? A mineral introductory page
- Download technical data sheets for Specialty Minerals products
- Request a sample
- SMI Publications on talc-based antiblocks: Downloadable papers by Specialty Minerals on talc-based antiblocks and their applications.
- About Specialty Minerals Inc.
- Specialty Minerals Plant Locations and Profiles
- Quality and ISO at Specialty Minerals




