Specialty Minerals Inc. (SMI) has long been considered a worldwide leader in antiblock products, based not only on our expertise in pioneering antiblock technology, but also our unmatched commitment to the polyolefins industry. Recognizing our customers’ need is for service and support, as well as cost-effective antiblocks, SMI has invested significantly over the past decade in both people and equipment—including our own blown and cast film lines, to allow us to develop new products to meet changing market requirements. SMI’s commercial development approach has included partnered programs with both customers and co-suppliers, thus keeping us ever current with technology and changing market needs.
Specialty Minerals Antiblock Film Laboratory
Included in the SMI Film Laboratory for the support of customers and product development are:
- Blown Film Extrusion Line
- Cast Film Die and Chill Roll
- Twin Screw Extruder
- High Intensity Mixers
- Melt Rheometer
- Film Property Testing
- Blocking, Reblock & Coefficient of Friction (COF)
- Haze, Clarity, Gloss
- Rheology
- Physical Property Testing
In addition, SMI maintains state-of-the-art analytical resources for mineral characterization, elemental analysis, electron microscopy, compound analysis, and many other quantitative and qualitative methods.
Learn more:
- Specialty Minerals antiblock talcs for polyolefin films
- 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.
- SMI Publications on talc-based antiblocks: Downloadable papers by Specialty Minerals on talc-based antiblocks and their applications.
- Replacing diatomaceous earth with SMI talc-based antiblocks
- Diatomaceous earth replacement study
- Replacing synthetic silica with SMI talc-based antiblocks
- Synthetic silica replacement study: blown film
- Synthetic silica replacement study: cast film
- Economical SMI talc antiblocks
- SMI antiblocks for low-polymer process aid interaction
- SMI antiblocks for low-odor applications
- Reduced coefficient of friction with surface-treated talc antiblocks
- Blown Film Basics
- Cast Film Basics
- What is Talc?
- Download technical data sheets for Specialty Minerals products
- Request a sample
- About Specialty Minerals Inc.
- Specialty Minerals Plant Locations and Profiles
- Quality and ISO at Specialty Minerals
