Welcome to Imerys Performance Minerals PLASTICS Home Plastics Expertise News & Events Breadcrumb Home Your Market Plastics Barrier properties BARRIER PROPERTIES Imerys minerals reduce permeability of plastics for films and packaging, biopolymers, recycled plastics and WPC Highly lamellar minerals such as talc and mica create an effective barrier for air or liquid transmissions in plastics compounds. Generally speaking, the more lamellar the mineral the better the barrier properties. The performance of these minerals in barrier applications will depend on aspect ratio, mineral particle orientation in the polymer and mineral addition rate. The particle size of the mineral selected will depend on material thickness: thin film for example, will require a finer mineral particle size. Platy minerals form a more effective barrier against gas diffusion Imerys talc and mica products improve oxygen barrier performance of LLDPE films Imerys highly lamellar minerals are particularly recommended for improving barrier properties in: Polyolefin film for food packaging applications Injection molded and blow molded packaging LDPE / EVA agricultural film used for greenhouse applications Biodegradable film Biopolymers and recycled plastics Wood plastic composites Depending on the thickness of the film, we recommend our Suzorite® mica, HAR® and Jetfine® talc products for enhancing barrier properties in plastic film applications. We offer a full range of bespoke formulation and technical and process support services to help you match the right mineral grade to your application requirement. PLEASE CONTACT US, WE WILL BE ONLY TOO HAPPY TO HELP CONTACT US CONTACT DIRECT ACCESS Menu 2 DOWNLOAD CENTER PRODUCT FINDER REGULATORY DOCUMENTS SAMPLE REQUEST SITE MAP ABOUT US YOUR MARKET OUR MINERALS SUSTAINABILITY INNOVATION NEWS & EVENTS CONTACT DOWNLOAD CENTER PRODUCT FINDER LOG IN TERMS & CONDITIONS AND PRIVACY POLICY SITEMAP IMERYS MINERALS GMBH FOLLOW US YOUTUBE LINKEDIN TWITTER COOKIE MANAGEMENT PRIVACY SETTINGS VISIT IMERYS GROUP WWW.IMERYS.COM Visit other Imerys Group Websites Download Center Product Finder Imerys Performance Additives collects cookies to enable the proper functioning and security of our website and help us offer you the best possible user experience. By clicking on Agree, you consent to the use of these cookies. You can change your cookie settings at any time. For more information, please read the Imerys Performance Additives Privacy policy. ✓ OK, accept all Personalize Feedback