Co-Extrusion Structures
Co-extruded sheet is produced by using two or more extruders to simultaneously process thermoplastic resins through a feed block, multi-manifold sheet die, or combination of both. This process creates a uniform sheet made up of two or more bonded layers, with each layer retaining its own color, mechanical properties, and chemical characteristics.
Co-extrusion offers several advantages, including:
-
Reduced use of virgin resin and additives
-
Enhanced mechanical and chemical performance
-
Greater flexibility in color and appearance
-
Improved material efficiency
-
Overall cost savings
Common Applications
Co-extrusion is commonly used to optimize material usage and create sheet structures with specific performance, aesthetic, or cost requirements. By combining different resin types, regrind, colorants, or additives in separate layers, manufacturers can reduce reliance on 100% virgin polymer while maintaining the desired properties of the finished sheet.
For example, incorporating a layer of regrind or a lower-cost polymer beneath a performance-focused outer layer can significantly reduce material costs without compromising appearance, strength, or functionality.
Other Thin Gauge Technology Pages:
OFFERING YOU THE BEST SOLUTION FOR YOUR EXTRUSION LINE
Processing Technologies International (PTi) is a global leader in high-performance sheet extrusion machinery. Engineered to exact standards, PTi systems feature innovative design solutions that deliver superior equipment performance and consistently produce sheet goods that meet the industry’s highest quality standards.
PTi offers a comprehensive range of products and services designed to support today’s sheet producers and the evolving demands of the future. While this overview highlights many available configurations and capabilities, it represents only a portion of the customized extrusion solutions PTi provides for a wide variety of applications.