Layering Thermoplastics

Co-extrusion is a manufacturing process in which two or more different polymers are extruded through a single die to form one composite product. These polymers often have varying properties which allow the final product to have unique functionalities. This process can be advantageous for encapsulating a product with UV/Chemical protection or if a soft inner core is necessary for flexibility. It is also ideal for achieving color changes in a product allowing for clear site windows or semi-transparent sections for light diffusion. Many industries use co-extrusion to take advantage of the properties that each material can offer, combining them in ways that would be difficult or costly to achieve with single-material parts.

Contact us today with your product specifications and speak with our on-site engineering team, who will collaborate with you to manufacture your product at our facility!

Site Windows & Light Diffusion

Co-extrusion allows for simultaneous extrusion of both opaque and transparent materials. An opaque material usually forms the majority of the product, while a section of transparent material (like clear PVC, CAP, or PETG) is co-extruded in specific areas to create a window. The co-extrusion process ensures the window is securely integrated into the product without requiring separate steps to bond different materials later in the process saving both time and money.

Clear windows can help operators observe critical areas of protected items without the need to remove the protective cover. They can also be used to tint, diffuse or direct a light source in a specific direction for inspection applications.

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Living Hinges

This co-extruded product was engineered as a superior alternative to the traditional pin-joint-hinge. The living hinge allows two parts to rotate around a pivot point without the use of separate moving parts like pins or bearings. Instead a flexible thermoplastic material is co-extruded in between two rigid sections resulting in a robust one-piece hinge. The flexible material has been engineered to cycle repeatedly without breaking or wearing out, therefore, living hinges are known for their durability and cost-effectiveness in designs that require repeated opening and closing motions. These hinges are commonly found in products like plastic containers, battery compartments, or folding mechanisms and have many different configurations!

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Our Collaborative Process

Work closely with our expert sales team to choose the right product line for your application.

Our Process - 1

Submit Your Requirements

Submit a detailed drawing with exact specifications or a proof of concept so that we may fully understand your application.

Our Process - 3

Evaluation and Feedback

Our sales team will review the specifications and advise you in detail regarding whether a stocked item or a custom design will suit your requirements.

Our Process - 2

Review and Order

Stocked items can be quickly quoted while all tool design and development for custom work will be further evaluated by our engineering department.

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Testimonials

WHAT THEY SAY ABOUT US

We’ve partnered with Petro Packaging Company Inc. for several years now, and their commitment to quality and reliability is unmatched. The seamless integration of their products into our supply chain has resulted in cost savings and improved overall performance. Their attention to detail make them an invaluable partner.

Sarah M.

After over two years of on time deliveries of over 400 thousand tubes and caps with zero defects. Petro Packaging has become a premier supplier for us.

James C.

Thank you for your prompt professional service!  Petro always goes above and beyond to make sure our orders are taken care of!  Petro’s services help us ensure our customers live better lives.  I enjoy working with you.

Pamela S.

For Over 50 Years we have worked together with basic principal foundations of Trust, Consideration and Respect!

Linda S

Our Products

Custom Tubes

Custom Tubes
Profile Extrusions

Profile Extrusions
Clear Containers

Clear Containers