Orthotics and Prosthetics

Rigid plastics, flexible EVAs, and foams used for orthotics and prosthetics

Rigid plastic sheet materials including HDPE, polypropylene, and KYDEX® Thermoplastic Sheet have a range of mechanical properties from soft to stiff. This allows clinicians to select plastics materials that optimize structural support and patient comfort. Flexible EVA copolymers such as OP-TEK® Flex are used as socket liners. EVAs are available with internal lubricants that reduce friction.

In addition to plastic sheet, petronthermoplast offers a wide assortment of transfer patterns to apply decorative graphics to orthotics.


Outstanding impact resistant low cost plastic, easy to machine, and thermoform.


Clear, flexible plastic sheet with excellent drape and blister forming characteristics.


Soft, flexible copolymer with low-temperature toughness, and stress-crack resistance.


Durable, versatile, low cost, abrasion and chemically resistant plastic material.

High Impact Polystyrene

Low cost, tough plastic material that is easy to thermoform and fabricate.

KYDEX® Thermoplastic Sheet

High impact, thermoplastic sheet that is tough, durable, and easy to form.



Soft, flexible, lightweight plastic material that is easy to fabricate and form.



Transparent plastic sheet with good impact resistance and outstanding thermoforming characteristics.


Low cost, chemical resistant plastic with excellent aesthetic qualities.


Soft, clear polymer is tough and durable with excellent thermoforming characteristics.


Fatigue resistant, flexible, opaque, lightweight, thermoplastic elastomer sheet.