Surlyn® is Widely Used For:

  • Cranial helmets
  • Face masks for sports and burns
  • Upper limb orthoses
  • Upper and lower extremity orthotics
  • Scoliosis braces and body jackets
  • Flexible prosthetic sockets
  • Check sockets

Performance Characteristics:

  • Excellent drape forming and blister forming characteristics
  • Good Impact resistance
  • Good seaming characteristics
  • Good clarity
  • Good fatigue resistance
  • Outstanding thermoforming characteristics

Common Brands:

  • Surlyn®

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

For Prosthetics– Surlyn® can be used as an evaluation interface or definitive transfemoral flexible interface (check socket). 

For Orthotics– Surlyn® can be used for spinal upper limb orthoses, burn masks and helmets.

Tech Tip– Can be challenging to edge finish due to the low melting temperature of the material.

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SHEET Dimensions:
12 in x 12 in – 48 in x 96 in
0.125 in – 0.500 in
Texture, Surface, Pattern Smooth

Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request.

Surlyn® Properties

Typical Properties of SURLYN®
Specific gravity   ASTM D792 0.94 - 0.97
Hardness Shore D ASTM D2240 39 - 68
Flex modulus room temp, kpsi ASTM D790 4.3 - 75
Tensile strength kpsi ASTM D638 2.1 - 5.4
Elongation at break % ASTM D638 285 - 660
Melting point °C / °F DSC* 70°C - 100°C
158°F - 212°F
Freeze point °C DSC* 37 - 69
Optical haze 0.25 in.(6.4 mm) ASTM D1003A 4 - 27

* As determined by differential scanning calorimetry

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand. 

Explore the physical, mechanical, thermal, electrical, and optical properties of Surlyn®.

Sort, compare, and find the plastic material suited for your application using our interactive properties table.