link to our Enquiry form
Consistently high quality thermoplastics for the orthotics and prosthetics profession, worldwide.
Our Materials

 



Support

Go to our support area to download product leaflets and material safety guides...

 

Register

Register to access our secure support area for data sheets, manuals and more Go Register

Copolymer Polypropylene

 

Copolymer Polypropylene

Our Premium Grade copolymer polypropylene is made to a specification set by NSP that takes into consideration the challenging nature of manufacturing in the prosthetics and orthotics profession. The material is designed to drape evenly avoiding excess thinning which can lead to a rejection of the formed device.


Shrinkage? Not a problem when using our Premium Grade copolymer polypropylene; An independent study measured the shrinkage by volume of our copolymer polypropylene at less than 1%, a standard that is hard to match.

 

Copolymer polypropylene consists of mainly propylene with a small amount of ethylene. It is this combination that embues copolymer polypropylene with its unique ability to resist fatigue when flexing under load. In orthotics, this feature makes copolymer polypropylene particularly suitable for AFO’s (Ankle Foot Orthosis), KAFO’s (Knee Ankle Foot Orthosis) and DAFO’s (Dynamic Ankle-Foot Orthosis). Copolymer polypropylene is also used to make TLSO’s ( Thoraco Lumbar Sacral Orthosis - Thoracolumbarsacral orthosis), where a balance of flexibility and rigidity has to be achieved.


In prosthetics, copolymer polypropylene has been widely used to make BK (Below Knee) and AK (Above Knee) sockets with great success. The ability to make a socket quickly and cleanly is appreciated, as is the fact that minor adjustments can be quickly and easily made, without risking the mechanical integrity of the socket.

 

  • Lightweight
  • Versatile
  • Rigid
  • High impact strength
  • Maintains impact strength down to -20°C / - 4°F
  • Has the ability to constantly flex without fracturing
  • Shrinkage of <1% (by volume)

 

Available in the following thickness:
2mm, 3.1mm, 3.5mm, 4.7mm, 6mm, 9mm, 12mm, 15mm.
Tolerance on thickness: ±5%

 

Also available in the following colours:
Black, Flesh, Poppy Red, Purple, Royal Blue, Sky Blue, Solid White, Yellow (Colours not available in every thickness. Please contact NSP for availability before ordering).

 

Sheet size for orthotics:

2440 x 1220mm


Square size for prosthetics
500 x 500mm, 460 x 420mm, 406 x 406mm, 343 x 343mm, 305 x 305mm.

 

Moulding temperature:

Orthotics 180° - 200°C / 356° - 392°F
Prosthetics 200°C - 220°C / 392° - 428°F


Cooking time:

Cooking time: 3 minutes per mm thickness. N.B. As all ovens have slightly different heating
characteristics please use our recommended timings as a guide only.

 

For information regarding the NSP range of ovens click here

 

Prosthetic and Orthotic Applications

 

 


Support Documents

 

 

© Copyright NSP

North Sea Plastics Ltd | Unit 2, 5 Campsie Road, Kirkintilloch, Glasgow G66 1SL Tel: +44 (0)141 776 7900 Fax: +44 (0)141 776 6699 email: info@northseaplastics.com