Orfitrans® Stiff

Orfitrans Stiff is the Gold Standard for prosthetic test sockets for long-term test applications.

No other material comes close to Orfitrans Stiff in performance and quality. The material is virtually indestructible, yet easy to drill into. It pulls easily and uniformly and feels great.

Product Characteristics


  • One of the most rigid products of the Orfitrans range, self-supporting.
  • High impact resistance.
  • Orfitrans Stiff will not break, crack or shatter when dropped. 
  • Virtually indestructible.
  • High fatigue resistance.
  • High stiffness.


  • The socket will remain transparent.
  • Clear, slightly blue colour.
  • The limb remains visible when wearing Orfitrans Stiff.

Low shrinkage

  • No risk for excessive pressure or compression.
  • The socket material will keep the shape and dimension determined by the mould.

Working properties

  • Non-sticky.
  • Bubble forming.
  • Pulls easily and uniformly.


  • Styrene based.
  • Delivered with protective PE-foil. PE-foil has to be removed before activation.


  • 160°C.
  • Activation time according to thickness.

Product range

  • Product is available in different thicknesses and sheet sizes.
Thicknesses mm (inches)
8 mm (5/16")
10 mm (3/8")
12 mm (1/2")
15 mm (19/32")
18 mm (7/10")
Instructions for Use
Orfitrans Activation Poster
Technical Data Sheet
Safety Data Sheet
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