Materials

Materials

Which materials we supply in which form, and which need confirmation, in one table. What we do not supply is listed too, so check before you ask.

By material

Table
MaterialForm · itemsDurometerStatusNote
PEEKExtruded tubing (ID 0.7–OD 18 mm) · square · heat shrink · moulded · machinedShore D 85Supplied±0.03 mm standard
PI polyimideTubing (wall within 0.02 mm) · braided tubing—Suppliednatural · black
PTFEExtruded · etched · liner · radiopaque · shaped · multi-lumen · mandrel · tearable sheath · heat shrinkShore D 55~65SuppliedRadiopaque fill available
FEPHeat shrink · radiopaque tubing · radiopaque sheathShore D 55~60Supplied
PFAExtruded tubing · heat shrinkShore D 60Supplied
ETFEExtruded tubing (radiopaque available)Shore D 67~70Supplied
ePTFEExpanded PTFE tubing—SuppliedPore spec on request
PVDFHeat shrinkShore D 75~80Supplied
UHMWPELiner (PFAS-free)—SuppliedOne published sample spec
TPUExtruded · radiopaque · multi-lumen · multi-layer · coil inner layerShore 80A~70DSuppliedRoll samples available
PebaxExtruded · balloon · jacket · multi-lumen · heat shrinkShore 25D~72DSupplied
PA nylon (PA11 · PA12)Extruded · balloon tubingShore D 60~75Supplied
PE · polyolefinExtruded tubing · heat shrink (PE 2:1)Shore D 45~65Supplied
PETHeat shrink (0.0127 mm class wall)—SuppliedMSDS · biocompatibility support
FKM VitonEndoscope bending rubberShore A 60~70Supplied
HDPE (BaSO₄ radiopaque)Extruded tubingShore D 65+Confirm with factoryResin can be recommended
PEI (Ultem) · TR55Single-lumen tubing—Confirm with factoryInquiries received
PVC (TOTM plasticiser)Extruded tubingShore A 60~90Confirm with factoryInquiries at 1M pcs/year scale
SiliconeTubing—Not listedAlternative suggested on inquiry

How to read

Notes

Durometer notation

Soft materials (TPU · PVC · silicone) in Shore A, rigid ones (fluoropolymers · PEEK · PA · HDPE) in Shore D. For Pebax the grade name is the Shore D value (e.g. Pebax 7233 = 72D).

Radiopaque fill

BaSO₄ · Bi₂O₃ · BiOCl · W can be added to PTFE · ETFE · FEP · TPU · Pebax · PA · HDPE. Loadings and effects per material are in the radiopaque filler note.

What “confirm with factory” means

Not in the Linstant catalogue, but under review from inquiries or feasible on existing lines. Send dimensions, durometer and quantity and we reply with feasibility or an alternative.

Documents

TDS · MSDS are provided for every material. ISO 10993 biocompatibility data is confirmed per grade and colour.

FAQ

FAQ

Can I ask about a material not on the list?

Yes. We do receive inquiries for PEI (Ultem) · TR55, PVC (TOTM) and radiopaque HDPE tubing. Send dimensions, durometer and quantity and we confirm feasibility or an alternative with Linstant.

How do I specify TPU durometer?

In Shore A or D — e.g. 85A, or a range such as 82–90A. We match the nearest stocked grade. Fluoropolymers, PEEK and HDPE are given in Shore D.

Which materials are PFAS-free?

UHMWPE liner, TPU, Pebax, PA, PE, PET, PEEK and PI contain no fluorine. PTFE · FEP · PFA · ETFE · PVDF are fluoropolymers.

Ask about a materialRadiopaque filler note
Contact

Send us a specification
and we answer feasibility first

Dimensions, material, application. Those three are enough to start. A drawing makes it faster.

grit@octud.com010-3338-2976
01Dimensions — OD / ID / wall, or Fr
02Material · whether a grade is specified · tolerance
03Application · secondary processing · expected volume
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