SURFACE TREATMENT · 3 processes

Surface treatment

PTFE that will not bond, PEEK where print rubs off, catheters that need different surface behaviour — three processes that change the surface only , not the material. None of them uses chemical reagents.

3 published processesProcess conditions agreed from drawing or sample
Process
3
types
Reagents
Chemical-free
chemical-free
Effect holds
12
months
Renewal
Yes
Liners past one year
Request a quote · TDSSee the comparison
PTFE etched tubing — translucent PTFE tubes turned brown by chemical-free etching

3 processes

3 published processes
Linstant published data

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Process
Applies to
Effect
Effect holds
PTFE etching · secondary etching
PTFE liners and tubing
Bonds and laminates to other polymers
Up to 12 months · renewable
PEEK Printing Pre-Treatment
PEEK tube
Higher surface adhesion and ink strength
Conditions agreed per job
Laser Conformal
Catheters and tubing generally
Alters micro and macro surface behaviour
Up to 12 months
From Linstant published data
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By item

By item

PTFE etching · secondary etching

PTFE Etched & Secondary Etched
PTFE etched tubing — translucent PTFE tubes turned brown by chemical-free etchingDetails →

The PTFE liner is central to catheter construction, yet PTFE resists laminating and bonding to other polymers — which raises processing difficulty and narrows where it can be used. Etching and secondary etching solve that.

ProcessChemical-free — no reagents
AdhesionBetter than conventional chemical etching
Effect holdsUp to 12 months
RenewalRenews liners over a year old
ManufacturingSuited to batch processing
Pre-treatment for braid-reinforced liners and catheter inner layers
PTFE etching enquiryDetails →TDS · MSDS available

Laser Conformal

Medical Catheter Laser Conformal
Laser conformal — catheter shaft with a ring pattern machined at the tipDetails →

A focused, high-energy laser beam is applied to the surface, conformally removing or adding surface material and so changing its micro and macro behaviour.

MethodFocused high-energy laser
EffectConformal removal or addition of surface material
TailoringSolution designed per customer material
ManufacturingMass production capable
Effect holdsUp to 12 months
When the surface must change but the material cannot
Laser conformal enquiryDetails →TDS · MSDS available

How to choose

How to choose

How to choose

The symptom picks the process — the three act on different materials and do not overlap.

Symptom
Cause
Process
Nothing bonds to it
PTFE surface will not accept adhesion
PTFE etching · secondary etching
Print rubs off
Low surface adhesion on PEEK
PEEK Printing Pre-Treatment
Surface behaviour must change
Micro-structure of the surface
Laser Conformal
None of the three uses chemical reagents.
Item by requirement
If stock liners are past their etch windowPTFE liners etched over a year ago can be re-treated to recover adhesion.
If reagents are hard to bring on siteAll three are chemical-free, so there is no residue to manage.
If volumes are highEtching runs in batches and laser conformal scales to mass production.
If the material is unusualLaser conformal conditions are designed around your material.
Send tube specification and quantity and we reply within three business days.

Ordered alongside

Surface treatment usually arrives bundled with liner and tubing orders.

Catheter printing that follows surface treatment
Catheter printing after pre-treatment
PTFE linerBraid reinforcementPEEK printingCatheter assembly
Related items
PTFE Etched TubeTubing supplied etched→PEEK tubeTakes the printing pre-treatment→Secondary ProcessingTip forming, bonding, marker bands→

FAQ

FAQ

Why will nothing bond to PTFE?

PTFE has very low surface energy, so adhesives and other polymers will not hold. Etching activates the surface so bonding and lamination become possible.

How does this differ from chemical etching?

No chemical reagents are used, so there is no residue to manage — and adhesion comes out better than with conventional chemical etching.

How long does the etch last?

Up to 12 months. After that, secondary etching restores adhesion.

What does PEEK pre-treatment change?

It raises surface adhesion so ink holds harder — graduations and markings stop rubbing off without changing material.

What can laser conformal do?

It removes or adds surface material conformally, changing micro and macro surface behaviour. Conditions are designed per material.

Can you treat tubing we send in?

Yes. Send specification, quantity and requirements and we set the process conditions and reply.

Contact

Send us a specification
and we answer feasibility first

Dimensions, material, application. Those three are enough to start. A drawing makes it faster. We reply with TDS, MSDS and MOQ together.

grit@octud.com010-3338-2976
01Dimensions — OD / ID / wall, or Fr
02Material or required properties · tolerance
03Application · expected volume · whether you need a TDS
Support in Korean and English · drawings welcomeSend an inquiry