Small-bore PEEK tubing for HPLC, LC, sampling, autosamplers, laboratory automation and analytical instruments, selected by ID, OD, fittings, solvent, pressure, temperature and cleanliness.
| Commercial OD family | Published ID examples | Published pressure examples | Published lengths and colors |
|---|---|---|---|
| 360 µm OD (0.0145 in) | 25, 50, 100 and 150 µm (0.001, 0.002, 0.004 and 0.006 in) |
2,000-5,000 psi (138-345 bar) |
5 ft (1.5 m); natural, red or yellow depending on ID |
| 1/32 in OD (about 0.79 mm) | 0.005, 0.007, 0.010, 0.015 and 0.020 in (0.125-0.50 mm) |
3,000-5,000 psi (207-345 bar) |
5, 50 and 100 ft examples; red, yellow, blue, natural or orange |
| 1/16 in OD (about 1.59 mm) | 0.0025, 0.004, 0.005, 0.007, 0.010, 0.020, 0.030 and 0.040 in (65 µm-1.00 mm) |
3,000-7,000 psi (207-483 bar) |
5, 50 and 100 ft examples; natural, black, red, yellow, blue, orange or green |
| 1/8 in OD (about 3.18 mm) | 0.062 and 0.080 in (1.55 and 2.00 mm) |
3,000-4,000 psi (207-276 bar) |
5 ft (1.5 m); natural |
Connections where low extra-column volume and compatible fittings are important
Small-volume transfer paths requiring controlled bore and repeatable cut ends.
Short connections selected by port geometry, solvent, pressure and service access
Routable, electrically isolating fluid paths for analytical and diagnostic equipment.
Heat shrink Mylar tube belongs to the polyester film tubing family. In WELLELE’s process map, Mylar tube and Mylar heat shrink tube are associated with flat-rolling / film-based sleeve processes. The final construction should be confirmed by product series, required diameter, wall thickness and shrink behavior.
Polyester film
↓
Forming / winding
↓
Bonding / forming
↓
Cut length
↓
Heat recovery around component / Quality control
Making the app managable
| Parameter | Custom capability | RFQ requirement |
|---|---|---|
| Material | PET/polyester film; Mylar name when traceable | Film identity and document need |
| Shrink ratio | 2:1 3:1 available | Free or restrained shrink condition |
| Shrink start | Around 90°C | Heating equipment and cycle |
| Application temperature | Up to about 150°C by product construction | Continuous/peak temperature and duration |
| Supplied ID | Custom | Component maximum OD and installation clearance |
| Wall thickness | Custom film/layer build | Insulation, stiffness and wrinkle target |
| Cut length | Custom | Coverage before/after heating and tolerance |
| Longitudinal change | Product and process specific | Final coverage acceptance |
| Appearance | Functional or cosmetic standard | Wrinkle, burn, whitening and end condition |
Use this table to define the tube WELLELE should review. A complete RFQ identifies both the nominal geometry and the operating conditions used to approve it.
| Parameter | Why it matters | What to provide |
|---|---|---|
| Internal diameter | Flow, backpressure, delay volume and dispersion | Nominal ID, tolerance and flow range |
| Outside diameter | Fit with ferrule, nut, port and routing hardware | Nominal OD, tolerance and connection system |
| OD-to-ID ratio | Pressure capability and stiffness | Both target OD and ID |
| Pressure/temperature | Safe limit changes with size, solvent and fittings | Normal/peak values, pulsation and safety factor |
| Chemical exposure | Some acids attack and some solvents swell PEEK | Chemical, concentration, temperature and time |
| Cut/end quality | Angled or crushed ends cause leakage and dead volume | Length tolerance and end inspection |
| Cleanliness/packaging | Particles, oils and mixed sizes affect instruments | Cleaning, capping, labeling and lot separation |
Pressure statement: A pressure rating is meaningful only when OD, ID, temperature, fluid, fittings, installation and safety factor are defined. Publish only size-specific, condition-specific values supported by a test method or qualified engineering data
What is heat shrink Mylar tube?
Heat shrink Mylar tube is a shrinkable polyester film tube used as an insulating, protective or covering sleeve. After heating, the tube recovers around the component to create a closer fit than a non-heat-shrink sleeve.
It is commonly reviewed for coils, electrical components, wire assemblies, sensors and compact OEM parts where insulation, fit and component protection must be balanced.
How do I size heat shrink Mylar tubing?
Start with the component minimum and maximum OD, then define the initial tube ID, wall thickness, finished length and heating process.
Why does heat shrink Mylar tubing wrinkle?
Wrinkling is commonly caused by oversized initial ID, uneven heat, sharp component geometry changes, trapped air or the wrong shrink sequence.
Can heat shrink Mylar tube be applied by heat gun?
Heat guns, ovens, shrink tunnels and coil heaters may be used depending on tube size, component geometry and required appearance.
Is heat shrink Mylar tube the same as PET heat shrink tubing?
In purchasing language, the terms may overlap. In engineering specification, confirm the film source, tube construction, shrink behavior and finished-tube requirements.
What information is needed for quotation?
Provide application, component OD range, initial tube ID, wall thickness, length, heating method, operating temperature, assembly method and annual quantity.
Can I choose the tube ID from the nominal component diameter?
No. Use the full minimum and maximum component OD. The maximum OD controls installation clearance before heating, while the minimum OD helps determine whether the tube can recover tightly enough. Tolerance, profile changes and the heating method also affect the starting size.
Engineering recommendation
Select heat shrink Mylar tube from the complete component dimensions, operating conditions, manufacturing process and acceptance criteria. Use samples to confirm fit and function before volume production
Fluoropolymer Tubing