Heat Shrinked Teflon Tubing
Heat shrink Teflon (PTFE) tubing is a high-performance material known for its exceptional chemical resistance, high temperature tolerance (up to 260°C or 500°F), and very low coefficient of friction. It is widely used in demanding applications such as aerospace, medical devices, and chemical processing.
Procedure for Heat Shrink Teflon (PTFE) Tubing
Preparation: Clean the component thoroughly to remove grease or debris.
Cutting: Measure and cut the PTFE tubing, accounting for approximately 5%-10% longitudinal shrinkage.
Positioning: Slide the tubing over the wire or component.
Heating Method:
Best Practice: Use a high-temperature heat gun (capable of >327°C) or a small torch.
Industrial Method: For rollers, use a heat gun, rotate at 6–8 RPM, and maintain a 1.5"–2" distance.
Shrinking Technique:
◎ Apply heat evenly, rotating the component.
◎ Start from the center and work towards the ends to prevent air bubbles.
◎ The tubing will turn from opaque to clear when it reaches its gelatinous state and shrinks.
Cooling and Inspection: Allow the tubing to cool naturally to a milky white color before handling. Inspect for a secure, uniform fit without splits or gaps.
Important Notes:
Safety: Always work in a well-ventilated area because PTFE can emit fumes at high temperatures.
Overheating: Avoid overheating, which can cause the tubing to turn brittle or split.
Caution: Standard electric heat guns may not reach the required temperature for all types of PTFE shrink.
Key Properties & Specifications
PTFE heat shrink tubing offers a unique combination of properties that make it suitable for harsh environments:
Temperature Resistance
It has a wide continuous operating temperature range, from -65°C (-85°F) up to 260°C (500°F). Its melting point is around 320°C (608°F).
Chemical Resistance
It is resistant to almost all common solvents, strong acids, and bases, making it ideal for chemical processing and military applications.
Electrical Insulation
PTFE has excellent dielectric strength, providing reliable electrical insulation for wires and components.
Low Friction/Non-Stick
With the lowest coefficient of friction of any polymer, it is useful in applications where a lubricious surface is needed, such as on actuating levers or as roller covers.
Environmental Protection
It is flame retardant (UL94 V0 and VW-1 ratings), impervious to UV radiation and weather, and provides a tight, moisture-resistant seal.
Biocompatibility
PTFE has a proven history of use in medical devices and can be sterilized using ETO and autoclave protocols.
Common Applications
Due to its robust properties, PTFE heat shrink is used across many industries:
Aerospace & Defense
Used for wire insulation and protection in aircraft and military equipment exposed to extreme temperatures and chemicals.
01
Medical Devices
Ideal for insulating surgical tools, diagnostic equipment, and guide wires, as it withstands sterilization processes.
02
Electronics Manufacturing
Provides high-performance insulation and protection for sensitive electronic components and wire splices.
03
Industrial/Mechanical Systems
Used for covering rollers and other moving parts to provide a non-stick, low-friction surface and protect against abrasion and corrosion.
04
Chemical & Analytical Sciences
Protects sensors and wiring in corrosive environments due to its near-total chemical inertness.
05
Payment&Shipping
|
Packing |
Carton / Pallet / Wooden Box |
|
Shipping method |
By express.By air,By Sea |
|
FOB Port |
Shenzhen |
|
Production time |
Depends on your qty(3~15 days) |
|
OEM/ODM |
Available |
|
Payment |
TT/Ali pay/Ali Assurance |
PTFE Heat Shrink Tube (Ratio 4:1)
|
Inner Diameter |
As Supplies(mm) |
Recovered (mm) |
|
|
Inner Diameter |
Inner Diameter |
Wall Thickness |
|
|
3mm(1/8") |
3.0 +0.8/-0.3 |
≤0.75 |
0.30±0.05 |
|
4.5mm(3/16") |
4.5 +0.8/-0.3 |
≤1.12 |
0.30±0.05 |
|
6mm(1/4") |
6.0 + 0.8/-0.3 |
≤1.50 |
0.30±0.05 |
|
9.5mm(3/8") |
9.5+ 0.5/-0.3 |
≤2.40 |
0.30±0.05 |
