As a leading FEP shrink tubing supplier and manufacturer in China, we ensure precision manufacturing for consistent quality and performance.
Our tubing provides a reliable, conformal seal that protects against harsh chemicals, extreme temperatures, and mechanical stress, ensuring the longevity and reliability of your critical components.
Shenzhen Forbest’s FEP Shrink Tubing represents the pinnacle of fluoropolymer protection technology, engineered to safeguard critical components where standard materials fall short.
Designed with uncompromising precision, our FEP (Fluorinated Ethylene Propylene) heat shrink tubing delivers unparalleled performance in the most aggressive environments.
At the core of our product is exceptional chemical resistance. FEP tubing provides an inert barrier against a vast spectrum of aggressive substances including strong acids, bases, solvents, fuels, and oils.
This makes it indispensable for applications in chemical processing, oil & gas, and medical instrumentation where material integrity is non-negotiable.
Unlike polyolefin alternatives, FEP will not swell, crack, or degrade upon chemical exposure, ensuring long-term reliability.
Complementing its chemical resilience is outstanding thermal performance. Our tubing operates reliably from cryogenic temperatures as low as -80°C to continuous high temperatures of +200°C.
This broad range allows it to perform seamlessly in applications subjected to extreme thermal cycling, such as near engine compartments, aerospace systems, and downhole equipment.
The material maintains its mechanical properties and dielectric strength throughout this range, preventing failure under thermal stress.
The ultra-smooth, low-friction surface of Forbest’s FEP shrink tubing is another defining advantage.
This non-stick, non-porous finish prevents the adhesion of contaminants, epoxy, or solder splatter, making it perfect for protecting sensitive sensors, creating clean medical device assemblies, or facilitating smooth movement in mechanical applications.
Furthermore, it exhibits excellent electrical insulation properties and inherent flame retardancy, typically meeting UL 224 VW-1 standards for safety-critical applications.
As a dedicated FEP shrink tubing factory in China, Shenzhen Forbest combines advanced polymer technology with stringent quality control.
Our commitment is to provide not just a product, but a tailored protective solution that enhances the durability, safety, and performance of your designs.
Material Comparison: FEP vs. Common Alternatives
Understanding the distinct advantages of FEP requires comparing it to other commonly used materials like Polyolefin and PTFE.
| Property / Material | FEP Shrink Tubing (Forbest) | Standard Polyolefin | PTFE (Teflon™, Non-Shrink) |
|---|---|---|---|
| Max Continuous Temp. | +200°C | +135°C | +260°C |
| Min Temp. Flexibility | -80°C | -55°C | -260°C |
| Chemical Resistance | Excellent (Virtually Inert) | Fair to Poor | Superior (The Best) |
| Surface & Friction | Ultra-Smooth, Non-Stick, Low Friction | Slightly Textured | Smooth, Non-Stick |
| Flame Retardancy | VW-1 (Excellent) | VW-1 | Poor |
| Shrink Capability | Yes (2:1, 3:1, 4:1 Ratios) | Yes | No |
| Dielectric Strength | Excellent | Very Good | Excellent |
| Primary Advantage | Perfect Balance: Shrinkable + Hi-Temp + Chem Resistance + Flame Retardant | Cost-effective for benign environments | Highest temperature rating, but cannot shrink. |
| Best For | High-reliability wiring, chemical-laden environments, medical tools, aerospace. | Consumer electronics, general-purpose insulation. | Non-shrink insulation, liners, extremely high-temp static parts. |
| 1.3 : 1 FEP FEP Heat shrink tube AWG Specification | ||||||||
| Size | ID before Shrink ( D) | Full Shrink Size | ||||||
| ID After Shrink (d) | Wall thickness ( W) | |||||||
| Standard | Tolerance ( ± ) | |||||||
| INCH | MM | INCH | MM | INCH | MM | INCH | MM | |
| 13 | 0.075 | 1.905 | 0.061 | 1.549 | 0.009 | 0.229 | 0.002 | 0.051 |
| 12 | 0.092 | 2.337 | 0.072 | 1.829 | 0.009 | 0.229 | 0.002 | 0.051 |
| 11 | 0.115 | 2.921 | 0.089 | 2.261 | 0.009 | 0.229 | 0.002 | 0.051 |
| 10 | 0.141 | 3.581 | 0.114 | 2.896 | 0.010 | 0.254 | 0.003 | 0.076 |
| 9 | 0.158 | 4.013 | 0.124 | 3.150 | 0.010 | 0.254 | 0.003 | 0.076 |
| 8 | 0.180 | 4.572 | 0.143 | 3.632 | 0.010 | 0.254 | 0.003 | 0.076 |
| 7 | 0.197 | 5.004 | 0.158 | 4.013 | 0.011 | 0.279 | 0.004 | 0.102 |
| 6 | 0.225 | 5.715 | 0.180 | 4.572 | 0.011 | 0.279 | 0.004 | 0.102 |
| 5 | 0.248 | 6.299 | 0.198 | 5.029 | 0.011 | 0.279 | 0.004 | 0.102 |
| 4 | 0.290 | 7.366 | 0.226 | 5.740 | 0.011 | 0.279 | 0.004 | 0.102 |
| 3 | 0.310 | 7.874 | 0.249 | 6.325 | 0.011 | 0.279 | 0.004 | 0.102 |
| 2 | 0.365 | 9.271 | 0.280 | 7.112 | 0.012 | 0.305 | 0.004 | 0.102 |
| 1 | 0.400 | 10.160 | 0.311 | 7.899 | 0.012 | 0.305 | 0.004 | 0.102 |
| 0 | 0.400 | 11.176 | 0.349 | 8.865 | 0.012 | 0.305 | 0.004 | 0.102 | ||
| Sizes | ID Before Shrink(D) | Full shrink sizes | ||||||||
| Max ID(d) | Wall thickness | |||||||||
| Standard | Tolerance ( ± ) | |||||||||
| Inch | Inch | （mm） | Inch | mm | Inch | mm | inch | mm | Inch | mm |
| 3/8 | 0.375 | 9.53 | 0.500 | 12.700 | 0.383 | 9.728 | 0.015 | 0.381 | 0.004 | 0.102 |
| 7/16 | 0.438 | 11.11 | 0.580 | 14.732 | 0.448 | 11.379 | 0.020 | 0.508 | 0.004 | 0.102 |
| 1/2 | 0.500 | 12.70 | 0.666 | 16.916 | 0.510 | 12.954 | 0.020 | 0.508 | 0.004 | 0.102 |
| 5/8 | 0.625 | 15.88 | 0.830 | 21.082 | 0.637 | 16.180 | 0.025 | 0.635 | 0.004 | 0.102 |
| 3/4 | 0.750 | 19.05 | 1.000 | 25.400 | 0.764 | 19.406 | 0.030 | 0.762 | 0.004 | 0.102 |
| 7/8 | 0.875 | 22.23 | 1.170 | 29.718 | 0.891 | 22.631 | 0.035 | 0.889 | 0.004 | 0.102 |
| 1 | 1.000 | 25.40 | 1.330 | 33.782 | 1.020 | 25.908 | 0.035 | 0.889 | 0.004 | 0.102 |
| 1-1/8 | 1.125 | 28.58 | 1.500 | 38.100 | 1.145 | 29.083 | 0.035 | 0.889 | 0.004 | 0.102 |
| 1-1/4 | 1.240 | 31.75 | 1.666 | 42.316 | 1.270 | 32.258 | 0.035 | 0.889 | 0.004 | 0.102 |
| 1-3/8 | 1.375 | 34.93 | 1.833 | 46.558 | 1.390 | 35.306 | 0.035 | 0.889 | 0.004 | 0.102 |
| 11/2 | 1.500 | 38.10 | 2.000 | 50.800 | 1.570 | 39.878 | 0.035 | 0.889 | 0.004 | 0.102 |
| FEP Heat shrink tube 1.6 : 1 Shrink ratio Specification | ||||||||||
| ID Before
Shrink ( D) |
Full shrink size | |||||||||
| ID after shrink (d) | Wall thickness | |||||||||
| Tolerance ( ± ) | ||||||||||
| Inch | Inch | （mm） | Inch | mm | Inch | mm | Inch | mm | Inch |
mm |
|
3/32 |
0.094 |
2.38 |
0.094 |
2.38 |
0.056 |
1.422 |
0.008 |
0.203 |
0.003 |
0.076 |
|
1/8 |
0.125 |
3.18 |
0.125 |
3.18 |
0.075 |
1.905 |
0.010 |
0.254 |
0.003 |
0.076 |
|
3/16 |
0.188 |
4.76 |
0.188 |
4.76 |
0.115 |
2.921 |
0.010 |
0.254 |
0.003 |
0.076 |
|
1/4 |
0.250 |
6.35 |
0.250 |
6.35 |
0.150 |
3.810 |
0.010 |
0.254 |
0.003 |
0.076 |
|
3/8 |
0.375 |
9.53 |
0.375 |
9.53 |
0.225 |
5.715 |
0.012 |
0.305 |
0.003 |
0.076 |
| 1/2 | 0.500 | 12.70 | 0.500 | 12.70 | 0.300 | 7.620 | 0.015 | 0.381 | 0.004 | 0.102 |
| 3/4 | 0.750 | 19.05 | 0.750 | 19.05 | 0.450 | 11.430 | 0.020 | 0.508 | 0.004 | 0.102 |
| 1 | 1.000 | 25.40 | 1.000 | 25.40 | 0.600 | 15.240 | 0.025 | 0.635 | 0.005 | 0.127 |
|
1-1/2 |
1.500 |
38.10 |
1.500 |
38.10 |
0.900 |
22.860 |
0.030 |
0.762 |
0.005 |
0.127 |
| 2 | 2.000 | 50.80 | 2.000 | 50.80 | 1.200 | 30.480 | 0.030 | 0.762 | 0.005 | 0.127 |
Conclusion: Shenzhen Forbest’s FEP Shrink Tubing is the optimal engineered solution when your application demands a heat-shrinkable material capable of withstanding high temperatures, aggressive chemicals, and requiring certified flame retardancy. It uniquely bridges the performance gap between polyolefin and PTFE.
(Technical Parameter Table)
| Parameter | Typical Value / Specification | Test Standard |
|---|---|---|
| Base Material | Fluorinated Ethylene Propylene (FEP) | – |
| Continuous Operating Temp. | -80°C to +200°C | – |
| Shrink Initiation Temperature | ~ 150°C | – |
| Full Shrink Temperature | ~ 175°C | – |
| Standard Shrink Ratios | 1.3:1, 1.6:1 | – |
| Certifications | RoHS Compliant, REACH SVHC Compliant, | *Refer to specific UL file |
Application Guide:
-
Select a tubing size with a Supplied I.D. larger than the object’s largest diameter.
-
Slide the tubing into position.
-
Apply heat evenly using a controlled heat gun, oven, or suitable method until the tubing shrinks uniformly to form a tight, protective seal. Avoid direct flame and overheating.
Partner with Shenzhen Forbest, your expert FEP shrink tubing manufacturer and supplier from China, for reliable, high-performance protection solutions.
Contact us today for technical consultation, custom quotes, or to request product samples.