- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
FEP corrugated tubes are a high-performance solution for wire harness protection, insulation, and routing, especially in harsh working environments. Made of fluorinated ethylene propylene (FEP), a premium fluoroplastic, these corrugated tubes combine excellent chemical resistance, high-temperature stability, flexibility, and transparency, making them indispensable in automotive, industrial, medical, laboratory, and new energy applications. This complete guide covers material characteristics, type differentiation, size selection, step-by-step installation, pro tips, and common mistakes to help you maximize the performance of FEP corrugated tubes and ensure long-lasting protection for your wire harnesses.
FEP corrugated tube is a flexible, corrugated pipeline made of fluorinated ethylene propylene (FEP), a copolymer of tetrafluoroethylene and hexafluoropropylene that belongs to the fluoroplastic family. Its unique molecular structure endows it with a combination of superior properties that ordinary corrugated tubes (such as PVC, PE) cannot match, making it ideal for wire harness protection in harsh conditions.
Excellent Chemical Resistance – Almost inert to most strong acids, alkalis, oxidants, and organic solvents, it can resist corrosion from sulfuric acid, sodium hydroxide, and other corrosive media, making it suitable for chemical, pharmaceutical, and industrial fields where corrosive substances exist.
Wide Temperature Stability – It can maintain stable performance in a wide temperature range of -80°C to 200°C, and can withstand short-term high temperatures of up to 260°C, adapting to high-temperature working environments such as automotive engine compartments and industrial equipment cabins.
High Transparency – With a light transmittance of more than 90%, it allows real-time observation of the internal wire harness status, facilitating inspection and maintenance, which is an absolute advantage compared to opaque PTFE corrugated tubes.
Superior Flexibility & Fatigue Resistance – The corrugated structure and FEP material’s inherent flexibility enable it to have excellent bending performance, with a minimum bending radius of 5 times the pipe diameter, adapting to complex routing and equipment vibration scenarios without easy cracking or damage.
Excellent Electrical Insulation – With a low dielectric constant (about 2.1) and high surface resistance, it provides reliable insulation protection for wire harnesses, suitable for high-frequency circuit components and electronic equipment wiring.
High Cleanliness & Non-stickiness – It has a low surface energy, smooth inner wall, no medium residue, no wall adhesion, and is compliant with FDA and ROHS certifications, making it suitable for medical, food, and semiconductor fields with high cleanliness requirements.
