... diaphaneity, 3. Electrical insulation, 4. Anti-corrosion. Characteristics for FEP tube: 1. No sticky, 2. No poison,3. Antilflaming,4. High ... low temperature.Applications for FEP tubes:It’s widely used in:1. Heat exchangers, 2. steam piping, 3. High-purity reagents ... ,5. insulated wiring jacket,6. All-inclusive fluoride O-ring plastic tube. FEP tubes FEP tubes PTFE tubes FEP ,PFA corrugated tubes ...