Reinforcement Selection Guide

Reinforcement Selection Guide

– Polyester / Aramid / Nomex

Introduction

There is polyester fabric in the middle layers of silicone hoses. The silicone hose fabric can acts as a reinforcement fo the silicone hoses. the fabric material is always polyester. it is always calendered together with silicone hose rubber.

Reinforcement is critical to mechanical strength, pressure endurance, and dimensional stability. HOTOP provides guidance on material selection based on application needs.

Common Reinforcement Types

»Polyester – Good flexibility, medium strength, general automotive and industrial use. Working temperature -50C to +180C.

»Aramid– High tensile strength, excellent thermal stability, for high-pressure or turbo applications, high-temperature working silicone hose option.Working temperature -50C to +280C.

»Nomex– High heat resistance, fire retardant, for extreme temperature or hydrogen

applications.Working temperature -50C to +300+C.

silicone hose fabric-Polyester

silicone hose fabric-Aramid

Material Selection Guidelines

»Pressure Requirements – Higher pressure → stronger fibers (Aramid, Nomex)

»Temperature Range – High temp → Nomex or Aramid

»Flexibility Needs – Tight bends → Polyester preferred

»Chemical Exposure – Ensure fiber compatibility with silicone and fluids

HOTOP Engineering Considerations

»Multi-ply reinforcement design for optimal pressure resistance

»Fiber orientation tuned for vibration and fatigue resistance

»Bonding to silicone compound carefully controlled

Typical Applications

»Turbocharger hoses → Aramid

»EV cooling loops → Polyester

»Hydrogen fuel cell hoses → Nomex or Aramid

»High-temperature industrial hoses → Nomex

Conclusion

Reinforcement selection is essential for silicone hose performance. HOTOP engineers design application-specific reinforcement to ensure durability, flexibility, and reliability.