Automotive Silicone Hoses
High-performance silicone hoses for cooling systems, turbocharger connections, intercooler ducting and air intake applications. Manufactured via continuous extrusion and compression moulding using VMQ and FVMQ compounds. Available in straight, elbow and reducer configurations. Operating temperature range from -60°C to +300°C depending on formulation.
Process fundamentals
Automotive silicone hoses replace conventional EPDM rubber ducting in vehicle fluid systems. They absorb engine vibration, accommodate misalignment between components and maintain sealing integrity under repeated thermal and pressure cycling. The multi-layer construction combines inner silicone linings with aramid (Nomex) or polyester textile reinforcement plies that provide pressure resistance and dimensional stability.
Materials and formulations
Available in standard VMQ silicone, high tear strength, high temperature or FVMQ fluorosilicone grades. Hardness range 30 to 85 Shore A. Application-specific formulations for coolant, compressed air, oil or steam service. Operating temperature range -60°C to +300°C depending on compound selection.
Configuration options
Straight hoses, elbows (45°, 90°, 135°, 180°), straight and angled reducers, T/Y branches, flexible hoses with helical wire reinforcement and blanking caps. Internal diameters from 6 to 150 mm. Tolerances to ISO 3302-1: extruded E1, moulded M2. Standard black finish or custom RAL colours. Matt or gloss surface texture.
Production environment
Manufactured in an industrial environment with quality control to ISO 9001. Full batch traceability and dimensional validation. Dedicated tooling for complex geometries.
Product Gallery
Key Technical Data
Typical values obtained according to series datasheets and indicated standards. May vary based on hardness, formulation, and raw material. Final validation is the customer's responsibility.
| Property | Typical Values | Standard |
|---|---|---|
| Hardness (Shore A) | 20 – 90 | ISO 7619-1 |
| Tensile Strength | 6 – 12 MPa | ISO 37 |
| Elongation at Break | 200 – 600 % | ISO 37 |
| Tear Resistance | 15 – 30 kN/m | ISO 34-1 |
| Density | 1,11 – 1,20 g/cm³ | ISO 2781 |
| Working Temperature | –60…+250 °C | — |
| Tolerances | Extrusión E1–E3 · Longitudes L2–L3 | ISO 3302-1/-2 |
Certifications and Regulatory Compliance in Silicone Extrusion
Every extrusion process is backed by international certifications that guarantee traceability, safety, and regulatory conformity in highly demanding sectors.
Main Certifications
- ISO 9001:2015 – Quality Management
- ISO 13485:2016 – Medical Devices
- EN 9100 – Aerospace
- GMP – Good Manufacturing Practices
- Validated ISO 8 Cleanroom (550 m², ISO 14644-1 to -7)
Regulatory Compliance
- FDA 21 CFR 177.2600 – Food Contact
- EC 1935/2004 – Materials in Contact with Food
- EN 45545-2 – Railway Fire Protection
- UL94 – Material Flammability
- ISO 10993 and USP Class VI – Medical and Pharmaceutical Biocompatibility
- REACH (1907/2006) and RoHS (2015/863) – Chemical and Electrical Substances
Main Application Sectors
Key Applications
-
Upper and lower radiator hoses
-
Thermostat housing and bypass connections
-
Cabin heater circuit
-
Expansion tank connections
-
Turbocharger outlet hoses
-
Turbo-to-intercooler connections
-
Intercooler-to-intake manifold hoses
-
Air intake ducting
-
Air filter to throttle body connections
-
EGR system hoses
-
Brake servo vacuum lines
-
Vacuum circuits for actuators and solenoid valves
-
Turbocharger oil return lines
-
Crankcase ventilation (PCV)
-
Oil-water heat exchanger connections
-
Power steering hoses
-
Battery cooling ducts (electric vehicles)
-
Auxiliary reservoir connections
-
Twin-turbo boost system hoses
-
Blow-off valve and wastegate bypass connections
-
Pressure and temperature sensor connections
-
Water/methanol injection system hoses
-
Inverter cooling ducts (electric vehicles)
-
Air conditioning circuit hoses (low pressure side)
-
Flexible connections for vibration isolation
Manufacturing and Delivery Options
- Minimum order quantity: From 100 units for standard geometries
- Lead time: 2-4 weeks depending on complexity and quantity
- Tooling: Dedicated moulds for elbow and reducer geometries
- Customisation: RAL colours, laser marking, OEM labelling
- Certifications: Available on request per customer specification
Recommended Related Products
Product Selection Matrix
| Customer Requirement | Recommended Solution |
|---|---|
| Standard automotive hoses | manguitos |
| Custom OEM designs | Specialty Tubing |
| Pressure or vacuum rated tubing | Reinforced Hoses/Tubing |
Technical Conclusion and Recommendations
Progress Silicones automotive silicone hoses deliver superior thermal and chemical performance compared to conventional EPDM rubber.
Each hose is manufactured using formulations specific to its operating environment: VMQ for cooling and intake systems, FVMQ for oil circuits, high-temperature grades for turbo and exhaust proximity applications.
A technical solution for OEM manufacturers, performance specialists and distributors requiring high-performance components with extended service life.
Need a Technical Silicone Solution?
Our team is ready to analyze your case and design a custom-tailored technical response.
Contact Us