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Manguitos de silicona para automoción
Automotive

Automotive silicone hoses

Extruded and formed silicone hoses for engine bay connections. Straight, bent, reducer and OEM-drawn shapes. Dedicated formulations for each circuit: high temperature for turbo, coolant resistance, fluorosilicone for oil.

Contact usView technical specifications
Temperature–60 °C to +300 °C · depending on series
Inner diameterØ 8 to 120 mm
Hardness40–70 Shore A
ReinforcementTextile or aramid available

Straight hoses, 45° / 90° / 135° / 180° elbows, reducers and OEM-drawn shapes. Embedded textile reinforcement available for boost-pressure applications.

The product

In the engine bay, connection hoses operate under conditions that destroy conventional elastomers.

Turbo gas temperatures above +200 °C, constant thermal cycling between ambient and service temperature, contact with coolant containing aggressive additives, proximity to oils and fuels, and permanent vibration. EPDM rubber hoses harden and crack under thermal cycling; nitrile ones cannot handle the temperatures. VMQ silicone retains its flexibility and mechanical properties from –60 to +200 °C, with no degradation from UV, ozone or thermal ageing — and with high-temperature formulations (Series 9, Series 20) that range extends to +300 °C.

Manguito de silicona para automoción
Manguito de silicona para automoción
Manguito de silicona para automoción
Manguito de silicona para automoción
Manguito de silicona para automoción

Specifications

Dimensional tolerance
ISO 3302-1 · class E1 / E2 · lengths L2
Inner diameter
8 to 120 mm · thicknesses and wall depending on formulation and reinforcement
Geometries
Straight · 45° / 90° / 135° / 180° elbow · reducer · compound shape to drawing
Hardness
40 to 70 Shore A (depending on circuit)
Service temperature
–60 °C to +200 °C · up to +300 °C with Series 9 / Series 20
Optional reinforcement
Textile braid (polyester) or aramid embedded between layers
Management system
ISO 9001:2015
Restricted substances
REACH (1907/2006) · RoHS (2015/863)
Circuits

The hose formulation is chosen according to the vehicle circuit it is intended for

Circuit

  • 01Turbo
  • 02Cooling
  • 03Intake
  • 04OEM
Materials

Formulations by engine-bay circuit

Series 9 – Peroxide-cure silicone with excellent thermal resistance (300°C)

Series 9 is a peroxide-cured silicone compound formulated specifically to deliver excellent thermal stability.

Shore A hardness40 – 68
Temperature range-60 °C / 300 °C
Peak temperature315 °C
Density (g/cm³)1.11 – 1.20
Tensile strength (MPa)6.0 – 8.0
Elongation at break (%)300 – 400
Tear strength (kN/m)12.0 – 17.0
Curing systemPeroxide
Processing methodExtrusion and Moulding
Base colourNatural / Transparent
Available coloursRAL colours on request

Applications

  • Profiles, industrial oven equipment, moulded parts and extreme thermal applications.

Certifications and technical standards

  • FDA 21 CFR §177.2600
  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)

Series 20 – Peroxide silicone with high tear and high thermal resistance (270°C)

Series 20 is a peroxide-cured silicone compound that combines two critical properties: excellent tear strength and high thermal stability.

Shore A hardness45 – 70
Temperature range-60 °C / 270 °C
Density (g/cm³)1.12 – 1.20
Tensile strength (MPa)7.0 – 8.0
Elongation at break (%)400 – 550
Tear strength (kN/m)30.0 – 36.0
Curing systemPeroxide
Processing methodExtrusion and Moulding
Base colourNatural / Transparent

Applications

  • Inflatable gaskets, profiles, high-temperature moulded parts.

Certifications and technical standards

  • FDA 21 CFR §177.2600
  • RoHS compliant
  • REACH compliant

Series 14 – Enhanced peroxide silicone for steam and fluid resistance

Series 14 is a peroxide-cured silicone compound formulated specifically to improve resistance to water steam, coolant fluids and oils.

Shore A hardness60 – 70
Temperature range-60 °C / 200 °C
Density (g/cm³)1.16 – 1.20
Tensile strength (MPa)8.0 – 8.0
Elongation at break (%)300 – 360
Tear strength (kN/m)15.0 – 18.0
Curing systemPeroxide
Processing methodExtrusion and Moulding
Base colourNatural / RAL colours
Available coloursRAL colours on request

Applications

  • Autoclave gaskets, parts in contact with steam or coolants.

Certifications and technical standards

  • FDA 21 CFR §177.2600
  • BfR IX and XV
  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)

Series 2 – Peroxide-cure silicone for general and food-grade use

Series 2 is a peroxide-cured silicone compound designed for versatile processing by extrusion and moulding.

Shore A hardness10 – 90
Temperature range-60 °C / 200 °C
Peak temperature315 °C
Density (g/cm³)1.07 – 1.23
Tensile strength (MPa)3.5 – 9.5
Elongation at break (%)125 – 950
Tear strength (kN/m)10.0 – 23.0
Curing systemPeroxide
Processing methodExtrusion and Moulding
Base colourNatural / Transparent
Available coloursRAL colours on request

Applications

  • Tubes (Øint 0.5–145 mm), profiles (cords, square, rectangular), moulded parts and varied industrial applications.

Certifications and technical standards

  • FDA 21 CFR 177.2600
  • BfR IX and XV
  • CE 1935/2004 (Food contact)
  • ISO 10993 (medical grade depending on formulation)
  • USP Class VI
  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)

Series 12 – Platinum-cure silicone with strong mechanical properties and versatility

Series 12 is a platinum-cured silicone compound processable by extrusion and moulding, recognised for its strong mechanical properties.

Shore A hardness20 – 90
Temperature range-60 °C / 200 °C
Peak temperature315 °C
Density (g/cm³)1.11 – 1.20
Tensile strength (MPa)6.0 – 9.0
Elongation at break (%)100 – 1000
Tear strength (kN/m)17.0 – 30.0
Curing systemPlatinum
Processing methodExtrusion and Moulding
Base colourNatural / Transparent
Available coloursRAL colours on request

Applications

  • Tubes (Øint 0.5–145 mm), profiles (cords, square, rectangular), moulded parts and industrial or medical applications.

Certifications and technical standards

  • FDA 21 CFR §177.2600
  • BfR IX and XV
  • CE 1935/2004
  • ISO 10993 (depending on formulation)
  • USP Class VI
  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)

Series 13 – Fluorosilicone (FVMQ) with high resistance to oils and solvents

Series 13 is a fluorosilicone blend (FVMQ base) catalysed with peroxide, designed specifically to provide exceptional resistance to mineral oils, fuels and organic solvents.

Shore A hardness40 – 70
Temperature range-60 °C / 170 °C
Density (g/cm³)1.40 – 1.46
Tensile strength (MPa)6.0 – 7.0
Elongation at break (%)160 – 400
Tear strength (kN/m)10.0 – 21.0
Catalysis typePeroxide
Processing methodExtrusion and moulding
Base colourNatural / Transparent
Available coloursRAL colours on request

Applications

  • Profiles, moulded parts and special components for environments with oils or solvents.

Certifications and technical standards

  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)

Series 7 – Peroxide silicone with high tear and abrasion resistance

Series 7 is a peroxide-cured silicone compound designed to deliver superior mechanical properties, specifically high tear strength and good abrasion resistance.

Shore A hardness60 – 70
Temperature range-60 °C / 230 °C
Density (g/cm³)1.19
Tensile strength (MPa)6.9 – 8.0
Elongation at break (%)400 – 400
Tear strength (kN/m)30.0 – 35.0
Curing systemPeroxide
Processing methodExtrusion and Moulding
Base colourNatural / Transparent
Available coloursRAL colours on request

Applications

  • Inflatable gaskets, profiles, moulded parts and industrial bellows.

Certifications and technical standards

  • FDA 21 CFR §177.2600
  • RoHS compliant
  • REACH compliant
  • NF ISO 7619-1
  • NF ISO 37
  • NF ISO 34-1
  • NF ISO 2781
  • ISO 3302 (M2/E1/L2)
Manguito conformado sobre mandril con geometría OEM
Mandrel forming

Each hose is vulcanised in its final shape, not bent afterwards

The tube is extruded and placed on a metal mandrel with the final geometry — straight, bent, reducer, compound curve — before vulcanising. The silicone takes that shape permanently, which allows the cross-section and geometry to be held under service temperature and pressure with no need for additional clamps or auxiliary parts.

For OEM runs, we machine a dedicated mandrel from the customer's drawing in 2–4 weeks and reuse it for all subsequent runs. For boost-pressure applications, one or several layers of textile or aramid mesh are embedded between silicone layers during forming.

Services and processes

Processes that support hose manufacturing

Cut-to-length Service Cut-to-length Learn more → Seal vulcanising Service Seal vulcanising Learn more → Extrusion Process Extrusion Learn more → Design and tooling Process Design and tooling Learn more →
Catalogue

Other silicone tubes in the catalogue

High-temperature tubing Product High-temperature tubing Learn more → Reinforced silicone tubing Product Reinforced silicone tubing Learn more → Industrial silicone tubing Product Industrial silicone tubing Learn more → Custom silicone profiles Product Custom silicone profiles Learn more →
Need an automotive silicone hose?

Tell us the target circuit, the required geometry (or attach a drawing) and the temperature and pressure conditions. We confirm the suitable formulation and reinforcement, and prepare quotation and mandrel lead time if it is a new OEM geometry.

Email
info@prosilicones64.com
Form
Request a quote