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Tubos de alta temperatura · conductos de aire caliente, sistemas de extracción y aire de combustión
High-temperature extrusion

High-temperature silicone tubing

Silicone tubes and hoses with thermal stability above the standard formulations. Continuous service up to +300 °C with peaks of +315 °C. Dedicated formulations for industrial ovens, autoclaves, vulcanising equipment and hot-process machinery.

Contact usView technical specifications
Max. temperature+300 °C continuous · +315 °C peaks
Hardness40–70 Shore A
CertificationsFDA (depending on formulation)
Full range–60 °C to +300 °C

The +300 °C figure refers to Series 9 (native formulation). Series 2 and 12 reach +300 °C / +315 °C with HT additive. Consult formulation depending on requirements.

The product

Above +200 °C standard VMQ silicone degrades; Series 9 formulations (+300 °C native) and Series 20 (+270 °C with high tear strength) hold their properties under continuous service.

Standard VMQ silicones (Series 2, Series 12) hold their mechanical properties up to +200 °C under continuous service. Above that temperature, the polymer chain degrades progressively: the tube hardens, loses elasticity, cracks and eventually fails. When the operating temperature exceeds +200 °C, a formulation designed specifically for sustained thermal stability is required.

Tubo de silicona de alta temperatura
Tubo de silicona de alta temperatura
Tubo de silicona de alta temperatura
Tubo de silicona de alta temperatura tras postcurado
Tubo de silicona de alta temperatura

Specifications

Dimensional tolerance
ISO 3302-1 · class E1 / E2 · lengths L2
Inner diameter
2 to 100 mm · wall thickness from 1 to 8 mm
Continuous temperature
+200 °C (standard) · +230 °C (Series 7) · +270 °C (Series 20) · +300 °C (Series 9)
Peak temperature
+315 °C with Series 9 or standard + HT additive
Hardness
40 to 70 Shore A
Post-curing
Oven post-curing required to reach nominal thermal stability
Management system
ISO 9001:2015
Food contact
FDA 21 CFR 177.2600 (Series 9 · Series 12 with compatible HT additive)
Restricted substances
REACH (1907/2006) · RoHS (2015/863)
Construction

The type of HT tube is defined by the formulation and by the presence of reinforcement or additive

Construction

  • 01Single layer
  • 02Braid-reinforced
  • 03High tear
  • 04HT additive
Materials

Formulations for continuous high-temperature service

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 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)

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 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)
Tubo de silicona de alta temperatura tras postcurado
Thermal post-curing

Nominal thermal stability is reached in the oven, after extrusion

High-temperature formulations use peroxide curing, which leaves volatile residues after vulcanising. Static oven post-curing at controlled temperature and time — specific to each series — removes those residues and stabilises the polymer structure. Without this step, mechanical properties at high temperature degrade prematurely and the tube does not reach its nominal service life.

Each batch is supplied with formulation identification, maximum service temperature and a conformity certificate with full process traceability, including extrusion and post-curing parameters.

Services and processes

Processes that support HT tube extrusion

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

Industrial silicone tubing Product Industrial silicone tubing Learn more → Reinforced silicone tubing Product Reinforced silicone tubing Learn more → Automotive silicone hoses Product Automotive silicone hoses Learn more → Custom silicone profiles Product Custom silicone profiles Learn more →
Need a high-temperature silicone tube?

Tell us the continuous service temperature and the peaks, the required diameter, the conveyed fluid and whether there is any additional mechanical loading — pressure, vibration, abrasion. We confirm the most suitable formulation and the estimated service life for your application.

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