Silicone Hoses from QSP Products
What is a Silicone Hose?
A silicone hose is a flexible hose made from high-quality silicone rubber, often reinforced with polyester or Kevlar layers to withstand pressure, heat, and mechanical stress. This material remains stable under extreme temperatures and resists aging, oil, antifreeze, and chemical influences. Silicone hoses are available in many variations: from transparent and color-coded to textile or steel-reinforced for higher pressure resistance. Thanks to the material's versatility, the applications are virtually endless.
Main Benefits of Silicone Hoses in Vehicles
1. Exceptional Temperature ResistanceSilicone hoses can withstand temperatures from -60°C to +180°C, with peaks up to 250°C, depending on the composition of the silicone hose. Ideal for use in the cooling system, turbo intercoolers, or exhaust gas recirculation.
2. Pressure Resistance and Shape Retention
Thanks to multiple reinforcements with polyester or aramid, silicone hoses maintain their shape and reliability even under high pressure (such as in turbo lines).
3. Oil and Chemical Resistance
Modern silicone hoses are specially formulated to resist engine oil, coolant, fuel vapors, and other aggressive fluids, depending on the applied inner liner.
4. Flexibility Under Load
Even with prolonged exposure to heat and vibrations, silicone hoses retain their flexibility—essential for systems under constant stress.
5. Long Lifespan and Reduced Maintenance Costs
Compared to conventional rubber hoses, silicone hoses last significantly longer. This leads to lower maintenance and replacement costs, especially in heavy-duty use or motorsports.
6. Professional Appearance
An added benefit: silicone hoses are available in various colors, which is not only functional (for color-coding) but also adds a high-end look.
Applications of Silicone Hoses
Silicone hoses are used across various industries. Key applications include: - Automotive - Appliance and machinery manufacturing - Food industry - Medical and pharmaceutical sectors - Chemical industry
Applications of Silicone Hoses in the Automotive Industry
Silicone hoses are used in almost every type of vehicle, from passenger cars and trucks to motorcycles and race cars.
Key applications include:
Cooling System Hoses
Used to circulate and discharge coolant between the radiator, engine block, and expansion tank. Thanks to their heat and pressure resistance, silicone hoses are more reliable than standard EPDM hose connections.
Intercooler and Turbocharger Hoses
In turbocharged vehicles, these hoses transport compressed air at high temperatures and pressure. A silicone hose with the right reinforcement layers is the ideal choice here.
Vacuum Hoses and Air Lines
Small-diameter silicone hoses are often used for vacuum applications such as EGR systems, brake boosters, or MAP sensors. Their flexibility makes them easy to install, even in tight engine compartments.
Fuel Vapor Systems
Although pure silicone hoses are not suitable for direct contact with fuel, they are excellent for vapor discharge in EVAP systems or as protective sleeving.
Engine Breathers and Crankcase Ventilation
Silicone hoses are resistant to oil vapors and temperature fluctuations, making them ideal for PCV systems (Positive Crankcase Ventilation).
Applications of Silicone Hoses in Appliance and Machinery Manufacturing
Silicone hoses are integrated into machines for fluid or air transport systems, especially where flexibility or high temperatures are involved. There is also a growing demand for silicone hoses for cooling electric vehicles and machinery.
Technical Specifications Silicone Hose
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Material: silicone with polyester reinforcement
• Temperature range: -50°C to +180°C
• Working pressure: depending on diameter and number of layers, see specification table
• Colours: blue and black
• Dimensions: internal
QSP Products silicone hoses comply with:
• ROHS - European Parliament and Council Directive 2011/65/EU on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) with its Amendments (EU) 2015/963.
• REACH - Candidate List of Substances of Very High Concern for authorization published by the European Chemicals Agency (ECHA) Regarding Regulation (EC) No. 1272/2008. 1907/206 concerning REACH including REACH SVHC 247 (released on Jan 21, 2025) SVHC based on Proposal for Identification of Substances of Very High Concern published for Commenting.
Options for silicone tubing available on request:
• FDA applications (food industry)
• UL94 V-0 flame retardant
Large Stock of Silicone Hoses Available
You can find the complete range of silicone hoses on this page. With as many as 18,000 hoses in stock, we can fulfill nearly every order directly from inventory. The silicone hose range is available in two standard colors: blue and black. Our assortment is highly diverse in types and sizes. Think of silicone elbows, silicone couplers, silicone connectors, silicone reducers, silicone vacuum hoses, silicone bellows, silicone T-pieces, and much more.
As a complement to this silicone assortment, we also supply various aluminum couplers, aluminum pipes, aluminum bends, and hose clamps from stock. These products are used to connect the silicone hoses and make your air or water system airtight. For many years, silicone hoses have been used in industries such as automotive, performance, offshore, and industrial sectors. They are commonly used in (cooling) water systems to supply water to the engine and radiator. Hoses are also frequently used as air hoses to connect, for example, an intercooler system or heater system in a vehicle or machine. Silicone hoses are quickly preferred over rubber hoses. The advantages of our hoses compared to rubber ones include better resistance to pressure differences, temperature fluctuations, fluids, and external influences such as ozone and weathering. You will no longer suffer from dry cracks, porous, or hardened hoses.
Since almost every silicone hose is reinforced with multiple layers, they are extremely suitable as turbo hoses or intercooler hoses. These reinforcements are made of polyester, allowing the hose to handle higher pressures without bursting. Please refer to the “Specifications” category to check the maximum pressure your selected hose can withstand. If you’re unsure about your application, feel free to contact us. Our experts are ready to provide proper advice.
Custom Silicone Hoses
In addition to the standard range, it’s also possible to produce specific hose sets to your specifications. This could be a complete set for a car or vehicle, or just one specific hose. Custom-made hoses can also be produced in any desired color. This is ideal if you want to reflect your company colors in a particular project. Please note: this is only practical for larger quantities or sets. Custom hose production always requires molds and drawings, which naturally incur additional costs. That’s why (depending on the hose type) we apply a minimum order quantity per model.
Looking for custom-made hoses? Check out our dedicated page for custom silicone hoses, click here for more information.
