Certified Standards For Silicone Coolant Hose
Features of Legensilico Silicone Coolant Hose
- UV- and ozone-resistant
- Sturdy and durable construction
- Suitable for a wide range of pressures
- Resistant to hardening, cracking, and low-temperature leaks
- Resistant to aging and various chemicals
- Features a thick silicone inner lining
- Offers higher flow rates and better lubricity than rubber
Legensilico-Your Trusted Silicone Coolant Hose Manufacturer in China
Legensilico is a custom manufacturer specializing in the extrusion and compression molding of high-performance silicone cooling hoses. Our silicone cooling hoses are specifically designed for automotive cooling systems, trucks, race cars, industrial equipment, agricultural machinery, and other applications in harsh operating conditions.
Our silicone coolant hoses are resistant to sunlight, moisture, steam, hardening, cracking, ozone degradation, dust, aging, and a wide range of pressures. We offer custom silicone coolant hoses in a variety of sizes, shapes, wall thicknesses, reinforcement structures, and colors. You can also choose from a variety of fitting types, including straight fittings, reducers, 90° elbows, 45° elbows, 135° elbows, 180° elbows, and hump-style straight fittings.
From prototype development and custom tooling to mass production, Legensilico fully supports OEM and ODM projects through our direct-from-factory capabilities.
Send us your drawing, sample, dimensions, or application requirements for a custom quotation.
Silicone Coolant Hoses in Different Shapes
Legensilico offers different shapes of silicone coolant hoses. Custom shapes are available to ensure a better fit for your specific application.
Straight silicone coolant hoses are commonly used to connect components within automotive and industrial cooling systems. They can be manufactured in custom diameters and lengths.
Silicone elbow hoses provide angled connections where straight hoses cannot meet installation requirements. Common configurations include 45° and 90° elbows, with custom angles available.
Silicone reducer hoses connect components with different diameters. They can be customized with different inlet and outlet sizes according to the cooling-system layout.
Reinforced silicone coolant hoses feature additional reinforcement layers to improve dimensional stability and pressure-handling capability. The reinforcement structure can be selected according to application requirements.
U-shaped silicone coolant hoses are designed for cooling-system connections that require a smooth U-shaped bend. They provide flexibility, temperature stability, and reliable coolant transfer while simplifying hose routing in confined spaces.
S-shaped silicone coolant hoses are designed for cooling systems with offset or complex connection points. Their curved S-shaped construction helps accommodate changes in direction while maintaining flexible and reliable coolant flow.
Blue silicone coolant hose provides reliable coolant transfer while offering excellent flexibility, temperature resistance, and weather resistance. It is commonly used in automotive, racing, and industrial cooling systems.
Flexible silicone coolant hose is designed for cooling systems that require easy routing around bends, tight spaces, and complex connections. Its flexible construction helps simplify installation while maintaining reliable performance.
Different Sizes of Silicone Coolant Hoses
Various sizes are available to match different cooling system requirements.
8mm silicone coolant hose is a compact, flexible solution for coolant transfer in automotive and industrial cooling systems. It offers good temperature stability, durability, and resistance to ozone and weathering.
10mm silicone coolant hose is designed for reliable coolant transfer in automotive, machinery, and industrial cooling applications. It combines flexibility, thermal stability, and durability for demanding operating environments.
12mm silicone coolant hose is designed for coolant transfer in automotive, industrial, and machinery cooling systems. It combines flexibility, temperature resistance, and durability, with custom lengths and reinforcement available.
16mm silicone coolant hose provides a durable and flexible solution for coolant circulation in automotive and industrial applications. It can be customized in length, wall thickness, reinforcement, color, and other specifications.
Why Choose Legensilico Silicone Coolant Hoses?
High-Temperature Resistance
Silicone coolant hoses are specifically designed to maintain flexibility and dimensional stability in high-temperature environments, making them ideal for cooling systems exposed to engine heat and frequent thermal cycling.
Reinforced Construction
For applications requiring higher pressure resistance and structural stability, we can manufacture silicone coolant hoses with multiple reinforcement layers. The hose structure can be customized to meet specific application requirements.
Flexible and Durable
Silicone offers excellent flexibility while ensuring dimensional stability during installation and operation. Its superior resistance to ozone, weathering, and aging makes silicone hoses ideal for demanding automotive and industrial applications.
How We Turn Silicone Into Reliable Products
We support customized silicone products from mold design and material selection to mass production and final quality inspection.
- Manufacturing Process
- Specifications
- Silicone vs. Rubber Coolant Hose
- Silicone vs. EPDM Coolant Hose
| Material | Silicone |
| Hose Construction | Single-layer or Reinforced |
| Hose Type | Straight, Elbow, Reducer, U-Shaped, S-Shaped, Custom |
| Inner Diameter | 6mm – 154mm (customizable) |
| Outer Diameter | Custom |
| Wall Thickness | 4mm / 4.5mm / 5mm / 6mm or custom |
| Length | Custom |
| Hardness | Custom |
| Operating Temperature | -54°C to +149°C |
| Working Pressure | Application-dependent |
| Burst Pressure | Application-dependent |
| Connection | Straight or Custom Geometry |
| Color Options | Black, Blue, Red, Green or Custom |
| Manufacturing Process | Silicone Extrusion / Molding |
| Certifications | IATF 16949, ISO 9001, ISO 14001, REACH, ROHS |
| Feature | Silicone Coolant Hose | Rubber Coolant Hose |
| Temperature Resistance | Excellent | Good to Excellent, depending on compound |
| Flexibility | Excellent | Good |
| Thermal Stability | Excellent | Good |
| Ozone & Weather Resistance | Excellent | Varies by rubber type |
| Aging Resistance | Excellent | Good |
| Vibration Resistance | Good | Good |
| Custom Colors | Wide range | More limited |
| Custom Shapes | Available | Available |
| Reinforcement | Available | Available |
| Initial Cost | Generally higher | Generally lower |
| Typical Applications | High-temperature, automotive, racing, industrial | Automotive, trucks, industrial |
| Feature | Silicone Coolant Hose | EPDM Coolant Hose |
| Temperature Resistance | Excellent | Excellent |
| High-Temperature Stability | Excellent | Good to Excellent |
| Low-Temperature Flexibility | Excellent | Good |
| Coolant Compatibility | Excellent for many coolant systems | Excellent |
| Ozone Resistance | Excellent | Excellent |
| Weather Resistance | Excellent | Excellent |
| Aging Resistance | Excellent | Excellent |
| Flexibility | Excellent | Good |
| Oil Resistance | Limited | Limited |
| Abrasion Resistance | Good | Good |
| Custom Colors | Wide range | More limited |
| Custom Shapes | Excellent | Excellent |
| Reinforcement Options | Available | Available |
| Cost | Generally higher | Generally lower |
| Typical Applications | Automotive, racing, performance, industrial | Automotive, trucks, buses, industrial |
What are silicone coolant hoses used for?
Silicone coolant hoses are used to transport coolant between components such as radiators, engines, thermostats, expansion tanks, water pumps, and cooling circuits. They are suitable for automotive cooling systems as well as selected industrial and heavy-duty applications.
Applications of Silicone Coolant Hoses
Automotive Cooling Systems
Silicone coolant hoses can be used to connect radiators, engines, thermostats, expansion tanks, and other components in automotive cooling systems.
Trucks and Heavy-Duty Vehicles
Reinforced silicone coolant hoses can be customized for demanding cooling systems used in trucks, buses, construction equipment, and other heavy-duty vehicles.
Racing and Motorsport
Silicone hoses are widely used in performance-oriented cooling systems where flexibility, thermal resistance, and reliable connections are important.
Industrial Equipment
Custom silicone coolant hoses can be used in cooling circuits for generators, compressors, machinery, and other industrial equipment.
Agricultural and Construction Machinery
Silicone coolant hoses can be customized for cooling systems used in agricultural machinery, excavators, loaders, and other off-road equipment.
Silicone Coolant Hose vs. Rubber Coolant Hose
Both silicone and rubber coolant hoses are widely used in automotive and industrial cooling systems, but they differ in terms of temperature resistance, flexibility, durability, and cost. Silicone coolant hoses are typically suitable for demanding conditions that require high thermal stability and long-term environmental resistance, while rubber hoses are a practical choice for standard cooling systems and cost-sensitive applications.
Silicone coolant hoses are typically chosen when excellent high-temperature stability, flexibility, weather resistance, and long-term environmental durability are required; whereas rubber hoses may be preferred when lower initial costs or specific material compatibility are the priority.
Silicone vs Epdm Coolant Hose
Silicone and EPDM are both commonly used materials for coolant hoses, but they have different performance characteristics. Silicone coolant hoses are typically preferred for their high-temperature stability, flexibility, and suitability for harsh operating conditions, while EPDM coolant hoses excel in coolant compatibility, ozone resistance, and cost-effectiveness.
Silicone coolant hoses are the ideal choice for applications requiring high-temperature stability, flexibility, and long-term resistance to heat, ozone, and weathering. EPDM, on the other hand, is widely used in conventional automotive cooling systems and other applications where coolant compatibility and cost-effectiveness are key considerations.
Silicone hoses can be compatible with many commonly used automotive coolant and antifreeze systems. However, compatibility depends on the specific coolant formulation, concentration, temperature, and hose compound. For a custom project, Legensilico can evaluate the required material based on the coolant being used.
Yes. Legensilico can manufacture reinforced silicone coolant hoses with multiple reinforcement layers. Polyester, aramid, or other suitable reinforcement materials can be considered depending on the required pressure resistance, flexibility, temperature performance, and application.
Reinforced silicone coolant hoses can be designed for applications requiring increased pressure resistance. However, pressure performance depends on the hose diameter, wall thickness, silicone compound, reinforcement material, number of reinforcement layers, temperature, and operating conditions.
Yes. Depending on the product design, Legensilico can provide customized markings such as logos, part numbers, size information, product codes, or other identification marks.
Silicone should not automatically be considered suitable for continuous exposure to oil or fuel. Silicone coolant hoses are primarily designed for compatible coolant and water-based applications. If the hose will be exposed to oil, fuel, or other chemicals, provide the exact fluid and operating conditions so the appropriate material can be evaluated.
Depending on the design, Legensilico uses silicone extrusion and molding processes to manufacture coolant hoses. Custom products may involve tooling development, prototype production, reinforcement, forming, curing, trimming, inspection, and final packaging.
Silicone coolant hoses generally require routine visual inspection rather than special maintenance. During vehicle or equipment servicing, check for cracks, cuts, abrasion, swelling, leakage, loose connections, excessive softening, or deformation. Replace the hose if it shows signs of failure or damage.
