Silicone Tube Pipe Hose O-shaped Soft Rubber High TEMP 300℃ 20-1000mm ID

Measure the outer diameter (OD) of the fitting or pipe stub the hose will slide onto. The silicone tube's inner diameter (ID) should match or be very slightly smaller than that OD so the hose grips the fitting under compression. For example, if your barbed fitting has a 25 mm OD, select the 25 mm ID variant. When in doubt, size down by 1–2 mm for a tighter interference fit.

The 300°C rating reflects the continuous service temperature for the silicone compound. Short-duration excursions slightly above this threshold are generally tolerated, but sustained operation beyond 300°C will accelerate material degradation. For intermittent high-heat applications such as exhaust heat shielding, confirm your peak cycle temperatures before selecting this hose.

Silicone rubber performs well with water-based coolants and dilute glycol mixtures. It has limited resistance to petroleum-based fuels and oils — prolonged contact with gasoline, diesel, or engine oil can cause swelling and softening. For fuel lines, a fluorosilicone or PTFE-lined hose is a more appropriate choice. If you are unsure about chemical compatibility for your specific fluid, please contact us before ordering.

Silicone is widely used in food-contact applications due to its inert nature and resistance to bacterial growth. However, food-grade certification status varies by batch and supplier. If your application requires FDA or NSF-certified silicone tubing, please contact us to confirm the certification status of the specific lot before purchasing.

Use a sharp utility knife or a dedicated hose cutter to make a single straight cut — a clean square end seats evenly against barbed fittings and prevents leaks. Lubricate the fitting with a small amount of water or dish soap to ease installation. Secure with a stainless steel hose clamp sized to the hose OD for a leak-free connection. Avoid petroleum-based lubricants during installation as they can degrade the silicone surface over time.

Yes. Silicone rubber has inherently good resistance to UV radiation, ozone, and moisture, making it suitable for outdoor routing where EPDM or neoprene hoses may crack or harden over time. For long-term outdoor installations exposed to direct sunlight, a UV-stabilized silicone compound is preferred — contact us if you need confirmation of UV stabilizer content for your specific diameter.

Each unit is sold as a 1-meter length. To cover longer runs, simply add multiple units to your cart and join sections with a straight barbed coupler of the matching diameter. If you need a continuous length greater than 1 meter for a specific project, contact us to discuss bulk or custom-cut options.