Question

Is silicone tubing resistant to gasoline?

Comments

Silicone tubing is generally resistant to gasoline, but the level of resistance can vary depending on factors such as the specific formulation of the silicone material and the duration of exposure to gasoline. Silicone is known for its excellent resistance to a wide range of chemicals, including petroleum-based substances like gasoline. However, prolonged exposure or exposure to high concentrations of gasoline may eventually degrade silicone tubing.

If you're considering using silicone tubing for applications involving gasoline, it's advisable to consult with the manufacturer or supplier to ensure that the specific silicone tubing you're using is compatible with gasoline and meets your requirements for durability and performance. Additionally, conducting tests or evaluations under conditions similar to your intended use can provide further assurance of the tubing's suitability for your application.

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Answer 1

Silicone tubing and hoses are not resistant to gasoline as silicone hoses are porous and not suitable for fuel or oil.

Stainless steel can be used for fuel line as it's resistant to fuel and good for high pressure as well.

The best material for fuel line is braided stainless steel fuel line that has much higher heat resistance and withstands high pressure liquid better than other fuel hose.

Rubber fuel hose is also good for fuel line.

Fuel lines don't usually need Teflon tape if you're using compression fittings.

However some fuel lines may need Teflon tape depending on the type of fuel line connector you're using.

You can Zip tie fuel lines to hang them or to also submerge the fuel hose in gasoline or diesel.

Plastic zip ties are fuel resistant and safe to be submerged in fuel.

Nylon fuel zip ties are also fuel resistant and also resistant to most chemicals.

The hose clamps for fuel line should be tight enough so that it's squeezes the fuel line somewhat and tight enough so the hose cannot be pulled off.

Tighten the hose clamp a little at a time and check the hose.

Just make sure the fuel hose clamp is not tight enough to cut into the hose.

You can use polyurethane tubing as fuel line as it has exceptional resistance to most gasoline, oils, kerosene, and other petroleum-based chemicals, making PU tubing and hose an ideal choice for fuel lines (although additives in today's gasoline and petroleum products warrant field testing).

The kind of hose you can use for fuel line is rubber fuel line hose that is rated for fuel.

SAE 30R7 hoses are designed for fuel.

Rubber hose that is rated for fuel can be used for return fuel line as well as pressure fuel line.

When using rubber hose for fuel line pressure make sure the rubber hose is rated for the fuel under pressure.

However any fuel hose that is rubber will be okay for fuel return line.

However just note that regular non fuel rated rubber vacuum or heater hose should never be used in fuel applications.

The hose will deteriorate from the inside out and can plug fuel filters and carburetors with rubber debris, long before it springs an external leak.

SAE 30R7 hoses are designed for fuel.

These can go under the hood and are typically used for low-pressure applications like carburetors or a fuel return line.

It can also be used for PCV connections and emissions devices.

SAE 30R9 hoses are designed for high-pressure applications like fuel injection systems.