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Home Xometry Community Materials & Finishes Fuel-resistant material for 3D printing

Fuel-resistant material for 3D printing

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Hi! I’m restoring an older two-stroke motorcycle and need to replace a worn-out venturi nozzle that draws in fuel-air mix. I’m considering having it 3D printed, but I’m unsure which material would best hold up to long-term gasoline exposure and engine heat (ambient temps around 70–90°C, possibly higher during load). Mechanical stress is low, but it needs to be tough—not brittle—and resistant to swelling or degradation over time. Thanks

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      Hi! I’m restoring an older two-stroke motorcycle and need to replace a worn-out venturi nozzle that draws in fuel-air mix. I’m considering having it 3D printed, but I’m unsure which material would best hold up to long-term gasoline exposure and engine heat (ambient temps around 70–90°C, possibly higher during load). Mechanical stress is low, but it needs to be tough—not brittle—and resistant to swelling or degradation over time. Thanks

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      So you need a polymer that won’t swell with gasoline, but also one that survives at temperatures that are above most “common plastics” melting points.

      What 3D printing technologies are available to you from local service providers? The available technologies will also limit the materials that are available to you. My best guess for a good material would be something like Nylon 12 with an SLS printer.

      A more accessible option may be to find a specialized resin for stereolithography (SLA). Unfortunately resins tend to be brand-specific, but there are a number of options for flame-retardant or glass-filled resins that should work.

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Fuel-resistant material for 3D printing
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