The default choice for marine use. Waterproof, easy to print, flexible enough to absorb vibrations. Works on any FDM printer without an enclosure. Ideal for brackets, covers, cable guides and general fittings.

Superior choice for parts permanently exposed to sun and weather. Outperforms PETG in UV stability and heat resistance. Requires an enclosure or stable ambient temperature. Perfect for cockpit fittings, antenna mounts and external accessories.

Rubber-like material, ideal where you need flexibility, grip or vibration absorption. Perfect for gaskets, edge protectors, non-slip pads, cable protection and fender holders. Not suitable for rigid structural parts.

Carbon fibre filled PETG — significantly stiffer and lighter than standard PETG, with excellent dimensional stability. Ideal for structural brackets, instrument mounts and parts that must hold tight tolerances under load. Requires a hardened steel nozzle. Not flexible — avoid thin snap-fit geometries.

The best of both worlds — carbon fibre stiffness combined with ASA's UV and heat resistance. The top choice for structural external parts exposed to direct sun. Harder to print than PETG-CF, requires an enclosed printer and hardened nozzle. Worth the effort for critical components.

Nylon 12 with carbon fibre — extremely tough, impact resistant and stable even in humid environments. Excellent for high mechanical stress components: cleats, winch parts, safety hardware. Hygroscopic — filament must be kept dry and printed hot. Best results with an enclosed printer.

Excellent fatigue resistance without the brittleness of carbon fibre. Good for parts that flex repeatedly — hinges, straps, gear covers. Absorbs moisture over time, reducing stiffness; apply a top-coat for prolonged immersion. Requires dry filament and high print temperatures.

Exceptional chemical resistance — perfect for parts in contact with fuel, oils or bilge fluids. Lightweight, naturally waxy surface that repels moisture. Difficult to print due to warping and bed adhesion. Niche use: fuel system fittings, bilge area components, battery covers.

Ultra-high performance polymers — heat resistant up to 150–250°C, comparable to aluminium in some applications. Overkill for most marine components, but the right call for engine bay parts, exhaust proximity, or parts under sustained extreme load. Require an industrial printer (300°C+ nozzle). Best ordered through online print services.

Easy to print but degrades quickly under heat and moisture. Starts deforming at 55–60°C — a cockpit in summer easily exceeds this. Use it only for fit-check prototypes before printing in the final material. Never use on board.