Best Filament for Fishing Lures: PETG, PLA and Your First Print
Choose PETG or PLA for a lure body, start with the model’s print settings, then check fit, sealing and buoyancy. Includes a concrete 9 cm crankbait build.
PETG is our starting material for lure bodies; PLA is useful for an initial fit check. Choose the material for the exact part, then use its build instructions. A strong-looking print does not establish waterproofing, hook retention or swimming action.
Choose the material before the color
PETG offers more temperature resistance than ordinary PLA. Prusa describes PETG for uses below 80 °C, which is a material guide, not a guarantee for every printed part. Follow your filament manufacturer’s profile and temperature limits. The PETG vs PLA comparison explains the trade-offs.
Clear or translucent filament lets you leave the diving lip free of paint. Expect translucency rather than glass clarity. White gives opaque paint a light base. Both need surface preparation and compatible epoxy sealing; see the transparent-lip guide.
A concrete starting build: the 9 cm crankbait
Open SHOAL to see the body and parts list. Check the selected model’s assembly guide before printing. For the current wobbler design, the fit-test starting point is a 0.4 mm nozzle, 0.16 mm layers, three walls and 10% gyroid infill, with both halves on their flat mating faces. These are starting settings, not a validated fishing result.
- Inspect the slicer preview: the wire channel, ballast pockets and joining faces must stay open and intact.
- Print one set and dry-fit the wire, pins and halves before using glue.
- Weigh the actual print and hardware. The pocket volume does not specify a validated ballast mass.
- Complete the through-wire assembly and epoxy sealing. Check leakage, buoyancy and action separately after curing.
What our print checks establish
Our September 2026 build notes record a first printed 9 cm crankbait and follow-up assembly questions. They do not establish finished buoyancy, casting durability or catching performance. CAD and file checks confirm the supplied geometry; they do not replace testing the assembled lure.
Keep the spool and the process consistent
Use one filament and the matching manufacturer profile for the first comparison. Record the spool, nozzle, layer height, walls, infill and printed mass. If stringing or surface bubbles appear, check moisture as well as temperature and retraction. Follow the filament and spool manufacturer’s drying instructions.
Do not transfer these settings to a soft-bait mold or a loaded rod holder. Those parts have different heat and load requirements. In particular, PETG temperature resistance is not evidence that it tolerates hot plastisol.
Source and next step
Prusa: PETG material guidance, checked 15 October 2026. Our model-specific settings come from the linked build guide. Start with the lure-building overview if you have not assembled a printed lure before.
PETG filament, white 1 kg (SUNLU)The paint base. White body = primer already on — and sealed raw it reads as classic bone.
PETG filament 1.75 mmThe material we design for — tough, water-safe, easy to print.
Filament dry box with fanPETG pulls moisture in days. Dry filament prints stronger lures — this is the one accessory that earns its space.Frequently asked
Which filament should I use for a first lure body?
PETG is our starting recommendation. PLA is useful for checking the fit of the body halves and wire channel. Neither material makes a finished, tested lure by itself; assembly, epoxy sealing and a water test are still required.
How much filament does a lure use?
Slice the exact model with its specified walls and infill. Size, body shape and settings change the mass. Do not use a generic grams-per-lure estimate to choose ballast.
How should I dry PETG?
Follow the filament manufacturer’s drying temperature and duration, and check that the spool tolerates that temperature. Stringing can also come from temperature, retraction or travel settings.
Can I use PETG for a hot-plastisol mold?
A PETG recommendation for lure bodies does not establish that a printed mold can withstand hot plastisol. Require a separate validated mold process and material specification. We do not have evidence here for repeated hot pours.
Every Fishing3D file ships with the guides that match it — print profiles, assembly, sealing, tuning. Ordering opens soon — leave your email for a single heads-up.
