The Best Filament for Fishing Lures (Buy This, Skip That)
Which filament to buy for 3D printed fishing lures: PETG as the default, white as the paint base, why brand matters less than dryness — and what not to waste money on.
The material question has a short answer — PETG, ideally white, kept dry — and a longer honest explanation of why, plus a list of things the filament aisle will try to sell you that a lure builder does not need. If you want the full material science comparison, the PETG vs PLA guide goes deeper; this page is the buying decision.
PETG is the default — here is the short version
A lure body lives a hard life: cast impacts, rocks, teeth, summer heat in a car, and permanent water contact behind a thin epoxy shell. PETG is ductile where PLA is brittle, holds shape at temperatures that soften PLA, and bonds well layer-to-layer. Every print profile we ship assumes it. PLA remains a legitimate fallback for shape checks and light duty — seal it just as thoroughly — but if you are buying a spool specifically for fishing gear, buy PETG. For soft-bait molds PETG is not a preference but a requirement: plastisol is poured at ~170 °C.
Buy white, and here is why
White PETG is the quiet optimization almost nobody mentions: it is the paint base. Most lure patterns start from a light belly and build darker tones on top — printing in white means your primer coat is effectively already on the lure, and thin airbrush layers cover in one pass. Sealed raw, white reads as classic "bone" — a proven lure color for decades. Natural translucent PETG is the alternative if you like the technical look under clear epoxy. See the painting guide for what happens on top.
Brand matters less than dryness
Mainstream spools from SUNLU, eSUN, ELEGOO and friends all print our parts well — the catalog is deliberately designed around ordinary filament on ordinary printers. The spec that actually separates spools is diameter tolerance (±0.03 mm or tighter) and how dry the filament reaches your printer. PETG absorbs moisture within days of opening: wet PETG strings like a spiderweb, pops microscopic steam bubbles into your layers, and weakens exactly the bonds a lure depends on. The unglamorous truth: a €14 spool plus dry storage beats a €30 spool stored open on a shelf.
That makes a dry box the one accessory worth adding to a filament order — either a sealed storage box with desiccant, or an active dryer that also feeds the printer while drying. If your prints suddenly get hairy after a spool sat out for two weeks, moisture is the reason; a few hours at ~55 °C brings the spool back.
What not to buy
- Carbon-fiber PETG — abrasive (eats brass nozzles), twice the price, and adds stiffness a lure body does not want.
- Silk PLA — the shine gets painted or epoxied over; you pay extra for an effect the build erases, on a material that is the weaker choice anyway.
- ABS/ASA for lures — solves heat problems a lure never has, and brings warping and fumes. (ASA has a niche for permanently sun-exposed hardware like rod holders — covered in the material guide.)
- Flexible TPU — soft baits are poured from plastisol in printed molds, not printed directly; TPU is the wrong tool here.
The honest shopping list
One spool of white PETG covers a season of lures with room to spare — the links below are the exact kind of spool we design around. Add a dry box if your climate is humid or your spools live outside a sealed cabinet. That is the whole material story: no exotic filament makes a lure catch more fish, but dry PETG makes every lure you print stronger.
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
How many lures does one spool print?
A 9 cm lure body prints at roughly 15–20 g with our profiles, so a 1 kg spool is dozens of lures — plus molds, holders and whatever else you print that year. Material cost per lure is cents, not euros.
Does filament brand really matter?
Less than the marketing says. What matters is diameter tolerance (±0.03 mm or better), a clean wind, and above all dryness. SUNLU, eSUN, ELEGOO and similar mainstream brands all print our parts fine. A premium spool of wet filament prints worse than a budget spool of dry filament.
Why does PETG string and how do I stop it?
PETG is hygroscopic — it pulls moisture from the air within days of opening, and wet PETG strings, bubbles and weakens layer bonds. Store opened spools sealed with desiccant, and if printing gets hairy, dry the spool (a filament dry box at ~55 °C for a few hours, or follow your dryer's PETG preset).
White, natural or colored filament?
White if you plan to paint — it doubles as the primer-bright base coat. Natural (uncolored) PETG is slightly translucent, which looks great sealed raw. Colored PETG works, but dark bodies need more paint to cover, and pigment does not change the mechanics either way.
What about carbon-fiber PETG, silk PLA or ABS?
Skip all three for lures. CF-PETG wears standard brass nozzles, costs double, and stiffness is not what a lure body needs. Silk PLA trades strength for shine that gets painted over anyway. ABS buys heat resistance a lure never needs, at the price of warping and fumes.
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.
