Fishing Lure Materials Explained: ABS, PVC, TPE, Lead and When Each One Fails

Specification sheets list materials. They rarely list failure modes. This is the short version of both.

ABS — hard bait bodies

ABS (acrylonitrile butadiene styrene) is the default for injection-moulded hard lures. It takes paint well, holds fine surface detail, and is cheap at volume.

• Fails when: left in direct sun on a boat deck for a full season. UV degrades the surface, then the clear coat, then the paint.
• Also fails when: the through-wire is not anchored to a reinforced boss. The body is strong; the anchor point is what breaks.
• Watch for: recycled ABS content. It lowers cost and impact strength together, and it is invisible in a spec sheet.

Polycarbonate — clear lips, clear bodies

Polycarbonate is used where transparency is needed. It is far tougher than ABS but roughly two to three times the material cost.

• Fails when: exposed to ammonia-based cleaners, which some anglers use on tackle. It stress-cracks.
• Watch for: thick clear sections that were not dried properly before moulding. They show fine internal bubbles that become crack origins.

PVC and plastisol — soft plastics

Soft plastics are usually plastisol, a PVC paste. Hardness is expressed in shore units: 4-6 shore for a slow, lifelike worm; 10-14 shore for a swimbait tail that must hold its action at speed.

• Fails when: stored in contact with other soft plastics of a different formulation. Plasticiser migrates between them and one of the two goes hard or tacky.
• Fails when: left in a hot car. Plastisol creeps and the bait deforms permanently.
• Watch for: phthalate-free formulations are increasingly requested by EU and US buyers. Ask which plasticiser is used if you sell into those markets.

TPE — the soft-plastic alternative

Thermoplastic elastomer does not use plasticiser, so it does not migrate and does not react with other baits. It is more expensive and harder to mould into fine detail.

• Best for: markets where plasticiser regulation is strict, or where baits are stored together for long periods.
• Fails when: a buyer expects the exact feel of plastisol. TPE is springier and many anglers notice.

Lead and its substitutes — jigs, heads, sinkers

Lead is dense, cheap and easy to cast, which is why it dominated for a century. It is also restricted in a growing number of markets.

• Substitutes: tungsten (denser, harder, roughly 5-10x the material cost), bismuth tin (castable, expensive), steel and zinc (cheaper, much less dense, so the head must be larger for the same weight).
• Fails when: lead is cast with the wrong alloy. Too hard and it cracks at the hook eye; too soft and the eye deforms under load.
• Regulatory: check the destination market. Several US states and the EU restrict lead in certain tackle categories, and the rules differ by product type, not just by weight.

Stainless wire and hardware

Through-wires and split rings are usually 304 or 316 stainless. 304 is standard; 316 is the marine grade and resists chloride pitting considerably better.

• Fails when: 304 is used in a saltwater lure that lives in a wet tackle box. Pitting starts at the wire exit point where water sits.
• Watch for: plating thickness on hooks. Thin nickel plating on a saltwater hook is a corrosion schedule, not a coating.

What to put in your specification

For each component, specify: material grade, the failure condition you care about, and the test that proves it. "ABS body" is not a specification. "ABS body, virgin resin, 1.2mm through-wire boss, 316 stainless wire, 8kg static pull" is.

Ask your supplier for the material certificate for the resin batch. Any factory buying virgin resin can produce it.

Discuss a specification with us or see how we vet suppliers.