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Friday, July 17, 2009

Fishing worms

Fishing worms and other soft plastic baits are some of the most modern offerings in artificial lures. Though there was a patent approved in 1906 for a hard rubber "angle worm" that wrapped around a hook to give a worm-like presentation, it was not until the 1950s that the idea actually caught on.

1. Some soft bait manufacturers use silicone for their worms. Silicone is often used when the lure has a combination of hard and soft textures (such as a solid head with a swimming tail). Silicone gives the bait softness, motion and elasticity.

2. Plastisol is a generic expression. It represents polyvinyl chloride (PVC) suspended in a solution known as a plasticizer. Plastisol starts out as a liquid vinyl, but upon heating and cooling it becomes a flexible plastic product.

Polyvinyl Chloride
3. The PVC in your worms is the same PVC that is used in your plumbing and waterproof boots. The difference between them is only the amount of plasticizer they contain, which space out the polymers and make the plastic more flexible. More plasticizer makes the bait softer, but also less durable.

Polyvinyl Alcohol
4. Polyvinyl alcohol (PVOH) is a water-soluble plastic that is used in some newer soft baits. It has been used in fishing to provide a quick-dissolving pouch for rigs and bait dispersal. This new application challenges the manufacturers to suspend its dissolution for fishing while still allowing lost lures to break down safely.

FoodSource Lures
5. The company FoodSource Lures has developed a line of soft baits that behave in a similar fashion to their plastic kin, but that are molded in a gelatin base that is void of polymers. The exact composition of FoodSource baits is closely guarded. The material is durable, completely biodegradable and fully digestible.


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