Does Copolymer Fishing Line Float or Sink?

Copolymer fishing line is a type of fishing line made from two polymers or plastics. It is often used in saltwater and freshwater fishing, as it is strong and resistant to abrasion. The properties of copolymer line depend on the two polymers used, but generally it consists of a low density polyethylene (LDPE) core, which provides strength and elasticity, and a lower-stretch outer layer of polyvinylidene fluoride (PVDF). This makes the line more sensitive to strikes and provides a better feel for when fish are biting.

The question of whether copolymer fishing line floats or sinks is an important one for anglers. Generally speaking, the answer depends on the specific type of copolymer used. Most copolymer lines will float when they are not submerged in water, although some may sink a bit due to the weight of the LDPE core. However, when they are submerged in water, they will usually sink because of their denser outer layer.

The Benefits Of Copolymer Fishing Line

One benefit of using copolymer fishing line is that it is less visible in the water than other types of fishing lines. This makes it ideal for clear waters where fish may be spooked by bright or reflective lines.

It also has good abrasion resistance, meaning it won’t easily break or fray due to wear and tear from contact with rocks or other debris in the water.

In addition, because copolymer has good flexibility and elasticity, it doesn’t kink as easily as other types of lines do when casting or retrieving lures or baitfish. This makes it easier to work with and helps reduce fatigue from long days on the water.


In conclusion, does copolymer fishing line float or sink? The answer depends on the specific type being used but generally speaking most will float when not submerged in water but sink when submerged due to its denser outer layer. Regardless, there are many benefits to using this type of line including its good flexibility and abrasion resistance as well as its low visibility in clear waters.

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Daniel Bennet