What is Copolymer Fishing Line? A Beginner’s Guide

Thomas Krik

Written by

Thomas Krik

Marc Lowe


Marc Lowe

what is copolymer fishing line

Copolymer fishing lines have emerged as a game-changer. These lines are made from robust materials, making them resistant to regular wear and tear.

You will find plenty of copolymer fishing line reviews online. But this article will cover everything about these fishing tools. From composition to properties to pros and cons, you will find it all here!

So, what is copolymer fishing line? Keep reading to learn more!

All About Copolymer Fishing Line

1. Definition

Copolymer fishing lines combine two different polymers to create a versatile and effective fishing tool. These lines are usually composed of nylon, nylon-polyethylene, or nylon-polyvinyl chloride.

They are made by melding two distinct polymers together through a meticulous melting and extrusion process. The primary polymer utilized is not only cost-effective but also possesses properties similar to those of monofilament lines.

The introduction of a second polymer elevates the copolymer line’s performance. This supplementary polymer enhances the line’s strength, making it more resilient against demanding fishing conditions.

So, does a copolymer fishing line float? The answer is yes because there are two types of copolymer fishing lines:


  • Copolymer braided fishing line

This type of copolymer fishing line is made with two to three intertwined strands of polymers. This results in a compact structure with a narrower diameter.

Aside from fluorocarbon, a braided fishing line is also recommended for bait casters. This is because they have zero memory, reducing the risk of your line tangling once it gets out of the spool.

  • Copolymer floating fishing line

Floating copolymers are made by blending two polymers into a single strand. When immersed in water, these copolymers promptly absorb moisture while retaining their buoyancy, effortlessly floating atop the surface when dry.

Anglers also prefer copolymer fishing lines for spinning reels. Despite being relatively thin, these lines don’t snap, enabling longer casting distances and heightened sensitivity to fish activity.

2. Features and Characteristics


  • Enhanced Knot Strength

Copolymer lines provide superior knot strength compared to monofilament lines. This minimizes the likelihood of line breakage during a fish fight.

  • Transparency and Light Refraction

Copolymer lines are transparent, and they excel at refracting light. This feature makes them less conspicuous and reduces the chances of fish detecting the line.

  • Thinner Diameters

Copolymer lines are thinner, allowing for extended casting distances and allowing the angler to spool more lines onto their reel.

  • Minimal Water Absorption

Copolymer fishing lines do not absorb water like monofilament lines do. This characteristic prevents the line from becoming heavier when submerged and retaining its desired properties.

3. Benefits and Drawbacks

  • Minimal Spool Memory for Tangle-Free Casting

Copolymer lines have a reduced tendency to retain spool memory compared to other fishing lines. This feature prevents the line from unspooling and tangling during casting.

  • Heightened Sensitivity for Light Bite Detection

Copolymer fishing lines are stiffer, resulting in heightened sensitivity. It enables anglers to detect even the slightest nibble.

  • Vulnerability to Solar and Heat Damage

Like other fishing lines, copolymer lines are susceptible to damage from exposure to sunlight and high temperatures.

  • Copolymer Fishing Lines are Pricier

The advanced features and manufacturing processes in creating copolymer fishing lines result in their higher price point in the market.

  • They are Not as Strong as fluorocarbons.

Copolymer fishing lines do not match the strength of fluorocarbon fishing lines. This is primarily due to the differences in their chemical compositions and manufacturing processes.

Copolymer vs Monofilament vs Fluorocarbon


Copolymer fishing lines, monofilament fishing lines, and fluorocarbon fishing lines are three distinct types of fishing lines, each with their own unique characteristics and advantages.

Understanding the differences between them can help you make an informed decision based on your specific fishing needs. You can check out the table below to get an overview of their features.

1. Copolymer vs Monofilament

Comparison Features Better pick
Strength Copolymer
Stretchabity Mono
Sinking Ability Copolymer
Low Memory Copolymer
Water Resistance Copolymer
Sensitivity Copolymer
Better visibility Mono

2. Copolymer vs Fluorocarbon

Comparison Features Better Pick
Line Strength Copolymer
Stretchabity Fluorocarbon
Sinking Ability Copolymer
Low Memory Copolymer
Water Resistance Copolymer
Sensitivity Tie
Visibility Fluorocarbon


Now you know, what is copolymer fishing line? This is a fishing line that anglers can confidently rely on to enhance their fishing experience and increase their chances of landing that prized catch.

Copolymer fishing lines offer a range of advantages that set them apart from monofilament and fluorocarbon lines. By incorporating multiple polymers, these lines deliver enhanced performance characteristics.

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