Which line material is most resistant to UV rays?

Which line material is most resistant to UV rays?

• A. Nylon
• B. Polypropylene
• C. Kevlar
• D. Polyester

Answer: (D)

UV resistance in line materials depends on how quickly sunlight can cause photo-oxidation that weakens the polymer. Polyester stands out because its backbone and structure resist that oxidative damage longer and it’s often formulated with UV stabilizers, helping it keep strength and color when exposed to sun. Nylon tends to absorb moisture and can accelerate degradation under UV. Polypropylene has decent UV stability, but without stabilizers it can become brittle with long-term sun exposure. Kevlar is notably susceptible to UV and will lose strength with prolonged sun exposure. So, among these options, polyester maintains performance the best under UV light.

UV resistance in line materials depends on how quickly sunlight can cause photo-oxidation that weakens the polymer. Polyester stands out because its backbone and structure resist that oxidative damage longer and it’s often formulated with UV stabilizers, helping it keep strength and color when exposed to sun.

Nylon tends to absorb moisture and can accelerate degradation under UV. Polypropylene has decent UV stability, but without stabilizers it can become brittle with long-term sun exposure. Kevlar is notably susceptible to UV and will lose strength with prolonged sun exposure. So, among these options, polyester maintains performance the best under UV light.