1. Material quality

Nylon type: There is a significant difference in wear resistance and high temperature resistance between nylon 6 (PA6) and nylon 66 (PA66). Nylon 66 is more resistant to aging and its service life may be extended by 30% -50%.

Single filament diameter: Fine filaments with a diameter of 0.15-0.35mm are prone to wear, while thicker filaments above 0.4mm are more durable (such as commonly used specifications for deep-sea trawling).

2. Operating environment

Seawater environment: Salt and microbial corrosion can shorten the lifespan to 1-3 years, while freshwater environment can reach 3-5 years.

UV exposure: Long term sun exposure can cause nylon strength to decrease by about 15% -20% annually, and adding UV resistant coatings can extend its lifespan by 1-2 years.

Depth of homework: Water pressure and friction accelerate wear in deep water areas (>50 meters), which may reduce usage time by 30% compared to shallow water areas.

3. Intensity of use

Commercial fishing: Under high-intensity operations (8-12 hours per day), fishing nets may need to be replaced within 6-18 months.

Leisure use: Intermittent use (2-3 times a month) can last for 3-5 years.

4. Maintenance measures

Cleaning frequency: Rinsing with fresh water after each use can extend the lifespan by 20%, and the corrosion rate of unwashed fishing nets can be doubled.

Storage method: Storing in a cool and dry environment has a lifespan 2-3 times longer than storing outdoors.

Timeliness of repair: Failure to repair minor damages may result in the rupture expanding by more than 50% within 3 months.

5. Process impact

Weaving density: High density weaving (such as 30 mesh or more) improves tear resistance, but increases costs by 40%.

Knot technique: Knot free weaving has 15% -25% higher strength than traditional knot fishing nets, but is 50% more expensive.

Suggestions for extending lifespan

Choose UV resistant model: Fishing nets treated with UV stabilizers can be used for an additional 1.5-2 years.

Regularly soak in fresh water: Soak for 30 minutes after each operation to reduce salt crystallization corrosion.

Avoid dragging hard objects: Friction with rocks once is equivalent to the wear and tear of 10 normal uses.

Using protective netting: Installing polyethylene protective netting on the outer layer can reduce direct damage by 35%.