How to extend the service life of EVA transparent film?
Ⅰ. Key factors affecting the life of EVA transparent film
1. Ultraviolet radiation
EVA film without UV stabilizer will show obvious yellowing and embrittlement after 1-3 years of outdoor use, and the service life of UV-resistant EVA film can reach more than 5 years
2. Temperature change
Continuous exposure to an environment above 60℃ will cause the material to soften and deform, and low temperatures below 20℃ may make the film brittle
3. Mechanical stress
Stress concentration caused by folding may cause microcracks, and surface scratches will accelerate the local aging process
Ⅱ. Professional storage plan
1. Environmental control
Temperature: 15-30℃ (ideal storage temperature)
Humidity: Keep relative humidity <50%
Away from heat sources and chemical storage areas
2. Storage method
Preferably choose original roll storage
The stacking height should not exceed 1 meter when stored flat
Folding storage is prohibited (to avoid permanent creases)
3. Special protection
Use dust cover to protect the film surface
Check storage status every quarter
First-in-first-out inventory management principle
III. Best Practices for Use and Maintenance
1. Installation Precautions
Use special installation tools (such as plastic card slots)
Retain 5-10% expansion margin
Avoid operating when wind speed>5m/s
2. Daily maintenance
Cleaning cycle: once every 2-3 months
Cleaning method: Use a soft brush to remove dust on the surface, wipe with a neutral detergent (pH6-8) solution, and finally rinse with deionized water
3. Injury treatment
| Injury Type | Repair plan | Expected Results |
| <3mm hole | EVA special repair glue | completely sealed |
| Linear cracks | Double-sided reinforcing tape | Extend life expectancy by 1-2 years |
| Large area damage | Overall replacement | Restore original performance |
IV. Industry-proven tips for extending life
1. Photovoltaic module applications: Regularly check the frame sealing and professionally clean twice a year
2. Agricultural greenhouse applications: Clear snow in winter (load <15kg/m²) and install insect-proof nets to reduce mechanical damage
3. Packaging applications: Control the sealing temperature at 120-150℃ and avoid long-term contact with oily substances
V. FAQs
Q: Does slight yellowing of the EVA film affect its use?
A: Slight yellowing (transmittance decreases <10%) does not affect basic functions, but it is recommended to strengthen UV protection.
Q: Can the EVA greenhouse film be washed with water?
A: Yes, but the water pressure must be controlled to <3bar, and direct impact with a high-pressure water gun should be avoided.
Q: How to determine whether the EVA film needs to be replaced?
A: Replacement should be considered when the following situations occur: light transmittance drops by more than 30%, tensile strength loss reaches 50%, and large-scale irreparable damage occurs.
Conclusion
Through scientific storage methods and standardized maintenance processes, the service life of EVA transparent film can be extended by 30%-50%. It is recommended that users establish regular maintenance plans based on specific application scenarios and give priority to high-quality EVA film products with UV stabilizers. Proper maintenance can not only reduce the frequency of replacement, but also ensure that the material always performs at its best.
