When comparing PE (Polyester) vs. PVDF (Polyvinylidene Fluoride) coated aluminum sheets, в “лучше” option depends on your specific needs for durability, environment, budget, and aesthetics.
PE vs PVDF Coated Aluminum Sheets
PE (Polyester) Coated Aluminum Sheets
Тип: A standard, widely used thermosetting polymer coating.
Durability/Lifespan: Moderate. Typically offers a shorter service life compared to PVDF, especially in harsh environments.
Weather Resistance (UV, Rain, Температура): Good, but susceptible to degradation over time from prolonged UV exposure. Can fade and chalk (develop a powdery surface) more quickly than PVDF, particularly with darker colors in sunny climates.
Color Retention: Fair to Good. Colors can fade noticeably over 5-10 годы, depending on the environment and color intensity.
Chalking Resistance: Fair. More prone to chalking than PVDF.
Gloss Retention: Fair to Good. Gloss level can diminish over time due to weathering.
Chemical Resistance: Moderate.
Flexibility/Formability: Generally good, allowing for bending and shaping without cracking the coating (within limits).
Hardness/Scratch Resistance: Moderate.
Стоимость: Lower. This is its primary advantage. Significantly cheaper than PVDF.
Typical Warranty: Often in the range of 5-15 годы (highly variable by manufacturer and specific product).
Typical Applications:
Interior decoration (ceilings, wall panels)
Signage
Short-to-medium term exterior applications
Areas with moderate weather conditions
Budget-sensitive projects
Rain gutters, downpipes (where aesthetics might be less critical long-term)
PVDF Coated Aluminum Sheets
Тип: A premium, high-performance fluoropolymer coating. Often uses resins like Kynar 500® or Hylar 5000® (typically requiring a minimum of 70% PVDF resin for optimal performance).
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More details about PE vs PVDF coated aluminum sheet: Which is better: https://www.dw-al.com/a/news/pe-vs-pvdf-coated-aluminum-sheet.html
