Core concept: Fluorocarbon coating = "super protective clothing" for metal
With fluorocarbon resin (fluorinated polymer) as the core, it provides metal (aluminum plate/steel plate) with super weather resistance, corrosion resistance, and self-cleaning properties, which are commonly found in high-end building curtain walls, airports, and landmarks.
Physical comparison: PVDF vs PE key performance comparison
1. Weather resistance (anti-UV/wind and sun)
PVDF: Stable molecular structure (fluorine content up to 70%), difficult to be damaged by ultraviolet rays.
After ten years under the scorching sun, the coating is still as bright as new, with a light retention rate of > 70%.
Physical object: PVDF samples exposed to the sun for many years have slight gloss loss and no powdering.
PE (polyester): Molecular chains are easily decomposed by ultraviolet rays.
In just a few years, the coating surface cracks, powders, and the color fades significantly.
Physical object: PE samples exposed to the sun for several years have obvious powdering, fading, and rough surface.
2. Chemical corrosion resistance (resistance to acid rain/pollutants)
PVDF: Extremely inert, difficult to be corroded by acids, alkalis and salts.
Acid rain splashes, water drops roll off, and the coating is intact.
Actual object: Salt spray test for thousands of hours, no blistering, no rust.
PE: General chemical resistance, easily corroded.
Where acid rain corrodes, the coating will have spots and lose its luster.
Actual object: Corrosion spots and blistering are easy to appear after salt spray test.
3. Self-cleaning (anti-fouling and easy to clean)
PVDF: Low water surface energy, dust and rain are difficult to adhere.
Rainwater washes, stains flow down, and the surface is smooth.
Actual object: After years of outdoor use, it is still relatively clean after rain.
PE: High water surface energy, easy to adhere to pollutants.
Stains adhere stubbornly, and rainwater leaves water stains.
Actual object: It is easy to accumulate dust and leave water marks, and needs to be cleaned manually.
4. Cost and common applications
PVDF: It has a relatively high economic cost and is used in high-end durable buildings such as super high-rise buildings, airports, and stadiums.
PE: It has a relatively low economic cost and is used in short- and medium-term projects such as factories and ordinary buildings.
Performance Difference Summary Table
| Features | PVDF Fluorocarbon Coating | PE (Polyester) Coating | Winner |
| Weather Resistance | ⭐⭐⭐⭐⭐ (Super Strong, 20-30+ Years) | ⭐⭐ (General, 5-10 Years) | PVDF |
| Corrosion Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | PVDF |
| Self-cleaning | ⭐⭐⭐⭐ | ⭐⭐ | PVDF |
| Cost | Higher | Lower | PE |
Conclusion in one sentence:
> If you want "ten years of good looks", choose PVDF fluorocarbon, if you want "short-term economy", use PE polyester - just like sunscreen, SPF50+ (PVDF) is naturally more resistant to erosion by time than SPF30 (PE).