1,Description:
PVDF is short for Polyvinylidene fluoride.Due to the strong bond energy between the chemical bonds and chemical bonds of PVDF, the coating has very good corrosion resistance and color retention,which make PVDF coating be the most advanced product in the color coating steel construction industry.The molecular weight is large and the direct bond type structure, so in addition to chemical resistance, mechanical properties, ultraviolet resistance and heat resistance are also prominent.
2,Life span:
PVDF coating has an outdoor weather resistance of 20-25years.The coating resists urban dust, acid rain, hot sun, cold winds in the Arctic, and still maintains a beautiful appearance and integrity.It can be applied to a variety of harsh outdoor environments, especially those that require resistance to atmospheric pollution and durability or cold, heat and strong sunlight throughout the year.
Coating structure details:
Coating system:
-Coating system with double-sided two-coating
Primer coating:
-Using high-performance special anti-corrosive primers, such as epoxy resin, polyurethane resin, can also be made according to the environment of the customer's project area.
Top coating:
-Using high-performance PVDF coating with over 70% KYNAR 5000R or HYLAR 5000R,film thickness 20-25μm.
Top coating color & gloss:
-Color could be customized;
-Top coating gloss is typically 25%(60° reflection angle,according to ASTM D523)
Back primer coating:
-Using highly corrosion resistant Polyurethane(Also called PU),film thickness:2μm.
Back coating:
-Using good corrosion resistant epoxy resin coating or polyester resin coating,film thickness:7-10μm.
Back coating color & gloss:
-Back coating color is usually using beige,grey or white grey color.Back coating gloss is typically 25%(60° reflection angle,according to ASTM D523).
