we all looking PVDF coated coils for acp or mcp application just as to cover maximum warranty . In fact recent past 5 year PVDF price gone triple than regular . What we know about PVDF ? Who invented ? Why this is being use for exterior coating ? Why not other material use those have multi times better performances over PVDF .

I would explain you here :

PVDF is fluorocarbon based polymer “poly vinyl diene fluoride first discover in 1961 by Pennsalt chemical corp and offer two commercial grade 600000 molecular wt.grade and 300000 molecular wt. grade and laterally branded as Kynar. One key properties were discover that this polymer dissolved in solvent diemethyl acetamide and basic amines lead to dicoloration and embrittment even at high temperature 150 degree C . This properties play vital roll in exterior paint application . Which we doing and crying for PVDF coated ACP and share maximum portion of stake to paint supplier and this commercial paint content maximum 20 to 25% PVDF resins only with 70% acrylic to get Matt gloss balance .

What is alternative options

In 1960 Du pony discover PVF poly vinyl fluoride also fluorocarbon polymer and brand is being sold as Tedlar. Tedlar discover with excellent performance out door whethering resistant and high heat stability but no one think to Devloper paint to replace PVDF . But now metal laminated Tedlar film will be next gen coils .

Also
1972 Teflon already discover by du pont and ptfe coated material already into market with highly expensive due friction and non sticky application over 100 year more warranty of discoloration but still no one attempted for acp and mcp application .