Arkema proudly offers Kynar 500 FSF technology for use in superior performance metal roof coatings. Celebrating over 50 years of proven protection, Kynar resin-based coatings provide protection against weathering, aging, and pollution on commercial, industrial, and residential buildings worldwide. Arkema produces Kynar 500 FSF PVDF resin using a patented fluorosurfactant-free (FSF) process. No fluorosurfactant of any kind is used to manufacture Kynar 500 resin, making it a key component of sustainable design.