Is the BURST Floss waxed? 22 October 2021 20:01 Updated Yes, The BURST Floss uses Microcrystalline wax, there are No PFAs. Related articles Why does the BURST Floss get stuck in my teeth sometimes? How much BURST Floss is on the bobbin and how long should it last? Is the BURST Floss biodegradable? Can I buy another BURST Floss case by itself? How thick is the BURST Floss strand?