F10 scxd is a cleaner/sanitizer that needs to be rinsed after using it for cleaning. The XD stands for extra detergent.
The regular F10sc is a disinfectant that needs to dry on the surface of whatever it's cleaning in order to be effective. I use both, clean with SCXD and disinfect with SC. From what I could gather they have a longer useful lifespan after mixing than chlorhexadine but chlorhex still works great too. Just have to mix a new bottle more frequently
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