Green glycerol-based gel in syringe. Prevents the formation of an oxygen inhibition layer and allows Panavia F 2.0 cement to cure in an anaerobic state. Especially the opaque paste should not be light cured but allowed to anaerobicly self-cure by using OXYGUARD II, because it has a low curing depth. Use: With a disposable brush tip apply OXYGUARD II to the margin. After 3min remove OXYGUARD II with a cotton roll and water spray