Clearfil SE Protect - Bond Refill. Light-Cure, Self-Etching Bonding Agent Cavity Cleansing Property, Bond Refill, 5 ml bottle of Bond only. Offers a quick and simplified procedure. No-rinse formulation. Reduces post-operative sensitivity. Clearfil SE Protect provides light-curing and greater bond strength when used as a pretreatment for indirect restorations and cavity seal under amalgam repairs. This self-etching bonding agent has fluoride-releasing properties and makes for a quick and simplified procedure that requires no rinsing.