Check the listing for details. 5X DENTEX Dental Porcelain Etch Gel 9.5% Hydrofluoric Acid Etchant 2.5ml. Condition: New. Listed at 43.26 USD. Description:9.5% Porcelain Etch is an Etchant to make porcelain surface treatment.It is used on ceramic based crown,veneer,inlay and onlay.It can roughen the surface of porcelain and enhance the bonding strength.Packages:2.5 ml/syringe3X Disposable TipsInstructionWarning:Protective measures must be taken by patient,operator and assistant.Don’t use this product until you have thoroughly read and understood the instruction.FDA StatementThe sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, you can bid on this item only if you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.Seller name:MXDENTCity,State:SHENZHEN,ChinaTelephone number:0755-3692581 FDA for Tooth Bonding: 510(K)Number: K232978, Regulation Number: 872.3200, Product Code: KLEFDA for Resin: 510(K)Number: K180463, Regulation Number: 872.3690, Product Code: EBFThis product expires on 05/2025 or better.