Features a work time of greater than 6 hours on the pad. Kerr Pulp Canal Sealer EWT is a zinc oxide eugenol sealer that has a powder base and liquid catalyst. This radiopaque canal sealant is nontoxic and non-irritating formulation that has a long history of clinical success. The extended working time is 6-8 hours. Kit: 10.5 g Powder, 4 ml Liquid, 2 Dispensing Scoops Features and Benefits Longer work time-6 to 8 hours on the pad after mixing Average setting time of one hour or less Radiopaque Low solubility in oral fluids