TotalBoat TableTop Epoxy should never be mixed with a drill mixer. A drill mixer should generally only be used with lower viscosity epoxy products, as the high speed mixing will induce air bubbles into the epoxy, which may become extremely difficult to get rid of when the epoxy is poured depending on thickness. A drill mixer will not scrape the bottom and sides of the mixing container, which could lead to sticky or uncured spots in the epoxy.