Ultradent Products, Inc.’s, PermaFlo® DC luting resin is a highly filled, small particle, dual cured resin. At 9µm, it has the lowest film thickness known for a luting resin. It is filled 70% by weight, yet flows easily through a small orifice tip making post luting simple and convenient. Its unique formulation provides maximum strength, minimal wear, and the lowest film thickness known for a luting composite resin. PermaFlo DC is recommended for permanent cementation of opaques, total ceramic crowns, etc. It is also indicated as a flowable material for an initial layer and/or bulk fill in posterior bonded composite procedures. It can be used to lute posts and fabricate core in the same mix and delivery. PermaFlo DC’s optimal viscosity allows it to flow easily into the depths of the post preparation and then intimately around protruding, direct-placed posts.