The latest exhibition of work by Los Angeles-based artist Neal Rock, currently on view at Culver City’s Loudhailer Gallery, asks viewers to consider artistic materials in a fresh and interesting way, but falls somewhat short conceptually. Rock’s abstract, sculptural works combine found components, such as insulation material, with layered experiments in oil paint, silicone, and printing. These idiosyncratic objects are tantalizingly ambiguous in tone but[…..]