Extrutech Plastics 45 Degree Outsisde Corner Trim, Item# P0146; for use as an outside 45 degree corner wall trim of our 1/2" thick Liner panels. Made of an exterior grade, hard, dense,rigid polymer, with a smooth outside surface, with 1/2" of panel coverage for each side and 7/8" wide nailing fins. Cut with standard power saw using a fine toothed blade. Fasten with truss head screws 24" OC along the length of each nailing fin per installation instructions or industry standard. Material is non-painted white, available at 8' foot and 16' foot lengths, with a weight of .09 lbs. per foot.