Chipping may occur along the seam, particularly in natural stone. The exiting portion of the diamond blade used to cut granite will create many small chips. A small chamfer, called an “arris”, of approximately 1/16″ x 1/16″ can be used to eliminate most of these small chips. Large chips may be repaired with epoxy or polyester resin. Seams are assembled and any small chips are filled with polyester resin.
The industry term “lippage” refers to the planar offset of the finished surfaces of two adjacent stone pieces. Due to the relatively tight seams used in countertop installations, even minor amounts of lippage are noticeable.
Lippage may be unavoidable . Lippage at the center of the countertop of approximately 1/32″ or 0.8mm is considered industry-standard. Countertops will not be replaced due to lippage within acceptable industry standards.