Fiberglass reinforced plastics (FRP) equipment is fabricated by applying layers to build up the required thickness. Due to time and exothermic conatraints, thickness may need to be built up in thinner increments with the first increment being allowed to cure before the next increment is applied. The interface between these two increments of thickness is called a secondary bond. This secondary bond is relatively strong when a design load is applied parallel to the bond area (lap shear), but ia relatively weak when applied perpendicular to the edge of the bond area (peel). Peel is a phenomenon peculiar to FRP equipment since the bonded layers could be peeled back at relatively low loads. Peel loading commonly occurs in areas such as lift lugs, holddown lugs, support clips, and nozzle attachments. Peel has been at the root of many equipment failures but is still not well understood and very little research has been performed in this area. This paper will provide a basis for others to begin with. It will cover peel definitions, how to deal for peel test methods, and peel strengths. Keywords: bond, composite, design, fiberglass, FRP, peel, RTP, shear