Fiberlay 180220160 Orca Nylon Peel Ply. 1.8 oz x 60" Lt Blue. This nylon base woven fabric is used against the surface or the laminate where rough surface is required. Normally peel plies leave the woven impression on the surface ensuring roughness of the laminate. Peel ply has porous and weave structure which absorbs the excess resin during curing leaving the rough impression on the surface.