Peel Ply, also known as Release Fabric, is a synthetic fabric applied over epoxy-laminated surfaces. After curing, the fabric is removed, leaving a perfectly smooth surface ready for light sanding or the next coat of epoxy, free of runs, shrinkage or low spots. Composition: 100% high-tenacity polyamide 6.6. Peel Ply fabrics are used to manufacture a wide range of products for aerospace, marine, recreational and other industrial applications.