The most common fabric used for peel-ply applications is nylon - due to it's natural release properties, it's temperature capability, it's resin resistance (to all but phenolic resins), it's tear strength and it's relatively low cost.

It should be noted however, that to acheive the best possible characteristics within a nylon peel-ply fabric, a nylon 6.6 yarn should be used (as this exhibits considerably greater tear strength than a nylon 6 yarn), and the weave construction should be balanced with an equal number of "picks" (weft yarns - running accross the fabric width) and "ends" (warp yarns - running in the direction of the fabric). Peel-ply fabrics which do not have a balanced weave will have a tendancy to tear into strips when they are being removed from the cured composite component. The peel-ply fabric should also be "scoured" (washed) to remove lubricant oils used in the weaving process which otherwise remain as a contaminant on the yarn surface, and "heat-set" (dried) forcing the fabric to take up any potential inherent shrinkage generated during weaving - so that virtually no further shrinkage occurs during the composite component cure, thus avoiding potential component distortion (curling).