Technical Fabrics & Peel Plies


Against the surface of the last laminate, a peel ply can be applied. Peel ply serves two functions. First, it eliminates or reduces the need for sanding or grinding prior to secondary bonding operations. Second, peel ply may be left on the laminate. This will keep it clean until the next step in construction.


Peel Plies are woven fabrics which are generally applied as the first material in the composite laminate bagging sequence. They are designed to be peeled from the surface following cure to leave a textured surface, which is clean and contaminant free. This surface is then ideally prepared for secondary bonding, filling, or painting and does not usually require any further mechanical abrasion. The textured surface left on the laminate is an imprint of the weave of the peel ply and therefore fine weaves will impart a finely textured surface. Peel plies are usually made from polyamide (nylon) or polyester fibers. Polyamide fabrics are more commonly used, though polyester fabrics must be used with phenol-based resin systems. It is important to store peel plies in a cool and dry environment, ensuring the fabric is kept clean and free from possible contamination.


PTFE is a Teflon coated fiberglass for a slippery, durable surface with excellent chemical and temperature resistance. PTFE is used in a variety of ways through the vacuum bagging process, as a tool tape or a porous or non-porous fabric. As a release fabric it is designed to be in direct contact with your laminate during vacuum bagging and infusion processes.

Breather Cloth

Breather Cloth is a material, which will not compress under pressure to the extent that air cannot be drawn through it. Often, an otherwise perfectly sealed bag will not develop full vacuum pressure because the bag under the hose fitting is pinched off preventing the evacuation of air from the rest of the part.

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Fiberglass fabrics have many unique and outstanding properties, which provide design opportunities for the improvement of existing products and the development of new, lightweight, and cost-efficient products. Inorganic fiberglass textile fibers will not rot, mildew, or deteriorate. They resist most acids, have excellent thermal properties, and high tensile strength ideal for the transportation industry. When choosing your fiberglass, you must consider thickness, weight, construction, yarn size and finish desired. All fiberglass products offered are supported with BMS specification 9-3, AMS or Mil specifications to fulfill all rigid requirements within aerospace manufacturing requirements.