Breather Fabric is a 130,150,250 and 300 gsm non-woven polyester felt fabric suitable for use as a breather layer when vacuum bagging prepreg laminates or acting as a breather and soaker layer when vacuum bagging wet-lay laminates. Common materials used in vacuum consumable breather fabric can include :

1. Non-woven polyester : This material is often used as the primary layer in the breather fabric due to its ability to allow air and excess resin to flow through while providing some thermal insulation.
2. Nylon : Nylon is often used as an outer layer to protect the inner layers and maintain the integrity of the breather fabric during the vacuum and curing process.
3. Silicone-coated materials : Some breather fabrics are coated with silicone to provide additional heat resistance and reduce the risk of the fabric sticking to the composite part during curing.
4. Felt materials : Felted materials can be used to enhance the breathability of the fabric and help distribute pressure evenly across the composite laminate.
5. High-temperature resistant materials : In applications where high curing temperatures are involved, materials with high-temperature resistance are used to ensure the breather fabric can withstand the thermal conditions.

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