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NetComposites Ltd has transferred the rights and ownership of this website to Gardner Business Media Inc.

On 1st January 2020, NetComposites' media assets including netcomposites.com, newsletters and conferences were transferred to Composites World (Gardner Business Media).

This site is no longer being updated. Please direct all enquiries to netcomposites@gardnerweb.com.

For further details see our joint press release.

Vacuum Bag Moulding


A process in which a sheet of flexible transparent material plus bleeder cloth and release film are placed over the lay-up on the mould and sealed at the edges. A vacuum is applied between the sheet and the lay-up. The entrapped air is mechanically worked out of the lay-up and removed by the vacuum, and the part is cured with temperature, pressure, and time. Also called bag moulding.