Semi-permeable VAP® membrane systems are full of tiny pores. Under vacuum conditions, small molecules of trapped air and gas can be reliably removed, while the large-molecule resin stays stable in the mould.
In the VAP® membrane system, barrier layers are connected (laminated) to a textile substrate. By the optimal combination of components and processing technologies during manufacture, it is possible to accurately control the essential process parameters: air permeability and the resin barrier.
Trans-Textil´s quality-assured VAP® membrane systems have been tested for various different resin types and process variants, and the company is continuously developing the technology in close cooperation with EADS.