Aside from our bottle and container cosures with diffusion-inhibiting inserts, we carry diffusion-tight knurled, toggle and sealing plungers. As early as in 1963, SABEU received its first protection of utility models for this development made by founder Karl-Heinz Sander-Beuermann.
The high diffusion tightness is achieved with the extrusion coating of aluminum with suitable plastics in combination with select seals. These seals are used for packaging of highly aggressive chemicals and ammunition.

We are pleased to develop diffusion-tight seals for your specific applications.