Membranes

Since the earliest days of thermoforming, Steinbach AG of Detmold Germany has worked closely with thermoformed component producers as well as membrane press and vacuum former manufacturers in order to supply the most effective, high-quality membranes to the woodworking industry.

Steinbach’s silicone and natural rubber membranes are valued world-wide for their consistency and durability. Silicone is available in four different durometers, as well as smooth or textured surfaces, ensuring that each customer can find the correct membrane for their thermoforming application.

When the solar industry called with their needs for solar module lamination, Steinbach developed the Lamibran® and Solarbran® diaphragms. Specifically designed to resist the deterioration caused by EVA-outgassing, the Lamibran® is used around the world by the leading producers of both thin-film and crystalline solar panels.

Building on their success, Steinbach continues to research and develop products specific to the various industries they serve.

Membrane FAQs

What difference does the color make?: The color is really just to make it easier to differenciate between different material durometers.
So why do you have some different colors for the same durometer?: The answer to that is simply “Give the people what they want!” Some of our customers maintain that certain colors work better for them than another in the same mixture. Whenever we can, we'll accomodate that.
What’s better, a smooth or a textured surface?: It depends on what works best for your application. Some customers need a smooth surface for high-gloss finishes. Some prefer a textured or matte surface toward the heating platen for improved heat transfer. Some use the textured or matte surface down toward the foil to get a slightly different sheen on their foil, or to prevent darker foils from scuffing.
I call it a membrane, but my co-workers keep calling it a bladder and now you’re telling me some others call it a diaphragm! What’s the real name?: Stop giggling and call it whatever you like, we’ll know what you mean.