High Perfomance
HEYgreen membranes rank among the most powerful fabrics in energy production.

Reliable textile solutions engineered to meet the highest demands of marine and aquaculture applications, combining outstanding durability, resistance to harsh environmental conditions, and long-term performance to ensure safe, efficient and dependable operation in challenging aquatic environments.
Technical textiles for inflatable boats and marine applications combine lightweight construction with exceptional durability. They are designed to withstand UV exposure, saltwater, abrasion and mechanical stress while maintaining flexibility and reliable airtightness.
HEYgreen membranes rank among the most powerful fabrics in energy production.
Used both as inner gas-sealing membranes and as UV-, weather-, or flame-resistant outer covers.
Methane gas permeability ranges between 130 and 500 cm³/(m²·d·bar) at 23 °C, ensuring reliable gas retention.


Our HEYgreen® membranes are used in biogas plants worldwide — delivering durable, gas-tight performance in agricultural and industrial environments.
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What is the methane permeability class?
How do the membranes perform in cold climates?
Are they available in customized sizes?
What certifications do the biogas membranes meet?
Our experts support you with customized textile solutions — from gas storage domes to protective outer membranes. Let’s find the perfect fit for your system.