High Perfomance
HEYgreen membranes rank among the most powerful fabrics in energy production.
KEDER & CRISTAL
Durable, gas-tight membranes for efficient biogas storage.
Reliable storage for renewable energy
In the field of energy production, HEYgreen membranes count amongst the most powerful fabrics. The membranes produced for flexible gas containers and made of PVC coated polyester fabric are produced in various designs with special, dirt repellent surfaces. They are used both as internal membranes for sealing of gas storage spaces and as UV and weather resistant outer membranes or flame resistant weather protection hoods. Depending on the design, the single layer systems and inner membranes have a methane gas permeability (test temperature 23 ° C) between 130 and 500 cm³/ (m²*d*bar).
Versatile functionality
Used both as inner gas-sealing membranes and as UV-, weather-, or flame-resistant outer covers.
Technical excellence
Methane gas permeability ranges between 130 and 500 cm³/(m²·d·bar) at 23 °C, ensuring reliable gas retention.
Fields of Applications
- Biogas membranes
- Gas storage
- Weather protection hoods
- Fermenter covers
- Gasholders
Properties
- Very good resistance to organic gases
- Very good resistance to liquid manure
- UV resistant
- Weather resistant
- Very low permeability of methane gas
- Antistatic version (optional)
Trusted performance in real biogas projects
Our HEYgreen® membranes are used in biogas plants worldwide — delivering durable, gas-tight performance in agricultural and industrial environments.
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Q&A - Biogas Membranes
Cristal materials are commonly used for transparent sidewalls, windows and enclosure elements that provide weather protection while maintaining visibility and natural daylight.
Keder creates a secure connection between textile membranes and structural profiles. It helps ensure reliable installation, alignment and tension distribution within the structure.
Flame-retardant variants may be required when structures must comply with specific safety regulations, event requirements or project specifications.
Low-wick constructions reduce moisture uptake within the fabric, helping improve durability and long-term performance in demanding outdoor environments.
mportant criteria include transparency requirements, structural design, weather exposure, mechanical performance, flame-retardant needs and the intended installation method.
Looking for the right membrane for your biogas project?
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.