MSD specializes in producing PVC rigid film / Semi-rigid film, PVC Stretch Ceiling film, PVC coated and laminated Fabric, Flex Banner, Mesh etc,.
MSD specializes in producing PVC rigid film / Semi-rigid film, PVC Stretch Ceiling film, PVC coated and laminated Fabric, Flex Banner, Mesh etc,.
MSD specializes in producing PVC rigid film / Semi-rigid film, PVC Stretch Ceiling film, PVC coated and laminated Fabric, Flex Banner, Mesh etc,.
MSD specializes in producing PVC rigid film / Semi-rigid film, PVC Stretch Ceiling film, PVC coated and laminated Fabric, Flex Banner, Mesh etc,.
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This material is a specialized, high-specification PVC-coated fabric engineered specifically for the construction of gas-tight, flexible covers for anaerobic biogas digesters and gas storage tanks. The key requirement is its exceptional resistance to Methane (CH4) and Hydrogen Sulfide (H2S) – the corrosive components of biogas. The material must offer extremely low gas permeability, high-strength seam weldability, and integrated UV/anti-fungal protection, as these covers are constantly exposed to both corrosive gases internally and harsh weather externally. Typically supplied in dual layers for added protection and gas monitoring.
The Biogas Digester PVC Cover Material is a highly specialized, environmental solution from the Industrial Solutions line of the Zhejiang MSD Group Share Co., Ltd. Since 2002, our Haining City, Zhejiang, facility has been a leader in advanced, chemically robust polymer membranes for the global renewable energy sector.
This material is the certified, high-performance choice for contractors and operators of modern biogas and anaerobic digestion facilities.
| Characteristic | Value Range / Standard |
| Fabric Weight Range | 950GSM−1400GSM |
| Methane Permeability | Ultra Low (Certified Standard) |
| H2S Resistance | Superior (Tested for ≥5000 ppm) |
| Base Fabric Denier | 1000D×1000D (Low Stretch) |
| Fire Retardancy | B1, NFPA 701 (Required) |
| Weld Seam Strength | >95% of ultimate tensile strength |
Selection requires absolute verification of gas permeability and chemical resistance to the specific biogas composition.
H2S Concentration: If the biogas has high H2S content, specify the highest resistance grade (e.g., 1400GSM with enhanced anti-corrosion additives) for longevity.
Operational Pressure: Lighter weights (950GSM) are suitable for low-pressure storage; heavier weights are needed for structural domes under higher pressure.
UV/Mildew Protection: As these covers are typically dark and outdoor, high-grade UV and anti-fungal treatments are essential for the external layer.
The process is specialized to ensure ultra-low gas permeability and resistance to corrosive elements.
Additive Integrity:
Anti-corrosion (H2S-resistant) additives are precisely blended and fully dispersed to protect the material from chemical attack internally.Permeability Testing: Small samples are tested in specialized gas permeation cells to quantify the Methane leakage rate and ensure it meets industry standards.
Finishing: The external layer is often treated with a dirt-resistant finish to prevent accumulation of particulates that could impede solar heating.
Q: Is a single layer of this fabric sufficient for biogas digesters?
A: Most modern biogas storage requires a dual-membrane system (inner gas holder and outer protective membrane). This material is ideal for both layers, providing high gas tightness and weather protection.
Q: Can the fabric be supplied in non-standard colors?
A: Yes, but the standard color is often dark green or black to maximize solar heat absorption and support the digestion process temperature.
Zhejiang MSD Group Share Co., Ltd. was established in 2002, and the company is headquartered in the Warp Knitting Industrial Park, Haining City, Zhejiang Province. MSD has always insisted on independent innovation, and has always regarded technology and product innovation as an important measure for the company to improve our nuclear competitiveness.Since our establishment, through continuous research and development, MSD has developed into a three-dimensional product system integrating environmentally friendly decorative materials, functional sports materials and other flexible materials and covering multiple application scenarios.
We are China Biogas Digester PVC Cover Material Suppliers and Custom Biogas Digester PVC Cover Material OEM Company. Our main products include: Advertising flex banner, PVC calendered film, PVC ceiling film, Drop stitch fabric, sunshade fabric, PVC waterproof fabric, PVC mesh fabric,PVC tarpaulin and other products.
MSD welcomes new and old customers to achieve brilliant careers together!
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+86-(0)573-87985868
+86-(0)573-89237968
NO.11 Hongqi Road, warp knitting industrial park of Haining City, Zhejiang Province, China
