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Engineered for outstanding chemical resistance and gas barrier performance across industrial, pharmaceutical, and specialty packaging applications.
Ethylene Vinyl Alcohol (EVOH) copolymer is one of the most effective gas and chemical barrier materials available in the global polymer industry today. When engineered specifically for chemical resistance applications, EVOH gas barrier film offers an unparalleled combination of impermeability to oxygen, carbon dioxide, aromas, and โ critically โ a broad spectrum of organic solvents, hydrocarbons, and aggressive chemical compounds.
EVOH's exceptional barrier properties stem from the tightly packed, highly crystalline structure of the vinyl alcohol segments in the polymer chain. These hydroxyl groups create an extremely dense network that prevents the permeation of gas molecules and chemical vapors at the molecular level. For industries where chemical containment, solvent resistance, and product integrity are non-negotiable, EVOH gas barrier film represents the gold standard in flexible packaging and industrial lining solutions.
EVOH barrier films resist permeation from hydrocarbons, aromatic solvents, chlorinated compounds, and a wide range of industrial chemicals โ making them indispensable in fuel tanks, chemical packaging, industrial liners, and pharmaceutical containment systems.
Unlike conventional polyethylene or polypropylene barrier films, EVOH-based multilayer structures maintain their chemical resistance performance even under thermal cycling conditions, UV exposure, and mechanical stress. The film's barrier integrity is preserved across a wide temperature range, from cold-chain logistics to hot-fill processing environments.
The chemical resistance of EVOH gas barrier film is directly related to its ethylene content (mol%). Lower ethylene content grades (e.g., 27โ32 mol%) provide superior barrier properties against gases and chemicals but may require careful moisture management, while higher ethylene content grades (e.g., 38โ44 mol%) offer improved moisture resistance and processability while maintaining excellent chemical barrier performance.
Key chemical resistance characteristics of EVOH barrier films include:
The global EVOH resin and barrier film market has experienced robust growth over the past decade, driven by increasing regulatory pressure on chemical containment, growing demand for sustainable packaging, and the rapid expansion of the automotive, pharmaceutical, and agrochemical sectors. According to industry research, the global EVOH market is projected to surpass USD 1.8 billion by 2028, with chemical resistance applications representing one of the fastest-growing segments.
Historically dominated by a small number of Japanese manufacturers, the EVOH market is now witnessing a significant shift as Chinese and global specialty chemical companies โ including TPS Specialty Chemical Limited โ invest heavily in domestic R&D and production capacity. This diversification is improving supply chain resilience and driving competitive pricing, making high-performance EVOH chemical barrier films accessible to a broader range of industrial end-users.
Increasingly stringent global regulations on VOC emissions, chemical containment, and hazardous material packaging are compelling industries worldwide to adopt EVOH gas barrier film solutions as a compliance-driven necessity, not merely a performance upgrade.
The automotive industry remains the largest single consumer of EVOH chemical resistance barrier films, particularly in multi-layer fuel tank systems where EVOH layers prevent hydrocarbon permeation and ensure compliance with CARB (California Air Resources Board) and Euro 6 emissions standards. Meanwhile, the agrochemical sector is emerging as a high-growth application area, with EVOH barrier films protecting concentrated pesticide, herbicide, and fertilizer formulations from chemical degradation and environmental contamination.
EVOH multilayer fuel tanks and fuel lines are now mandated by emissions regulations in over 40 countries, creating a massive, stable demand base for chemical-resistance-grade EVOH barrier films.
Concentrated pesticides, herbicides, and liquid fertilizers demand packaging that resists chemical attack. EVOH barrier films prevent container degradation, leakage, and cross-contamination throughout the supply chain.
Active pharmaceutical ingredients (APIs) and specialty chemicals require ultra-pure, chemically inert packaging. EVOH barrier films meet USP and EU pharmacopeia standards for chemical compatibility.
From industrial solvents to specialty coatings and adhesives, EVOH-lined flexible intermediate bulk containers (FIBCs) and drums provide superior chemical resistance vs. conventional polyolefin liners.
The lithium-ion battery industry increasingly relies on EVOH barrier films for electrolyte containment pouches, where resistance to aggressive organic solvents and moisture is critical to cell performance and safety.
EVOH's compatibility with recyclable multilayer structures and bio-based feedstock development positions it as a key material in the transition to circular economy chemical packaging solutions.
From automotive engineering to pharmaceutical cold-chain logistics, EVOH barrier films deliver measurable chemical resistance advantages across diverse sectors.
EVOH barrier films protect fresh produce from oxygen and ethylene gas permeation, extending shelf life while resisting chemical residues from pesticide treatments and modified atmosphere processing.
Sterile blister packs and pouches incorporating EVOH layers maintain chemical inertness against APIs, solvents, and moisture โ ensuring drug stability and regulatory compliance throughout the product lifecycle.
Vacuum skin packaging and thermoformed trays with EVOH barrier layers resist oxygen permeation and chemical migration from marinades, brines, and preservative solutions, maintaining product quality and safety.
EVOH barrier films in agrochemical packaging withstand concentrated chemical formulations, UV exposure, and temperature extremes, preventing container failure and ensuring safe storage and transport of crop protection products.
Moisture and oxygen barrier films with EVOH layers protect sensitive electronic components, PCBs, and semiconductor devices from chemical corrosion during storage, shipping, and assembly processes.
EVOH-lined flexible containers and geomembrane systems provide chemical resistance barriers in industrial waste containment, chemical storage tanks, and hazardous material transport applications.
EVOH barrier layers in aseptic cartons and pouches prevent chemical migration from packaging materials into sensitive dairy products, juices, and functional beverages, ensuring flavor purity and food safety compliance.
Laboratory reagents, specialty coatings, and high-purity chemical intermediates benefit from EVOH barrier packaging that prevents solvent vapor loss, oxidation, and chemical cross-contamination during storage and distribution.
The next generation of EVOH gas barrier films for chemical resistance is being shaped by several converging technological and market forces. As industries push the boundaries of performance, sustainability, and cost-efficiency, EVOH barrier film technology is evolving rapidly to meet these demands.
TPS Specialty Chemical's R&D center in Chongqing is actively developing next-generation EVOH resin grades optimized for chemical resistance in emerging application areas including lithium battery electrolyte containment, bio-pharmaceutical packaging, and sustainable industrial chemical liners.
The integration of digital manufacturing technologies โ including AI-driven process optimization, real-time barrier performance monitoring, and predictive quality control โ is also transforming EVOH film production. These Industry 4.0 capabilities enable manufacturers like TPS to deliver consistent, high-specification EVOH chemical barrier films at scale, with tighter property tolerances and faster product development cycles than ever before.
In the Chinese mainland, TPS has set up the R&D center in Chongqing City to focus on the research and development of high-tech materials and successfully launched high-barrier material EVOH resin. This product is widely used in food packaging, medicine and cosmetics with its excellent gas barrier properties and chemical stability, meeting the market's growing demand for high-performance materials. Our R&D team combines the technical advantages of multi-parties and is committed to continuously improving the quality and performance of products in order to better serve customers and the market.
The Chongqing center specifically focuses on developing EVOH grades with enhanced chemical resistance profiles, enabling TPS to serve demanding industrial sectors including automotive, agrochemical, pharmaceutical, and specialty chemical packaging markets with tailor-engineered barrier solutions.
TPS Specialty Chemical Limited has a team of experienced professionals, including chemical engineers, R&D experts and marketing personnel. With their deep industry knowledge and rich practical experience, they provide strong support for the company's continuous innovation and development. We always attach importance to the growth and training of employees, and strive to encourage teamwork and innovation in a positive working environment so that every employee can fully realize their potential.
Our manufacturing installations are equipped with state-of-the-art extrusion, compounding, and quality testing equipment, ensuring that every batch of EVOH chemical resistance barrier film meets the most demanding international standards including ISO, ASTM, and industry-specific certifications.
The company has independent research and development capabilities and multiple patents, advanced production processes and technological innovation capabilities, and can meet the market demand for high-quality EVOH chemical resistance barrier products.
Large plant and production scale enable efficient production capacity, achieving large-scale manufacturing of EVOH barrier films and reducing unit costs for industrial and commercial customers worldwide.
TPS provides diversified EVOH products covering multiple fields, including chemicals, new materials, and specialty barrier films, to meet different market needs from food packaging to industrial chemical containment.
The R&D center is located in Chongqing, with convenient transportation, facilitating raw material procurement and product transportation, and improving logistics efficiency for global customers.
The company focuses on sustainable development, actively adopts environmentally friendly materials and technologies, meets modern environmental standards, and enhances market competitiveness in the green chemistry era.
With branches around the world, especially in Hong Kong, TPS has established a robust global supply chain and customer service network, ensuring reliable delivery of EVOH chemical barrier solutions to any market.
Since its establishment in 1950, TPS Specialty Chemical Limited has always focused on innovation and development in the chemical industry. Headquartered in Argentina, after more than 70 years of development, TPS has grown into one of the leading companies in the global chemical industry. We have branches around the world, especially in Hong Kong, which has laid the foundation for our rapid growth in the global market. As a company with an international vision, TPS actively seeks in-depth cooperation with well-known local chemical companies in many countries and regions to jointly develop a series of innovative products with market competitiveness.
Founded in 1950, TPS Specialty Chemicals Co., Ltd. is a global supplier of specialty chemicals and polymer materials, providing a comprehensive product portfolio and full-service solutions to customers worldwide. Guided by the philosophy of "complete product categories, integrated services, and deep value-chain expertise," TPS focuses on EVOH resin, CPP and PVDC raw materials, specialty equipment, and high-performance plastic additives, delivering reliable and efficient solutions for diverse industrial applications. With decades of experience in the polymer and materials industry, TPS has developed strong partnerships with leading chemical manufacturers across China and international markets. As a professional polymer materials supplier and specialty chemicals distributor, we not only ensure consistent product quality and stable supply, but also support customers with application guidance, technical consultation, and customized sourcing solutions.
Looking to the future, TPS Specialty Chemical Limited will continue to expand its global business and actively respond to market challenges with the purpose of "innovation-driven, win-win cooperation." We believe that through close cooperation with partners, TPS will play a more important role in the global chemical industry and create greater value for customers and society.
Looking to the future, TPS Specialty Chemical Limited will continue to expand its global business and actively respond to market challenges with the purpose of "innovation-driven, win-win cooperation." We believe that through close cooperation with partners, TPS will play a more important role in the global chemical industry and create greater value for customers and society. Contact our technical team today to discuss your EVOH chemical resistance barrier requirements.
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