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Our core EVOH resin product line engineered for outstanding chemical resistance in demanding packaging and industrial environments.
Ethylene Vinyl Alcohol (EVOH) copolymer is widely recognized as one of the most effective plastic materials for chemical resistance in modern industrial and commercial packaging. Its unique molecular structure — combining the flexibility of polyethylene with the barrier performance of polyvinyl alcohol — creates an impermeable shield against gases, solvents, oils, and a broad spectrum of aggressive chemicals.
EVOH's chemical resistance stems from its tightly packed crystalline structure and strong intermolecular hydrogen bonding, which prevent the permeation of oxygen, carbon dioxide, hydrocarbons, and organic vapors. This makes it indispensable wherever product integrity, safety, and shelf-life extension are critical.
In multilayer film and co-extrusion applications, EVOH acts as the functional barrier core layer, protected by moisture-resistant outer layers such as PE, PP, or PA, enabling deployment in humid environments without sacrificing its chemical resistance properties.
EVOH Copolymer
Ethylene Vinyl Alcohol
Superior barrier against:
O₂ · CO₂ · Hydrocarbons
Solvents · Organic Vapors
Oils & Greases
Compared to PVDC, nylon (PA), and metallized films, EVOH delivers up to 10,000× lower oxygen transmission rates at dry conditions, making it the gold standard for chemical resistance in multilayer plastic structures. Its recyclability and compatibility with modern co-extrusion processes further cement its role as the barrier material of choice for the 21st century.
The global EVOH market is evolving rapidly, shaped by regulatory pressures, sustainability mandates, and the rise of high-performance packaging requirements across multiple sectors.
As global regulations tighten around single-use plastics and non-recyclable multilayer films, EVOH's compatibility with polyolefin-based recyclable structures has become a major competitive advantage. Brand owners and packaging engineers increasingly specify EVOH-based chemical resistance layers to meet both performance and sustainability targets simultaneously.
The automotive sector relies heavily on EVOH for fuel tanks, fuel lines, and emission control components due to its exceptional hydrocarbon and chemical resistance. With stricter evaporative emission standards (PZEV, LEV III) in the US, EU, and China, demand for EVOH in co-extruded fuel system components continues to accelerate.
Regulatory bodies including the FDA and EMA increasingly require advanced chemical barrier packaging for moisture-sensitive drugs, biologics, and nutraceuticals. EVOH's inert chemical nature and proven resistance to pharmaceutical solvents and active ingredients make it a preferred choice for blister packs, pouches, and vials.
Modern precision agriculture demands films that resist agrochemicals, fertilizers, and UV degradation over extended periods. EVOH-based multilayer agricultural films provide chemical resistance against pesticides and herbicides while maintaining optical clarity for greenhouse applications — a fast-growing segment in Asia-Pacific and Latin America.
The personal care and household chemical industries are adopting EVOH barrier layers in squeeze bottles, tubes, and flexible pouches to prevent chemical migration, maintain product efficacy, and eliminate off-odors. This segment is experiencing double-digit growth driven by premiumization trends in beauty and home care categories.
Advances in 5-layer, 7-layer, and 9-layer co-extrusion technology are enabling thinner, more efficient EVOH barrier layers while maintaining equivalent chemical resistance. This reduces material costs, improves flexibility, and opens new application windows in retort packaging, aseptic filling, and active packaging systems.
Understanding where and how EVOH's chemical resistance properties deliver maximum value across commercial and industrial sectors.
In meat packaging, EVOH serves as the critical oxygen barrier layer that prevents lipid oxidation and rancidity. Its chemical resistance to fatty acids and oils ensures that packaging integrity is maintained throughout cold-chain distribution. Vacuum skin packaging (VSP) and modified atmosphere packaging (MAP) applications rely on EVOH's impermeability to maintain product color, texture, and safety.
Fresh produce emits ethylene gas, which accelerates ripening and spoilage. EVOH barrier films resist ethylene permeation while also blocking CO₂ and O₂, creating an optimal modified atmosphere. Its chemical inertness ensures no interaction with natural produce acids, waxes, or essential oils, preserving flavor and nutritional content.
EVOH's chemical inertness makes it ideal for pharmaceutical applications where any interaction between packaging and active pharmaceutical ingredients (APIs) is unacceptable. It provides a reliable barrier against moisture vapor, oxygen, and chemical contaminants, ensuring drug stability and compliance with USP and ICH Q1A guidelines for packaging integrity testing.
EVOH is the material of choice for co-extruded multilayer fuel tanks and fuel filler pipes due to its outstanding resistance to gasoline, diesel, ethanol-blended fuels, and aromatic hydrocarbons. It meets stringent permeation standards including CARB LEV II and Euro 6 regulations, making it essential for modern low-emission vehicle platforms including hybrids and EVs with range-extender systems.
Specialized EVOH grades for agricultural applications provide chemical resistance against herbicides, fungicides, and fertilizer solutions that would degrade conventional polyethylene films. Biodegradable EVOH variants, such as TPS EVOH 2901-AF, combine UV resistance with chemical barrier performance, addressing the growing demand for sustainable precision agriculture solutions.
In industrial settings, EVOH-lined flexible intermediate bulk containers (FIBCs), chemical drums, and geomembranes provide reliable containment of solvents, acids, and chemical vapors. EVOH's resistance to a broad chemical spectrum — including ketones, esters, and aromatic compounds — makes it a trusted material for hazardous chemical storage and transport applications.
In the Chinese mainland, TPS has established its R&D center in Chongqing City, focused on the research and development of high-tech materials with an emphasis on chemical resistance performance. The center has successfully launched high-barrier EVOH resin grades optimized for specific chemical resistance requirements across food packaging, medicine, cosmetics, and industrial applications.
Our R&D team combines technical advantages from multiple disciplines — polymer chemistry, materials science, and process engineering — and is committed to continuously improving the chemical resistance, processability, and sustainability profile of EVOH products to better serve customers and evolving market demands.
TPS Specialty Chemical Limited maintains a team of experienced professionals, including chemical engineers, R&D experts, and marketing personnel with deep industry knowledge in chemical resistance materials. Our large-scale production facilities enable efficient, cost-effective manufacturing of EVOH resins with consistent quality and chemical performance specifications.
We prioritize employee growth, teamwork, and innovation, fostering a culture where technical breakthroughs in chemical resistance technology are continuously pursued and rapidly commercialized for global markets.
TPS delivers a unique combination of technical excellence, production scale, and sustainability leadership in EVOH chemical resistance materials.
TPS holds independent R&D capabilities and multiple patents in EVOH chemical resistance technology. Advanced production processes and continuous technological innovation enable us to meet the most demanding market requirements for high-quality, high-performance barrier materials.
Our large-scale plant and production capacity deliver efficient, high-volume manufacturing of EVOH chemical resistance materials, enabling large-scale supply with reduced unit costs and consistent product quality for global customers.
TPS provides a diversified EVOH product portfolio covering food packaging, pharmaceutical, agricultural, dairy, and industrial chemical resistance applications — offering customers a comprehensive one-stop sourcing solution for all barrier material needs.
With our R&D center strategically located in Chongqing and global branches including Hong Kong, TPS benefits from convenient raw material procurement, efficient product transportation, and rapid market access across Asia and international markets.
TPS is committed to sustainable development, actively developing biodegradable and environmentally friendly EVOH chemical resistance materials that meet modern environmental standards while maintaining superior barrier performance and market competitiveness.
Since 1950, TPS has built deep partnerships with leading chemical manufacturers across China and international markets, ensuring stable supply chains, competitive pricing, and technical support for EVOH chemical resistance applications worldwide.
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, with branches around the world, especially in Hong Kong, which has laid the foundation for 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. 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 chemical resistance solutions for diverse industrial applications.
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.
Get Product InquiryIndependent R&D capabilities, multiple patents, advanced production processes and technological innovation for high-quality chemical resistance products.
Large plant and production scale for efficient capacity, large-scale manufacturing, and reduced unit costs across EVOH chemical resistance grades.
Diversified products covering multiple fields including chemicals, new materials, and specialty EVOH barrier resins to meet different market needs.
Sustainable development focus, actively adopting environmentally friendly materials and technologies that meet modern environmental standards.
Real-world application environments where TPS EVOH chemical resistance materials deliver proven performance.
EVOH barrier films resist ethylene permeation, organic acids, and natural waxes from fresh produce, maintaining optimal modified atmosphere conditions and extending shelf life without chemical interaction.
EVOH's chemical inertness provides a reliable barrier against APIs, solvents, and moisture, ensuring drug stability and regulatory compliance for blister packs, pouches, and primary pharmaceutical containers.
EVOH's chemical resistance to fatty acids and oxygen prevents lipid oxidation in meat packaging, maintaining product color, flavor, and safety throughout the cold-chain distribution cycle.
Specialized EVOH grades resist herbicides, fungicides, and fertilizer solutions, delivering durable chemical barrier performance in precision agriculture films and greenhouse applications.
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. Whether you require EVOH resins for food packaging, pharmaceutical containment, agricultural films, or industrial chemical resistance applications, our team is ready to provide tailored solutions.
Inquiry NowExplore TPS's full range of EVOH high-barrier materials engineered for chemical resistance across diverse industries and application environments.
