Your Professional EVA Foam Manufacturer!
STK Tape was founded in 1998 and has been deeply rooted in the adhesive tape industry for over two decades. We specialize in high-performance adhesive solutions for electronics, LED lighting, automotive, medical, energy, aerospace, home appliances, textile, and industrial manufacturing sectors. With continuous innovation and a customer-focused mindset, we have become a trusted partner globally.Our factories integrate R&D, production, testing, and customization, supporting large-scale OEM/ODM projects with fast delivery and flexible capacity.
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![EVA Foam Gasket – Closed Cell Lightweight Sealing And Cushioning Solution For Industrial And Consumer Applications]()
EVA Foam Gasket – Closed Cell Lightweight Sealing And Cushioning Solution For Industria...EVA foam gasket is a closed-cell, lightweight, and flexible sealing material offering excellent cushioning, shock absorption, and insulation. It is widely used in packaging, electronics, automotive,
Why Choose Us?
Advanced Equipment
STK Tape owns four modern production bases covering over 600,000 square meters, equipped with advanced clean rooms, high-precision coating lines, slitting machines, and state-of-the-art die-cutting facilities.
OEM/ODM
We provide a comprehensive portfolio of high-performance adhesive tape products and customized solutions to meet diverse industrial needs. Our offerings include world-renowned brands such as 3M, Nitto, and TESA original tapes, as well as precision-converted solutions tailored to customer requirements.
Production Market
STK exports to over 80 countries, and our products are widely recognized by global electronics, automotive, medical, and LED lighting manufacturers. We serve both multinational corporations and emerging local brands.
Our Certifications
We are certified with ISO 9001 and ISO 14001, ensuring that our products consistently meet global quality management and environmental protection standards.In addition, our products comply with major international certifications including REACH, RoHS, and UL, providing customers with safe, reliable, and environmentally friendly solutions for diverse industrial applications.
Product Parameters
|
Product Name |
EVA Foam Gasket |
|
Material |
EVA |
|
Color |
Black, white or customized |
|
Backing adhesive |
Single or double sided adheisve |
|
Temperature resistance |
-60℃ - 200℃ |
|
Thickness |
0.1mm ~ 10mm |
|
Size |
Customizable size |
|
Shape |
Dot, circle, square, rectangle, customized, etc. |
Advantages of EVA Foam
Lightweight: EVA foam is remarkably light, which makes it a popular choice for products that benefit from minimal weight, such as sports equipment or packaging.
Low Water Absorption: EVA foam has a fine, uniform closed-cell structure, which means that its cells are not interconnected. This structure provides excellent buoyancy and low water absorption, making it suitable for marine and water-related applications.
Shock Absorption: With its cushioning properties, EVA effectively absorbs impacts, protecting items during transport and offering comfort in footwear and protective gear.
Stress-Crack Resistance: EVA foam exhibits enhanced stress-crack resistance to ensure it remains in excellent shape even under demanding conditions.
Flexibility: It is a flexible material, allowing manufacturers to mold it into different shapes and sizes without losing its structural integrity.
Insulation: It provides thermal and acoustic insulation, making it useful in flooring, sports mats, and the automotive industry.
Chemical Resistance: EVA foam stands up well against most common chemicals, ensuring longevity and durability in diverse environments.
UV Resistant: EVA foam’s resistance to UV radiation makes it the first choice for outdoor products. For example, fishing rods often have an EVA foam grip.
Applications of EVA Foam Gasket
Automotive
EVA foam gaskets are used in automotive applications to provide sealing for doors, windows, sunroofs, and trunk lids. They help reduce noise, vibration, and heat transfer, enhancing the overall comfort and performance of the vehicle.
Electronics
EVA foam gaskets are commonly used in electronic devices to protect sensitive components from dust, moisture, and electromagnetic interference. They provide effective sealing for enclosures, connectors, and displays, ensuring the longevity and reliability of electronic products.
HVAC
In heating, ventilation, and air conditioning (HVAC) systems, EVA foam gaskets are used to seal ductwork, air handlers, and fan housings. They help improve energy efficiency by reducing air leakage and maintaining optimal temperature and humidity levels.
Medical
EVA foam gaskets are utilized in medical devices and equipment to provide sealing and protection. They help prevent contamination, ensure patient safety, and maintain the integrity of medical products.
Industrial machinery
EVA foam gaskets are employed in various industrial applications, such as sealing pumps, valves, and gearboxes. They help prevent leakage, reduce friction, and extend the lifespan of machinery components.
Raw Material Preparation
First, the two monomer raw materials, ethylene (E) and vinyl acetate (VA), are prepared. These monomers are the foundational components of EVA foam, and their ratio will directly affect the properties of the final product.
Mixing
In the mixing stage, ethylene and vinyl acetate are combined with specific blowing agents and catalysts. The blowing agents are responsible for creating bubbles in the subsequent steps, while the catalysts are used to accelerate the rate of the chemical reaction.
Co-polymerization Reaction
Under controlled conditions, usually in a high-pressure and high-temperature environment, ethylene and vinyl acetate undergo a co-polymerization reaction to form the EVA copolymer. This process requires precise control to ensure the formation of a copolymer with the desired properties.
Molding and Foaming
Next, the formed EVA copolymer is further processed into the desired shape. This may involve extrusion, injection molding, or other shaping techniques. Then, by heating or adding chemical blowing agents, the foaming process is triggered, creating a microcellular bubble structure within the material, resulting in a foamy texture.
Cooling and Setting
The foamed EVA material needs to be cooled to solidify its shape. At this stage, the foam material may also be cut or trimmed to meet specific size and shape requirements.
Post-processing
Finally, some post-processing steps may be required, such as surface treatment, coating, or bonding with other materials, to enhance the performance of EVA foam or add functionality.
Precautions When Using EVA Foam Gasket
Handling with care
EVA foam is relatively soft and can be easily compressed or distorted. Handle the gaskets gently to avoid creasing or bending them unnecessarily.
Avoid direct contact with sharp objects
As EVA foam can be punctured by sharp objects, always handle it with care to prevent tears and holes. Ensure that tools and surrounding surfaces are free from sharp edges.
Use appropriate tools
When cutting or shaping EVA foam gaskets, use tools specifically designed for soft materials to prevent damage. Blunt scissors or a knife with a flexible blade are preferable to sharp, hard tools that could cut through the foam too aggressively.
Maintain a clean workspace
Dust and debris can adhere to the surface of EVA foam, potentially affecting its sealing capabilities. Ensure your workspace is clean before handling the gaskets.
Adhere to application temperatures
EVA foam's physical properties can change with temperature. Be aware of the operating temperatures of the application and ensure that the foam is within its suitable temperature range for optimal performance.
Proper installation technique
Follow the manufacturer's recommendations for installation to ensure a proper seal is achieved. Improper installation can lead to gaps or poor adhesion, compromising the seal's effectiveness.
Compatibility with adhesives and chemicals
Before using adhesives or other chemicals to secure the EVA foam seal gaskets, check for compatibility to prevent chemical reactions that could degrade the foam.
Storage conditions
If gaskets need to be stored before use, ensure they are kept in the conditions previously outlined to prevent deterioration or deformation.
Packaging and Shipping
Packaging
Inner packaging is plastic bags, outer packaging is cartons, and can also be packaged according to customer requirements.
Shipping
Sea or air freight according to your requirements.
FAQ
We're professional eva foam manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized eva foam from our factory.
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