Insulation EVA Foam

Your Professional Insulation EVA Foam Supplier

Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.

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Why Choose Us

Quality Assurance

Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.

Extensive Experience

Weshare, since 2005, excels in transformer accessories and electrical engineering.

Export markets

With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.

Product Application

Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.

Advantages of Insulation EVA Foam

Eva foam is a versatile material known for its many advantages in various applications.

One key advantage of Eva foam is its excellent UV resistance, making it suitable for outdoor use without degrading in the sun.

Another advantage is its soft texture, providing cushioning and shock absorption, making it ideal for use in protective gear and padding.

Eva foam also has low water absorption, ensuring it remains lightweight and buoyant in wet conditions.

Additionally, Eva foam is highly durable, able to withstand wear and tear while maintaining its shape and structure.

The material is moldable into different shapes and sizes, allowing for customization and flexibility in design.

Eva foam exhibits impressive properties such as chemical resistance, making it suitable for use in harsh environments.

It also provides insulation in extreme temperatures, ensuring consistent performance in a wide range of conditions.

Paramenters

Name	Colour	Density(kg/m3)	Hardness (C-type, degree)	Tensile strength(kpa)	Tear elongation(%)	Compression permanent deformation(%)	Tear strength(kn/m)	Dimensions(mm)
EVA-35°	Black/Color	110±30	35°±5	≥500	≥150	≤40	≥2.0	1000×2000×50
EVA-45°	Black/Color	130±15	45°±10	≥400	≥150	≤30	≥1.8	1000×2000×50
EVA-75°	Black/Color	170±15	75°±10	≥600	≥150	≤30	≥1.8	800×1850×45

Types of Insulation EVA Foam

Standard EVA Foam

Standard EVA foam is the most commonly used type and is known for its versatility. It is widely used in industries such as footwear, sports equipment, packaging, and even automotive. This type of foam offers excellent shock absorption, durability, and cushioning properties.

Cross-linked EVA Foam

Cross-linked EVA foam is a more advanced version of standard EVA foam. It is manufactured using a cross-linking agent during the production process, which enhances the material’s overall performance. This type of foam is often used in applications requiring exceptional strength, chemical resistance, and heat insulation.

Expanded EVA Foam

Expanded EVA foam, also known as microcellular foam, features a finer cell structure compared to standard EVA foam. This type of foam has a more uniform appearance with tiny closed cells, making it firmer and denser. Expanded EVA foam offers excellent dimensional stability, buoyancy, and insulation properties.

Properties of Insulation EVA Foam

Closed-Cell Structure
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.

Density
The density of EVA foam can vary, typically ranging from 20 to 150 kg/m³. This range allows EVA foam to be customized for different levels of firmness and flexibility, depending on the specific application requirements.

Thermal Conductivity
EVA foam has a low thermal conductivity, typically around 0.033 W/m·K. This property makes it an effective thermal insulator, useful in applications where temperature control is important.

Compression Set
EVA foam exhibits a low compression set, meaning it can quickly recover its original shape after being compressed. This resilience makes it ideal for cushioning and impact absorption applications.

Tensile Strength
EVA foam has good tensile strength, typically ranging from 0.3 to 0.5 MPa. This strength contributes to its durability and ability to withstand mechanical stresses.

Elongation at Break
EVA foam can elongate significantly before breaking, with typical values around 200-600%. This high elongation provides flexibility and resistance to tearing under stress.

Shore Hardness
The Shore hardness of EVA foam can be adjusted during production, typically ranging from 25 to 60 Shore A. This allows for customization of the foam’s firmness for different applications.

UV Resistance
EVA foam has good resistance to ultraviolet (UV) radiation, which helps prevent degradation when exposed to sunlight. This property extends the material’s lifespan in outdoor applications.

Chemical Resistance
EVA foam is resistant to many chemicals, including oils, fuels, and solvents. This resistance makes it suitable for use in harsh chemical environments.

Industries Using Insulation EVA Foam

Automotive: EVA foam is used in automotive applications for padding, seals, and insulation. Its impact absorption and thermal insulation properties make it ideal for these uses.

Building and Construction: In the construction industry, EVA foam is utilized for thermal insulation, soundproofing, and as cushioning material in various building components.

Sports and Recreation: EVA foam is widely used in sports equipment such as padding for helmets, gloves, ski boots, and bicycle saddles. Its shock absorption and lightweight properties enhance performance and safety in sports gear.

Footwear: EVA foam is a popular material in the footwear industry, particularly in sports shoes, slippers, and sandals. It provides excellent cushioning, forms to fit the foot, and is lightweight, making it comfortable and durable.

Healthcare: EVA foam is used in biomedical applications, such as drug delivery systems, mouth guards, and orthopedic products. Its biocompatibility and inert nature make it suitable for medical uses.

Packaging: EVA foam is employed in packaging for its cushioning and protective properties. It helps protect delicate items during shipping and handling.

Marine: Due to its buoyancy and low water absorption, EVA foam is used in fishing gear, water sports equipment, and floating eyewear.

Consumer Products: EVA foam is also found in a variety of consumer products, including foam stickers for crafts, hot glue sticks, and even floating keychains.

Electronics: EVA foam is used in electronic applications to provide insulation and cushioning for sensitive components.

FAQ

Q: Is EVA foam good for insulation?

A: Yes, EVA (Ethylene Vinyl Acetate) foam is considered a good insulator, particularly for thermal and sound insulation. Its closed-cell structure helps trap air, making it effective at resisting heat transfer and reducing sound transmission.

Q: What happens to EVA foam when it gets wet?

A: Moisture's Impact on EVA Foam. While EVA foam's closed-cell structure provides resistance to moisture, prolonged exposure to water or any kind of liquid can lead to major issues. Firstly, EVA foam can absorb water, resulting in increased weight and reduced structural integrity.

Q: Does EVA foam deteriorate over time?

A: While EVA foam has a natural level of UV resistance that makes it great for outdoor furniture and objects, it will break down over time if overexposed. EVA foam is vulnerable to UV-induced degradation in more ways than one, and leaving it in the sunlight can result in discoloration and surface degradation.

Q: What is the problem with EVA foam?

A: One of the most significant issues with EVA foam is its vulnerability to UV rays. Prolonged exposure to sunlight can cause the foam to degrade, resulting in discoloration and a brittle texture. This sunburn damage not only affects the aesthetic appeal of the material but also its structural integrity.

As one of the leading insulation eva foam suppliers in China, we warmly welcome you to wholesale high-grade insulation eva foam made in China here from our factory. All our products are with high quality and competitive price.