They are usually provided by EVA foam suppliers as EVA foam sheets, EVA foam rolls, EVA foam puzzle mats, EVA foam tapes and so on. But do you really know this foam material? Here we are showing you the way to know EVA foam materials better.
Just simply follow us as below! You will get to know what the EVA foam is, how this foam material is manufactured and fabricated by Nanxin Rubber&plastic Products . This can definitely guide you when you want to buy EVA foam sheets.
Definition of EVA foam material
foam is made from blended copolymers of ethylene and vinyl acetate. In one sheet of EVA foam, The weight percentage of vinyl acetate usually ranges from 10 to 40%. Polyethylene material is another important element for EVA foaming production. The variation amount of foaming additives and catalysts in the molding process of EVA foam can affect its density, hardness, color, resilience and so on.
EVA foam materials are of closed cell foam structure. They have lots of excellent performances including good water & moisture resistance, excellent cushioning & shock absorption, strong heat insulation and long term durability etc.. They are quite frequently used by various industries so that we can find out it in many places and products, such as shoe insole, soft foam mats, foam packaging, yoga block, swimming kickboard, floor underlay, custom EVA foam components and so on.
Inside the foaming mold, the EVA sheets blended with catalysts will actually undergo a vulcanization process. After a period time of heating by high temperature, they will finally be foamed and become the EVA foam sheets with wanted colors and density etc.. The just finished EVA foam materials are thick sheets, but they are quite flexible and handy to be fabricated to any thicknesses, shapes, rolls and so on. We will introduce you some regular fabrication for EVA foam sheets below.
Take a quick look at EVA foam sheet specification
What is the advantages of EVA foam material on properties
As EVA foam materials has many excellent advantages and performances for actual applications, they has become one of the most popular foam materials. Here we will illustrate some benefits it brings.
Cushioning
EVA foam materials are foamed plastic and rubber blend, not solid and hard plastic and rubber material. Generally for low density and mid-density EVA foam materials, they can be naturally elastic and flexible. And they are also tougher than soft polyurethane foam. As they have good cushioning capability with economical cost, so people frequently use it as cushioning materials. You could find them in lots of products including knee pads, EVA foam mats, foam packaging and inserts, even golf putting green that people use the large EVA foam sheet as cushion underground.
Resilience
As mentioned before, when producing the EVA foam sheet, we can put elements of natural rubber and other resilient additives. This way we can formulate a highly resilient EVA foam materials once we utilize those resilient elements. Sometimes customer requires the high resilient EVA foam and it is actually the blend of EVA and rubber foam. A highly elastic EVA foam materials can be widely used to enhance the cushioning and durability of products. Some foam products you may see the highly resilient EVA foam materials such as squeegee blades, foam seals, foam gaskets, seat cushions and so on.
Insulation
EVA foam is a closed cell foam material. They are naturally good at insulation. Also other closed cell foam materials do have better insulation abilities than open cell foam. For production, EVA foam materials need to go through vulcanization procedure where they are formed with a cross-linked also closed cell molecular structures. The insulation abilities of EVA foam includes heat and thermal insulation.The can resist temperature from minus 30 degree centigrade to 80 degree centigrade. Besides, we can also put ire retardant additives and anti -static agents to enrich the insulation performance of EVA foam materials.
Resistance
Resistance ability of EVA foam materials is similar to its insulation. But here when we talk about its resistance ability, it refers to resistance to solvent and noise. Due to its closed cell foam structure, EVA foam materials in different densities or hardness can all have excellent resistance to water, moisture, oil and sound. The closed cell structure can make the foam have a smooth and flat surface that can help raise its resistance. In some products like flooring underlay, as you can see, EVA foam performs excellent resistance.
Buoyancy
EVA materials is widely used for marine products and applications. EVA foam has strong buoyancy in closed cell structure. They are excellent at water resistance. Also you should know the low density and mid density EVA foam materials are lightweight and portable. These advantages make them quite suitable and outstanding for marine products. You can easily see EVA foam materials for water floats, boat cushion mats, swim kickboards and even as foam parts in life jackets.
Durability
Plastic materials are naturally good for long term usage. EVA foam can be added natural rubber and EPDM material which can not only improve its resilience, but also enhance its durability and make it undergo a long term usage. Rubber materials are durable but they are so heavy that sometimes they are not handy and portable to use. Compared with rubber materials, EVA foam are much portable and easy to move around. After adding resilient additive for its production, EVA foam can actually performs better than rubber materials, also deliver a long term durability.
How we fabricate EVA foam material
People usually do not need the large and thick EVA foam sheets, so we have more foam fabrication capabilities to custom tailor those foam sheets. Below we are introducing you some popular and effective fabrication methods for EVA foam materials.
EVA foam applications and products
Utilizing EVA foam materials of different colors and densities also with various foam fabrication techniques, we can make much more foam products than you would imagine. Last we are showing you some of the EVA foam products.
EVA Shoes Insole
EVA foam materials are one of the most popular material as shoe insole. The EVA foam used for shoe industry takes up to 60% of all amount of EVA foam. The EVA insole are mainly manufactured by injection foam molding method. This technique is different from the molded foaming method we introduced in the beginning of this article.
EVA Toy
As EVA foam materials are available in various colors, it is easy to be eye-catching and attractive for children. They can also be easily fabricated to any custom sizes and shapes. EVA toys and crafts includes EVA building blocks, EVA swords, EVA masks, foam craft sheets and so on.
EVA Foam PackagingEVA foam materials are ideal for fabricating foam packaging. They are naturally cushioning and resilient material. They can also be flexibly fabricated by many machines and techniques like die-cutting and CNC contouring cut. You can always find them in products packaging and case inserts.
Swimming Kickboard
As above mentioned EVA foam has good buoyancy and they has excellent floating ability underwater. On the other hand, the EVA foam materials can be made in low density with lightweight property. Therefore they are quite suitable for marine market usage. Swimming kickboard is one of products made by EVA foam materials.
Foam Puzzle Mats
EVA foam puzzle mats are made of molded EVA foam materials usually with anti-slip texture finishing on surface. They are quite popular to use in many occasions such as home flooring, basement flooring, home gym and martial arts studios etc.. People like to use them because they are quite easy to install with interlocking tabs. Also foam puzzle tiles can provide good cushioning comfort for flooring.
EVA Foam Roller and Block
EVA foam material is frequently used to develop products for sports applications. The EVA foam rollers and blocks are currently popular yoga products. Foam rollers can be fabricated by both thermoforming and injection molding methods. On the other hand, EVA foam blocks are manufactured by custom foam sawing. They are also available in a lot of colors for customer to choose. Also here is the detailed guide for how to correctly use foam roller.
EVA Foam TapeBy using foam lamination and slitting capabilities, EVA foam materials can be fabricated as foam tapes with or without adhesive back. They can be used for lots of places where sealing and cushioning are needed. They are also low cost substitute for foam rubber tapes like Neoprene, PVC Nitrile blend and so on.
Custom EVA Foam Parts and Components
By exploiting foam fabrication capabilities especially foam thermoforming and lamination, EVA foam material can be processed as many 3D foam parts and components. They will provide better cushioning and shock absorption for applications they serve. Also foam lamination technique can make the EVA foam parts working well with fabric, film and adhesive backing.
EVA foam materials are ideal for fabricating foam packaging. They are naturally cushioning and resilient material. They can also be flexibly fabricated by many machines and techniques like die-cutting and CNC contouring cut. You can always find them in products packaging and case inserts.
EVA foam material is frequently used to develop products for sports applications. The EVA foam rollers and blocks are currently popular yoga products. Foam rollers can be fabricated by both thermoforming and injection molding methods. On the other hand, EVA foam blocks are manufactured by custom foam sawing. They are also available in a lot of colors for customer to choose. Also here is the detailed guide for how to correctly use foam roller.
By using foam lamination and slitting capabilities, EVA foam materials can be fabricated as foam tapes with or without adhesive back. They can be used for lots of places where sealing and cushioning are needed. They are also low cost substitute for foam rubber tapes like Neoprene, PVC Nitrile blend and so on.
By exploiting foam fabrication capabilities especially foam thermoforming and lamination, EVA foam material can be processed as many 3D foam parts and components. They will provide better cushioning and shock absorption for applications they serve. Also foam lamination technique can make the EVA foam parts working well with fabric, film and adhesive backing.