Your Trusted Custom EVA Case Manufacturer

An EVA case, made from Ethylene-Vinyl Acetate, is a type of molded plastic product known for its lightweight, durability, and shock-absorbing properties. Here’s a ultimate guide:

Material Composition:

• EVA is a polymer compound that combines ethylene and vinyl acetate. The ratio of these components determines the flexibility and other physical properties of the material.

Manufacturing Process:

• EVA cases are typically manufactured through a process called foaming, where the material is heated and mixed with a chemical blowing agent to create a foam structure. This foam is then molded into the desired shape, often using a technique called vacuum forming or compression molding.

Key Properties:

• Lightweight: EVA is considerably lighter than many other plastics, making it ideal for applications where weight is a concern.
• Shock Absorption: The material has excellent shock-absorbing capabilities, providing superior protection for sensitive items such as electronics and fragile equipment.
• Water Resistance: EVA has natural water-resistant properties, although it may not be completely waterproof.
• Chemical Resistance: It can resist a variety of chemicals, making it suitable for diverse environments.
• Thermal Insulation: EVA provides good thermal insulation, which can be beneficial for temperature-sensitive applications.

Applications:

• EVA cases are used extensively for protective packaging, particularly for electronic devices like tablets, smartphones, and laptops. They are also used for sporting goods, tools, and other items that require customized shapes and protection.

Customization:

• The material can be easily colored, patterned, or textured during the manufacturing process, allowing for a high degree of customization in terms of appearance and feel.

Environmental Considerations:

• While EVA is recyclable, its recyclability can be limited due to the presence of additives and the difficulty in separating it from other materials in a product.

Durability and Longevity:

• EVA cases are designed to be long-lasting, with a material lifespan that can far exceed that of other packaging materials.

When selecting the right grade of EVA (Ethylene-Vinyl Acetate) for case production, it’s essential to consider the specific properties you need based on the application and performance requirements of the case. Here’s a guide to help you choose the appropriate EVA grade:

1. VA Content: The grade of EVA is often determined by the content of Vinyl Acetate (VA), which typically ranges from 5% to over 40%. Higher VA content generally results in increased flexibility and elasticity, while lower VA content provides greater rigidity and chemical resistance.

2. Density: EVA density ranges from 0.91 to 0.93, affecting the transparency, glossiness, and overall feel of the material. Higher density EVA may be preferred for cases requiring structural integrity.

3. Melt Flow Index (MFI): MFI indicates the flow rate of the EVA material when melted. A higher MFI suggests better flow properties, which can be important for molding and processing. The MFI can affect the mechanical properties, fluidity, and stress crack resistance of the EVA.

4. Softness and Flexibility: If the case requires softness and flexibility, look for EVA grades with higher VA content. Grades with VA content between 40% and 80% are known for their pliability and rubber-like elasticity.

5. Temperature Resistance: Consider the temperature range the case will be exposed to. EVA with good low-temperature resistance (down to -58°C) is suitable for freezing environments.

6. Chemical Resistance: For cases that need to resist chemicals or solvents, choose an EVA grade with enhanced chemical resistance.

7. Environmental Stress Crack Resistance: If the case is likely to be exposed to environmental stress, select an EVA grade with high resistance to stress cracking.

8. Sound and Heat Insulation: For cases that require insulation properties, choose EVA grades with closed-cell structures that offer good sound and heat insulation.

9. Moisture Resistance: EVA grades with good moisture and water resistance are ideal for cases that will be exposed to humid conditions or water.

10. Processing Method: The manufacturing process of the case can influence the choice of EVA grade. Some grades may be easier to process using techniques like injection molding, extrusion, or blow molding.

11. Regulatory Compliance: Ensure the EVA grade complies with relevant safety and environmental regulations, especially if the case will come into contact with food or be used in a medical setting.

Choosing the right coating for your EVA case involves considering several factors to ensure the coating enhances the case’s functionality, appearance, and durability. Here’s a guide to help you make the right choice:

1. Purpose of the Coating: Determine the primary function of the coating. Is it for added durability, improved appearance, increased water resistance, or UV protection?

2. Material Compatibility: Ensure the coating is compatible with EVA material. Some coatings may not adhere well to certain plastics, leading to peeling or flaking over time.

3. Durability: Look for a coating that enhances the wear resistance of the EVA case, protecting it from scratches, scuffs, and general wear and tear.

4. Weather Resistance: If the case will be exposed to outdoor conditions, choose a coating that offers protection against sunlight, rain, and temperature fluctuations.

5. Aesthetic Appeal: Consider the visual impact of the coating. Some coatings provide a glossy finish, while others offer a matte or textured appearance.

6. Texture: The coating can affect the feel of the case. Some coatings result in a smooth surface, while others might offer a grippy, textured feel.

7. Chemical Resistance: If the case is likely to come into contact with chemicals, select a coating that offers resistance to corrosion or degradation.

8. Ease of Application: Some coatings are easier to apply than others. Consider the method of application (e.g., spray, dip, or brush) and whether the process is feasible for your production scale.

9. Curing Time: The coating should have a curing time that aligns with your production timeline. Some coatings may require extended periods to fully cure and harden.

10. Cost: Evaluate the cost of the coating in relation to the benefits it provides. More expensive coatings may offer superior properties but should be justified by the value they add to the final product.

11. Environmental Considerations: Opt for coatings that are environmentally friendly, especially if your products are marketed as eco-conscious.

12. Regulatory Compliance: Ensure the coating meets safety and regulatory standards, particularly if the case is used for products that come into contact with food or are used in medical applications.

13. Sample Testing: Before committing to a particular coating, test it on a sample batch of EVA cases to evaluate its performance, appearance, and application process.

Our factory has a low MOQ of 100 pieces for custom eva case, making it convenient for small and large orders.

We only provide quality samples due to the long time and high cost of customized samples. But we provide renderings of existing products design services. Usually, we’ll provide the product effect picture with your logo as a reference first. Click to learn more about FREE SAMPLE

If you don’t have an artwork, we have professional designers with over 10 years experience, they may make your fantastic ideas come ture. We support free design.
If you have your own artwork, please try to mail it with the following requirements.
File Formats: Adobe Illustrator(.ai), Coral Draw, Photoshop(.psd), PDF, high-quality JPEG and TIFF with above 300 DPI.please click to learn more about artwork service.

The production time of personalized eva case is generally 15-35 days, depending on different styles ,process, quantity. If it’s just printing(like screen print , heat transfer print and woven label) on existing inventory styles, the time for mass production is 3-7 days. It can be controlled according to the actual situation of the order, please feel free to contact us.

Generally we customers make payment by 1.TT(electronic funds transfer) From All Countries ,2.Western Union,we may also accept small payment by 3.Paypal (4.Credit Card Accept) for sample order and,5. LC(letter of credit) for big order.6.Alibaba Trade Assurance. click to learn more payment information.

It depends on the shipping channel, divided into sea, rail, and air. We deliver the small order by express like DHL, FedEx, UPS and TNT(5-7 working days). If your order is big, we may choose air transportation or shipment by sea.The general shipping time by sea is 40-45 days.click hear to learn our shipping solutions.