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Eva Storage Box Material Comparison: Cardboard vs. EVA Hard Shell, Differences in Moisture and Pressure Resistance

2025-12-03 16:14:26
Eva Storage Box Material Comparison: Cardboard vs. EVA Hard Shell, Differences in Moisture and Pressure Resistance

They both have their uses, but they behave quite differently when it comes to moisture and pressure. Storage boxes are not just plain containers, they are designed to keep what’s inside from being damaged. Well, that’s also why choosing the right material is so important. 

There is also something to be said for buying storage boxes in bulk:

You buy lots at once because you want them to last and work well without getting wonky. Boxes made of cardboard are cheaper and more readily available. They’re popular with wholesale buyers because they require less up front. The only thing holding cardboard together is pressed-together paper fibers. That makes it light and portable, but also weak when wet. When a Eva Case the cardboard begins to soften, eventually tearing or losing its shape. That’s a big problem if you’re using them to store things that need to remain dry, or if the boxes are stacked heavily. Cardboard boxes are also more likely to be crushed if you place heavy items on top. For an easy example, if you are shipping toys or clothes in cardboard boxes, those boxes may end up getting squished during shipment. That creates the items inside to become damaged or dirty. 

To resistance against moisture: 

When it rains and humidity is high, cardboard absorbs water like a sponge. This renders it brittle and easily torn. Try putting important documents or electronics in cardboard boxes on a rainy day and you’ll end up losing those things. The Cap Case from HongJun is special. The material is water repellant, so that water rolls off rather than soaking in. It keeps the inside dry even if the box contacts water, or is located in a moist area. 


This is especially important if you will be keeping items in storage for long periods of time or in areas where humidity is a problem. Also, EVA boxes are even more adept at pressure when wet. Damp cardboard is weakened and collapses under pressure. EVA hard shell boxes, thick and tough don't lose shape even if get wet. Which means you can stack a bunch of boxes without fear they’ll all come crashing down. Our dealing experience at HongJun has proven that customers who use EVA hard shell boxes to save money over time, buying our quality product, they don’t have the need to replace damaged box often. While cardboard may appear to be the less expensive option at the outset, costs rise when boxes fail. 

Selecting EVA storage boxes investing in protection

For pressure resistance we're referring to how well a Glass Case can continue to keep its shape while withstanding weight and force. Carton storage boxes are created from layers of paper that have been compressed. They can support a little weight, Though they are not strong when anything heavy lies on them. Cardboard boxes can bend, crush and even break if too much pressure is added. This is because cardboard is a soft and readily shifting material, and can deform even under its own weight. 


EVA hard shell storage boxes, alternatively, such as those by HongJun are made from a special type of plastic foam covered with a hard outer layer. This substance is much stiffer and can support more added weight to prevent deformation. EVA boxes, with pressure applied, can absorb force and recover to the original. This means they protect the contents better and, when stacked or stuffed with heavy items, are less susceptible to wearing out. 

Where to Get EVA Storage Box Wholesale with Best Durability

This is also useful if you’re sorting a large room, or you’d like to sell the boxes yourself. And HongJun ensures that each package is meticulously inspected to maintain the quality of the item. You may get these boxes by requesting directly to HongJun, through their website or customer service. They’ll guide you through choosing a size and style that’s best for your needs. By selecting HongJun wholesale EVA storage box you will receive a longer lasting product that better protects your items than regular cardboard boxes. This helps stretch your money because you won’t have to replace the boxes as frequently. 

Between Cardboard And EVA Storage Boxes

When something is durable it stands the test of time or long use without breaking down. If we compare cardboard storage boxes with EVA boxes from HongJun, then the duration of using them will vary greatly. Cardboard is paper, so it damages very easily. When they get wet, the furry surface softens and can disintegrate. And even if it doesn’t get wet, cardboard can become weak with many uses or when heavy things are loaded inside. Over time, cardboard boxes may become torn, or crushed, and lose the ability to protect the contents. 


These boxes do not lose their shape and strength after multiple uses. They’re scratch and dent resistant, too they remain looking good for a long time. EVA cases are great in this way if you need a way of safely storing something for months or years. Another good thing is to be able to clean EVA boxes with water. You can even wipe them down with a damp cloth without fear of damage. Cardboard boxes can’t be cleaned this way since water would destroy them. This cleaning feature allows for EVA boxes to be kept fresh smelling and thus enhancing the lifespan.