Large Waterproof Cardboard Box

Zemejia's large waterproof cardboard boxes are made to give heavy-duty protection in damp, high-humidity spots. These boxes are crafted from multi-layer corrugated cardboard plus waterproof coating and adhesive—they can keep out moisture, acid, and corrosion, and still offer great strength. They’re perfect for moving bulky stuff, heavy machinery, or moisture-sensitive goods like food and electronics. And they’re recyclable, so you can use them in a sustainable way.

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Product Description

A large waterproof cardboard box is a waterproof packaging container made of multi-layer corrugated cardboard with oil film. A large waterproof cardboard box is composed of six layers of cardboard, including waterproof oil film, face paper, corrugated paper, interlayer paper, corrugated paper, and liner paper. It has good waterproof performance, compressive strength, impact resistance, and cushioning performance, which can effectively protect the built-in items from damage during transportation.

Specification Parameter	Conmon Value Range
Product Name	Large waterproof cardboard box
material	Corrugated paper shell
feature	Hard and waterproof
Load-bearing Capacity	generally suitable for mailing moderately heavy
Shape	cuboid
Brand	zemeijia
logo	customizable

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The waterproof advantages of large waterproof corrugated cardboard boxes

The waterproof characteristics of large waterproof corrugated cardboard boxes ensure stable load-bearing capacity at all times. Traditional large cardboard boxes are prone to moisture absorption and softening in humid environments (70% -90% humidity), and their load-bearing capacity may drop by more than 50% within 24 hours. Waterproof corrugated cardboard boxes, on the other hand, use composite PE film to block moisture penetration. Even if stored in a humid environment for one month, the load-bearing attenuation is still less than 8%, avoiding load-bearing failure caused by moisture and meeting the load-bearing needs of long-distance transportation and long-term storage of large products.

Characteristics of large waterproof corrugated cardboard boxes

Waterproof corrugated cardboard boxes have the function of beautifying and promoting products: their surface can print brand logos, product information, and creative patterns normally, balancing practicality and marketing value. At the same time, waterproof corrugated cardboard boxes still belong to green and environmentally friendly products. The waterproof materials used are mostly recyclable and easily degradable, which will not cause additional burden on the environment. The lightweight structure is easy to load and unload, which can reduce logistics transportation costs and truly achieve the dual advantages of "upgraded protection and environmental protection".

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Why Our Large Waterproof Cardboard Box Stands Out

If your business has ever dealt with ruined goods—whether it’s shipments soaked in rain during delivery or stored items damaged by humidity—you know how costly that moisture damage can be. Our large waterproof cardboard box isn’t just another packaging option; it’s the fix for that constant headache. We built it to handle the stuff that breaks regular cardboard: those sticky high-humidity warehouses, rough handling in transit, and even heavy loads that make flimsy boxes collapse. Traditional cardboard always fails where it matters most—when water hits or pressure builds. This one doesn’t.

The load-bearing advantages of large waterproof corrugated cardboard boxes

The load-bearing advantage of large waterproof corrugated cardboard boxes lies not only in targeted structural reinforcement, but also in the guarantee of waterproof performance for load-bearing stability. In terms of structural design, the lower box of the core load-bearing component will use thickened corrugated cardboard to enhance the bottom's compressive strength, which can stably support large products weighing 20-50kg. At the same time, the canopy is made of flat and stiff cardboard, with sufficient rigidity. When stacked and stored (usually 2-3 layers), the weight of the upper box can be evenly distributed to the lower canopy, without the risk of collapse.