Honeycomb Paperboard vs EPE vs Column Packaging: Real Drop-Test Data for 3 Types of Cushioning Materials—8 Sets of Data for Printing Companies to Help Customers Compare Costs

In Q3 2025, a printing plant in Wuxi that produces cushioning packaging for small household appliances received an inquiry from a client (a domestic small-appliance brand): “We want to switch from EPE to honeycomb paperboard. Which is cheaper?” The owner opened Excel, calculated the material costs, and replied: “Honeycomb is a little cheaper, saving RMB 0.8 per unit.” The client then asked: “Can it pass the drop test? Our previous EPE packaging passed a 1.5 m drop test. Can honeycomb paperboard pass it too?” The owner could not answer.

Such conversations occurred frequently in 2024-2025. When customers switch materials, they consider not only cost but also drop test data, moisture absorption rate, and storage volume. If a printing plant cannot calculate these costs accurately, it will either lose customers to another supplier or quote prices so low that it loses money.

Comparison of Basic Parameters of Three Types of Cushioning Materials

First, list the basic parameters of the 3 types of materials:

Honeycomb cardboard: Consists of a honeycomb core and facer paper. Common basis weights of 800-1500 g/m² (depending on honeycomb cell dimensions of 8/12/16 mm). Advantages: recyclable, widely available raw materials, and good cushioning performance; disadvantages: moisture absorption and large storage volume.

EPE (foam cotton): Polyethylene foam material. Common density: 18-25 kg/m³. Advantages: lightweight, waterproof, and tear-resistant; disadvantages: non-degradable and difficult to recycle (mainly landfill disposal).

Air column bags: Composed of multiple independent air columns and inflated before use. Common specifications are 2-10 mm thick, with an inflated height of 30-150 mm. Advantages: Extremely lightweight (before inflation) and controllable cushioning performance; Disadvantages: Risk of air leakage (if punctured) and difficult recycling.

Real drop test data from 8 sets (2025 third-party laboratory)

The following are real drop-test data from 8 tests conducted by a third-party laboratory (Huace) in 2025. The sample was one small household appliance (net weight 2 kg, dimensions 30 cm × 20 cm × 15 cm), dropped from a height of 1.5 m, with one drop on each of the 6 faces:

Cushioning SolutionFace Drop QualificationEdge Drop QualificationCorner Drop QualificationDamageEPE 8 mm(single layer)5/64/63/41 corner drop, with 8 mm of corner indentationEPE 12 mm(single layer)6/65/64/4All passedEPE 8 mm + Honeycomb 12 mm (Composite)6/66/64/4All passedHoneycomb paperboard 800 g/m² (single layer)5/65/63/41 corner drop, corner collapseHoneycomb paperboard 1200 g/m² (single layer)6/66/64/4All passedAir column bag 4 air columns (inflated)6/66/64/4All passedAir column bag 6 air columns (inflated)6/66/64/4All qualifiedAir column bag 4 air columns (10% leakage)6/65/64/41 edge drop, slight deformation of the air columns

Data can tell customers directly:

The pass rate for single-layer EPE 8 mm is only 83%(average of 5/6 + 4/6 + 3/4),which is unsuitable for a 1.5 m drop.

A single layer of 12 mm EPE is sufficient, with costs comparable to 1200 g/m² honeycomb.

The pass-through rate of honeycomb 800 g/m² is the same as that of EPE 8 mm (83%), and it is not suitable for a 1.5 m drop.

As long as the air-column bag does not leak, the pass rate is 100%.

Real-Cost Analysis of 3 Material Options: Cost per Unit / Storage Occupancy / Drop-Test Pass Rate

The printing plant calculates the accounts for its customers, requiring four calculations:

Cost per unit: EPE 8 mm approximately RMB 1.2, honeycomb 800 g/m² approximately RMB 0.9, and inflatable column bags (before inflation) approximately RMB 0.3 + RMB 0.1 for depreciation of inflation equipment, totaling RMB 0.4.

Storage volume: EPE 8 mm 1000 pieces = 1.5 m³; honeycomb 800 g/m² 1000 pieces = 2.5 m³; inflatable air-column bags before inflation 1000 pieces = 0.1 m³.

Drop Test Pass Rate (based on a 1.5 m drop, small household appliances): EPE 12 mm 100%, honeycomb 1200 g/m² 100%, air-column bag 100% (provided it does not leak).

Return losses: If EPE 8 mm is selected, the pass rate is 83%, and all breakage, accounting for 17%, is borne by the customer. For a small appliance priced at 200 yuan, a 17% return rate means a loss of 34 yuan per unit. This is a hidden cost. If the printing plant does not remind the customer, the customer will blame the printing plant when the costs are calculated afterward.

Once these 4 cost items are laid out for the customer, it becomes clear that "cheaper" does not depend on material cost alone; return losses must also be considered. Air-column bags are the cheapest option but carry a risk of air leakage. EPE 12 mm is slightly more expensive but stable, while honeycomb paperboard is environmentally friendly but requires a large storage volume.

3 Types of Scripts Print Shops Use to Help Customers Calculate Costs

When a customer asks the printing plant for “a cheaper option,” do not directly say, “The cheaper option has problems too.” Instead, respond with data:

Script 1: “If you choose EPE 8 mm, you save 0.3 yuan per unit, but the 1.5 m drop-test pass rate is 83%. Based on 100,000 units, 17,000 units would be damaged, resulting in a loss of 3.4 million yuan. We recommend EPE 12 mm, which costs 0.5 yuan more, but achieves a 100% pass rate with zero losses.”

Script 2: “If you choose honeycomb board, you’ll save 0.3 yuan per unit, but the storage volume will increase by 67% (2.5 m³ vs 1.5 m³), resulting in X yuan in additional annual storage costs. If your warehouse space is limited, we recommend choosing EPE 12 mm.”

Script 3: “If you choose air-column bags, the material cost is the lowest (0.4 yuan / piece), but the customer must provide additional inflation equipment (200-500 yuan / unit), and there is a 3-5% risk of air leakage. We recommend that your company first conduct a small trial run of 1000 pieces to evaluate the inflation process and leakage rate, and then decide whether to adopt them in large quantities.”

9 Key Takeaways: Should the Printing Factory Conduct Drop Testing In-House?

The real problem facing printing plants: calculating costs for customers requires data, but where does that data come from?

The answer falls into two categories:

Use of third-party laboratory data: CTI, SGS, BV, and other laboratories have published some test data (anonymized), which printing plants can cite directly. The 8 sets of data in this article are cited from CTI's publicly available 2025 report.

Purchase your own drop-testing machine: Domestic models cost 50,000-100,000, while imported models cost 300,000-500,000. Small printing companies are not advised to purchase one, but medium-sized printing companies (annual output value of 5,000,000-20,000,000, with branded customers) can purchase one for internal pre-inspection, while formal reports should still be submitted to a third party.

Another hidden issue: drop-test data are “environment-dependent.” The same package may pass testing at 23℃/50% RH but fail testing at 35℃/85% RH. When preparing the quotation, the printer should tell the customer: “These results are based on the standard test environment of 23℃/50% RH. If your products are exported to Southeast Asia’s high-temperature, high-humidity environment, we recommend adding a set of tests at 35℃/85% RH for an additional fee of +2000 yuan.”

Further Reading

Selection of 4 Types of Packaging Cushioning Materials

Three Practical Implementation Boundaries of Mycelium Cushioning Packaging

Packaging Box Transportation Testing: 4 Types of Real-World Data

What to Do When Packaging Boxes Have an Excessive Damage Rate During Transportation? Specific Improvements Across 3 Stages and 8 Key Points