How thick should protective foam be?
EPE and EVA foam come as sheets, rolls, bags and die-cut inserts. Thickness follows part weight and how far it travels. Below are the thicknesses factories use most; others can be made to order.
Commonly used thicknesses
| Thickness | Best for | Notes |
|---|---|---|
| 1–2 mm | Surface wrap against scratches | Scratch protection only, not impact |
| 3–5 mm | Wrap plus light impact protection | Common for electronics and small parts |
| 10 mm | Partitions, box bottoms, layer pads | The most common general-purpose thickness |
| 20–25 mm | Die-cut cavities that hold the part | Shaped to the part so it cannot shift |
| 30–50 mm | Heavy parts, corner protectors, export | Highest impact absorption of the range |
- What is the difference between EPE and EVA?
- EPE is softer and springs back, suited to wrapping and general cushioning. EVA is denser and firmer, suited to die-cut inserts that must hold their shape.
- Do you have anti-static grades?
- Yes, for electronics and ESD-sensitive parts. Say so when you ask for a quote.
- Can you make bags or die-cut shapes?
- Yes — bags, sheets, rolls and die-cut to your drawing. Send a photo or drawing.
- Not sure which thickness you need?
- Tell us the part weight, size and how it ships. We will recommend thickness and density, and make a sample to test against the real part.