Vertical compressive strength (ASTM standard)

Resistance to applied force.

Unit of measure: pound / square inch (PSI)

25% and 50% compression foam thickness, and then measure the relative strength.

The advantage of the data in the calculation of the compression area of the packaging design:

- Strong elastic foam

- Less foam needed (to reduce the cost of packaging materials)

- Packing small size (reduce the cost of packing box, increase the capacity of the container and container)