What is the difference between tpu foaming and foam?

The difference between PU foam and foam mainly lies in the material and performance.

According to the inquiry, TPU foaming is a way to make the gas in TPU react chemically by adding substances, so that a large number of bubbles are formed on the surface of TPU, and the shape is fixed under the action of heating and pressure. TPU foam has the characteristics of light weight, softness, sound insulation and earthquake resistance. Foam refers to a polymer material composed of many interconnected pores, which usually includes polyurethane foam, polystyrene foam, polyurethane foam and polyethylene foam. Foam has good shock absorption, heat insulation, cushioning, insulation and light and soft appearance.