What is the raw material of foam?

The raw materials of foam are polystyrene, talcum powder, calcium stearate, butane, etc. Because of its light weight, firmness, shock absorption, low moisture absorption, easy molding, good water resistance, thermal insulation, low price and other characteristics, it is widely used in packaging, thermal insulation, waterproof, thermal insulation, shock absorption and other fields, and is one of the widely used plastics in the world today.