Foam is the foam of plastic particles, referred to as foam. Foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, CR, EVA, bridge PE, SBR, EPDM and so on. Foam has a series of characteristics such as flexibility, light weight, rapid pressure sensitive fixation, easy to use, flexible, thin volume, reliable performance and so on.

Sponge, a porous material, has good water absorption and can be used to clean objects. Common sponges are made from wood cellulose fibers or foamed plastic polymers. In addition, there are natural sponges made from sponges. Most natural sponges are used for body cleaning or painting. There are three other types of synthetic sponges: low-density polyethers (non-absorbent sponges), polyvinyl alcohol (highly absorbent materials with no obvious pores) and polyester.