Blend the foaming resin, foaming AIDS and adhesive resin (make the finished product adhesive); B. Conduct foaming process. The foam sponge was prepared by mixing 80 copies of vinyl ethylene acetate (EVA), 20 copies of APAO PT 3385, 20 copies of azodicarbonamide, L9 copies of CaCO and 0.6 copies of diisopropylbenzene peroxide in a mould and breaking the closed hole with mechanical force. Its density (d) is 0.028 g/cm and compression hardness of 25% is 1.9 KPa.

Sponges consist mostly of polyurethane, which is the same material as foam. Different manufacturing processes will produce different things.

PU sponge mainly includes polyester and polyether type sliced or rolled, can also be processed according to customer requirements, hot pressing and blasting hole processing. PU sponge has the characteristics of heat preservation, heat insulation, sound absorption, shock absorption, flame retardant, antistatic and good air permeability, so it involves various industries, including automobile industry, battery industry, cosmetics industry, bra underwear manufacturing industry and high-end furniture manufacturing industry.