脱模剂是一种介于模具和成品之间的功能性物质。脱模剂有耐化学性，在与不同树脂的化学成份(特别是苯乙烯和胺类)接触时不被溶解。脱模剂还具有耐热及应力性能，不易分解或磨损;脱模剂粘合到模具上而不转移到被加工的制件上，不妨碍喷漆或其他二次加工操作。由于注塑、挤出、压延、模压、层压等工艺的迅速发展，脱模剂的用量也大幅度地提高。
Demoulding agent is a functional material between the mold and the finished product. The demoulding agent has chemical resistance and is not dissolved in contact with the chemical components of different resins, especially styrene and amines. The release agent is also heat-resistant and stress resistant, and it is not easy to decompose or wear. The release agent is glued to the mold instead of transferred to the processed part, which does not prevent painting or other two processing operations. Because of the rapid development of injection, extrusion, calendering, molding and laminating, the dosage of demoulding agent has been greatly improved.
理论上，脱模剂具有较大的抗拉强度，以使它在与模压树脂经常接触时不容易磨光。在树脂中有磨砂矿物填料或玻璃纤维增强料时尤其如此。脱模剂有耐化学性，在与不同树脂的化学成份(特别是苯乙烯和胺类)接触时不被溶解。脱模剂还具有耐热及应力性能，不易分解或磨损;脱模剂粘合到模具上而不转移到被加工的制件上，不妨碍喷漆或其他二次加工操作。
In theory, the demoulding agent has a larger tensile strength so that it is not easy to polish when it is in constant contact with the molding resin. This is especially true when there are grit mineral fillers or glass fiber reinforced materials in the resin. The demoulding agent has chemical resistance and is not dissolved in contact with the chemical components of different resins, especially styrene and amines. The release agent is also heat-resistant and stress resistant, and it is not easy to decompose or wear. The release agent is glued to the mold instead of transferred to the processed part, which does not prevent painting or other two processing operations.
脱模剂的作用就是将固化成型的制品顺利地从模具上分离开来，从而得到光滑平整的制品，并保证模具多次使用
The function of the demoulding agent is to separate the solidified products from the mold to get smooth and smooth products and ensure that the mold is used many times.