Introduction to Rubber Release Agent Knowledge

It is understood that rubber release agents are generally divided into two types: external use and internal use. Traditional mold release agents are generally applied externally, that is, coated on the surface of the mold cavity. They are also commonly referred to as isolation agents. The products mainly include talc powder, mica powder, soap, paraffin, polytetrafluoroethylene, and silicone oil, which have a certain demolding effect, but they have disadvantages such as leaving mold scale and marks, corroding the mold, and being expensive. Among the numerous types of release agents, fluorine and silicon release agents have developed rapidly in recent years due to their good demolding effect and suitability for demolding mold materials.

The main requirements for release agents are: they have certain thermal stability and chemical inertness, and do not corrode the surface of the mold cavity; Residual decomposition products under the surface of the mold cavity; Does not affect the color of the product, but can give it a good appearance and is non-toxic; Easy to configure and convenient to use.

Rubber release agent refers to a type of substance used to prevent adhesion between rubber products and mold surfaces, and to ensure smooth demolding without tearing. Spray or apply it onto the surface of the mold cavity during use to form an effective isolation layer. The use of rubber release agent lies in this.

Rubber release agent is a functional substance between molds and products. In the rubber and plastic manufacturing industry, it is an essential additive used to release molds, improve production efficiency, extend the service life of molds, and make products smooth, size qualified, and reduce waste when manufacturing model products. Its main function is to make demolding operation easy and prevent damage to the product caused by forced removal. The isolation of release agents depends on their surface properties, which are characterized by low critical surface tension and difficulty in being wetted by liquids. This is why the release effect can be achieved.