The application of the Mold release agent provides a critical barrier between the molding surface and the substrate, thereby promoting the separation of the cured part from the mold. If there is no such barrier, the substrate will be fused to the surface of the mold, which makes cleaning difficult and the production efficiency sharply reduced. Even with the use of mold release agents, factors such as irregular application or improper selection of mold release agents can have a huge impact on the quality and consistency of the final product. Therefore, it is essential that engineers understand the types of mold release agents available and which modifiers will complement their production methods. There are several different release agent categories: sacrificial, PVA (polyvinyl alcohol), PTFE (polytetrafluoroethylene) and reactive polysiloxane. The key criteria to be met by each release agent are as follows:
Surface adhesion and durability Ability to form a thin film Surface slip Chemically inert to the forming process and forming substrate Number of releases per application
The type of release agent and the individual products in these types vary greatly in terms of slip, application method, production efficiency and cost. Therefore, once an optimized agent is found, manufacturers who invest time in researching and testing release agents will see a return on investment. Sacrificial agents (usually waxes and silicone oils) and PVA release agents are the lowest cost materials with sufficient slip and chemical inertness. Unfortunately, these adhesives must be reapplied after each molding cycle and will be transferred to the molded parts. This results in time-consuming cleaning of the molded parts. Interestingly, although the initial cost of the sacrificial agent and PVA release agent may be lower, the overall cost is much higher because one can expect more release agent to be released per application, while using PTFE and reactive There is little or no post-cleaning of polysiloxane.
Alkyl alkyl polysiloxane is the core raw material of die casting water-based mold release agent. It provides excellent heat resistance for the mold release agent formulation, and can maintain the function of the formulation during the die casting process. Hangzhou Situ New Material Technology Co., Ltd. is a professional China manufacturer and supplier of Mold release agent . Welcome to consult and purchase: https://www.silways.com/application/mold-release-agent.html
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