How should the mold release agent applied?
Application methodology depends on the carrier of choice as well as on the nature of the release agent and the process and process environment. Application is a key aspect to be observed and may significantly influence the performance of the release agent. In most cases, release agents are applied using a spray gun (manual or robot application). In some applications programmable spray systems with multiple spray nozzles allowing for the application of one or more release agents are used. The nozzle size is regulated to ensure proper atomization (influenced by the expected throughput and release agent viscosity) and good film formation. Spray application can be air assisted (where air is used to further shear and atomize droplets) or airless (where the nozzle operating at high pressure shears the release agent stream to obtain the necessary atomization). Electrostatic spray guns can also be used to apply solid and liquid release agents. In some applications, release agents can also be applied by aerosols or even through manual or automated wiping.