Classification of mold release agents
1, Classification according to usage:
internal mold release agent, external mold release agent.
2, Classification by life:
conventional mold release agent, semi-permanent mold release agent.
3, Classification by form:
solvent-based release agent, water-based release agent, solvent-free release agent, powder release agent, paste release agent
4, Classification by active substance:
① silicon series – mainly silicone compounds, silicone oil, silicone resin methyl branched silicone oil, methyl silicone oil, emulsified methyl silicone oil, hydrogen-containing methyl silicone oil, silicone grease, silicone resin, silicone rubber, silicone rubber toluene solution
②Wax series – plant, animal, synthetic paraffin wax; microcrystalline paraffin wax; polyethylene wax, etc.
③Fluorine series – the best isolation performance, small pollution to the mold, but high cost PTFE; fluorine resin powder; fluorine resin coating, etc.
④Surfactant series – metal soap (anionic), EO, PO derivatives (non-ionic)
⑤ Inorganic powder series – talc, mica, clay, white clay, etc.
⑥Polyether series – polyether and grease mixture, heat resistant is chemically good, mostly used in certain rubber industries that have restrictions on silicone oil. The cost is higher than the silicone oil series.
Containing masking agent containing water release agent: with masking agent fixed water molecules durable type release agent: silicone oil + silicone resin system, more than 800 times multi-layer composite release agent: halogenated hydrocarbon film + polyethylene release agent + polyvinyl alcohol release agent aromatic polysulfone release agent mold treatment of the release agent containing halogenated polyether release agent: reduce the vapor pressure, increase the decomposition temperature, will not cause charged contact carbonyl silane release agent: internal release, the Improve the adhesion to the surface of water-based ink reactive mold release agent: after coating itself to chemically react to form a film, while adhering to the surface of the mold The above are some representative mold release agents, which have their own characteristics and can be used separately according to their applications. For example, they are used as backing agents for fiber adhesion tapes, etc., peel-off paper, anti-adhesive agents (utility poles, telephone boxes, signboards, signs), and for anti-pollution (interior and exterior wall coating, vehicles, barricades, road barriers, etc.) to prevent residual adhesion around adhesives.
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