Aluminum oxide die-casting is primarily used in applications demanding high performance for subsequent processes like anodizing and painting. Traditional silicone-containing release agents have two key drawbacks: they impair the adhesion of subsequent coatings to the casting, and they tend to cause gray discoloration on the casting surface. Therefore, silicone-free release agents are recommended in most cases—they not only reduce release agent residue on the mold but also help maintain casting surface cleanliness, facilitating easier subsequent cleaning and painting.
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