| What else will impregnation do?
In addition to sealing for pressure tightness, impregnation is used to seal sintered components and other parts to avoid corrosion and fungi growth. It is also used prior to electro-plating to prevent bleedout from acid etches and electrolytes absorbed into porous areas which are sealed in by subsequent plating. Where bleedout and blistering due to porosity is a problem on other types of finishes, such as lacquers and baked enamels, impregnation before finishing eliminates such gassing and blistering.
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