The steady rise in the volume of aluminum castings being produced, in particular automotive engine and powertrain parts, has spurred a significant expansion in the variety of products and systems for sealing those parts, to address inherent porosity.  While aluminum alloys offer automotive designers an option for producing lightweight parts in high volumes, aluminum castings often present porosity defects, small surface-level holes or cracks that can be permeated by fluids or gases. ...

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