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Henkel’s complete Loctite Impregnation Solutions (LIS) product portfolio not only offers impregnation resins and systems but also a customised service through both external, as well as tailored, on-site impregnation service centres. Through LIS, Henkel, a leading supplier of porosity sealing products and services, offers the automotive industry a one-of-a-kind, fully automated impregnation system and its high-tech resins deliver consistent quality and unmatched sealing performance.
When casting aluminium automotive components, those castings may suffer from porosity defects that can lead to problems in parts, such as engine blocks, cylinder heads, and compressors. Porosities are small holes or cracks that can be permeated by fluids or gases. They appear in castings as they change from a liquid to a solid state. If not properly treated, they can lead to corrosion, pressure loss, fluid loss or costly failures in the field.
Similarly, troubling microscopic leak paths may occur in electronic assemblies when joining dissimilar materials. Aggressive substances can penetrate into the components, potentially causing short circuits, corrosion and loss of power or other issues.
Such castings and electrical components need to be sealed to ensure they do not leak and that they provide appropriate resistance to chemicals, aggressive fluids and high operating temperatures in the field.