{"id":4311,"date":"2026-07-02T12:20:30","date_gmt":"2026-07-02T10:20:30","guid":{"rendered":"https:\/\/deltar.it\/nichelatura-alluminio\/"},"modified":"2026-09-08T11:29:21","modified_gmt":"2026-09-08T09:29:21","slug":"electroless-nickel-plating-aluminium","status":"publish","type":"page","link":"https:\/\/deltar.it\/en\/electroless-nickel-plating-aluminium\/","title":{"rendered":"Electroless nickel plating on aluminium"},"content":{"rendered":"
[vc_row full_width=”stretch_row_content” content_placement=”bottom” full_height=”yes” columns_placement=”bottom” equal_height=”yes” wpex_bg_color=”accent-alt” el_class=”dt-container dt-inner-banner” css=”.vc_custom_1784700390497{background-image: url(https:\/\/deltar.it\/wp-content\/uploads\/2026\/07\/Nichelatura-Banner.webp?id=949) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}”][vc_column][vc_row_inner content_placement=”bottom” el_class=”pbd100″][vc_column_inner el_class=”fade-up”][vc_column_text css=”” el_class=”dt-label dt-big-label” color=”on-accent” letter_spacing=”10%” font_weight=”700″ text_transform=”uppercase”]Electroless nickel plating on aluminium[\/vc_column_text][vc_column_text css=”” el_class=”mtd30 mbd20 mtm20 mbm20 dt-remove-br-md” color=”on-accent”]\n

Uniformity, resistance
\nand precision on
\naluminium components<\/h1>\n[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-container-w”][vc_column][vc_row_inner content_placement=”top” el_class=”ptd100 pbd100 ptm60 pbm60 dt-about dt-nichelatura-about dt-m-reverse”][vc_column_inner el_class=”fade-up mtm30″ width=”1\/2″]
\"Componente<\/div><\/figure>[\/vc_column_inner][vc_column_inner el_class=”fade-up” width=”1\/2″][vc_column_text css=”” color=”#222222″ text_transform=”none” el_class=”dt-h2 dt-remove-br-md ptd20″]\n

Electroless nickel plating
\non aluminium<\/h2>\n[\/vc_column_text][vc_column_text css=”” color=”#353639″ font_size=”d:17px|tp:16px” el_class=”ptd20 ptm15 dt-remove-br-md”]Electroless nickel plating on aluminium (Electroless Nickel Plating)<\/strong> is one of the most effective solutions for improving the surface performance of this material.<\/p>\n

The process makes it possible to obtain perfect adhesion, thickness uniformity, corrosion resistance and high hardness<\/strong>, even on complex geometries, cavities and surfaces that are difficult to reach<\/strong>.<\/p>\n

Thanks to the absence of electric current<\/strong>, the nickel deposit takes place homogeneously, making electroless nickel plating particularly suitable.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-container-w” wpex_bg_overlay=”color” wpex_bg_overlay_color=”palette-290″ wpex_bg_overlay_opacity=”80%” css=”.vc_custom_1783579706791{background-image: url(https:\/\/deltar.it\/wp-content\/uploads\/2026\/07\/banner.webp?id=1096) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}”][vc_column][vc_row_inner el_class=”ptd100 pbd100 ptm60 pbm60″][vc_column_inner el_class=”fade-up mbm30″ width=”1\/3″][vc_column_text css=”” color=”palette-295″ font_size=”clamp(22px, 2vw, 32px);” font_family=”Barlow” font_weight=”700″ el_class=”mbd10 mbm10 dt-title-min-h” line_height=”1.15″]Why nickel-plate aluminium?[\/vc_column_text][vc_column_text css=”” color=”palette-295″ font_size=”16px”]Aluminium is widely used in precision engineering for its lightness and for the good mechanical properties of many of its alloys, but it has clear limits at the surface level:<\/p>\n

    \n
  • low wear resistance<\/li>\n
  • tendency to seizing in sliding contacts<\/li>\n
  • sensitivity to corrosion, in particular in the presence of conditions that trigger galvanic corrosion<\/li>\n<\/ul>\n

    Electroless nickel plating makes it possible to overcome these limits, transforming aluminium into a material suitable for aggressive environments, mechanical contacts and stringent dimensional requirements.[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up mbm30″ width=”1\/3″][vc_column_text css=”” color=”palette-295″ font_size=”clamp(22px, 2vw, 32px);” font_family=”Barlow” font_weight=”700″ el_class=”mbd10 mbm10 dt-title-min-h” line_height=”1.15″]The critical point: coating adhesion[\/vc_column_text][vc_column_text css=”” color=”palette-295″ font_size=”16px”]Nickel plating of aluminium requires dedicated preparation.<\/p>\n

    It is essential to provide a surface activation treatment that creates a thin intermediate layer to activate the receiving surface.<\/p>\n

    The quality and uniformity of this step are decisive in guaranteeing the adhesion and protective effectiveness of the coating.[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up” width=”1\/3″][vc_column_text css=”” color=”palette-295″ font_size=”clamp(22px, 2vw, 32px);” font_family=”Barlow” font_weight=”700″ el_class=”mbd10 mbm10 dt-title-min-h” line_height=”1.15″]Our plus: an optimised and controlled process[\/vc_column_text][vc_column_text css=”” color=”palette-295″ font_size=”16px”]Thanks to constant Research and Development activity, at Deltar we have developed a repeatable and controlled preparation cycle for electroless nickel plating on aluminium.<\/p>\n

    The aim is to guarantee high coating adhesion, thickness uniformity and an excellent aesthetic result while preserving critical geometries, finishes and tolerances.<\/p>\n

    The process has been optimised by eliminating sandblasting, to avoid surface alterations.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content”][vc_column][vc_row_inner equal_height=”yes” el_class=”dt-x-full-w”][vc_column_inner el_class=”ptd75 pbd75 ptm60 pbm60″ width=”1\/2″][vc_column_text css=”” el_class=”mbd25 mbm25 fade-up” color=”#171717″]\n

    How we increase the corrosion resistance of aluminium<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”#353639″ el_class=”fade-up” font_weight=”600″]Electroless nickel protects aluminium because it is a more \u201cnoble\u201d metal, but it is essential to correctly manage the phenomenon of galvanic corrosion.
    \nIn the presence of a corrosive trigger, a potential difference can accelerate the attack of the base metal and cause corrosion to progress along the interface.
    \nFor this reason, correct surface preparation, the choice of an adequate thickness and the absence of porosity in the deposit are decisive.
    \nWith specific and optimised cycles, electroless nickel plating on aluminium ensures excellent results verified with specific tests including the salt spray test (ISO 9227), and increasing performance as thickness increases.[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”ptd75 pbd75 ptm60 pbm60″ width=”1\/2″][vc_column_text css=”” color=”palette-295″ el_class=”mbd45 mbm45 dt-remove-br-md fade-up”]\n

    Wear resistance
    \nand hardness<\/h2>\n[\/vc_column_text][vc_column_text css=”” font_size=”16px” color=”palette-295″ el_class=”fade-up” font_weight=”600″]The performance related to wear depends on the type of nickel deposited: the typical hardness of electroless nickel is in the order of 500 \u00b1 50 HV.<\/p>\n

    When required, post-deposition heat treatments can be evaluated to further increase the hardness, considering case by case the aluminium alloy and compatibility with treatment temperatures.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row full_width=”stretch_row_content” el_class=”dt-sm-container-w” wpex_bg_color=”#6e6e6e”][vc_column][vc_row_inner el_class=”ptd95 pbd40 ptm60 pbm40″][vc_column_inner el_class=”mbm30 fade-up” width=”1\/2″][vc_column_text css=”” el_class=”dt-remove-br-md” color=”palette-295″]\n

    Electroless nickel plating
    \non aluminium: where it is
    \nparticularly suitable<\/h2>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner el_class=”fade-up” width=”1\/2″][vc_column_text css=”” color=”palette-295″ font_size=”16px” font_weight=”600″ el_class=”mbd25 mbm25 dt-remove-br-md”]Electroless nickel plating on aluminium is an extremely effective treatment for:[\/vc_column_text]