{"id":560,"date":"2024-10-02T15:49:17","date_gmt":"2024-10-02T15:49:17","guid":{"rendered":"https:\/\/www.fmcallahan.com\/blog\/?p=560"},"modified":"2024-11-04T14:12:58","modified_gmt":"2024-11-04T14:12:58","slug":"the-critical-importance-of-strikes","status":"publish","type":"post","link":"https:\/\/www.fmcallahan.com\/blog\/the-critical-importance-of-strikes\/","title":{"rendered":"The Critical Importance of Strikes"},"content":{"rendered":"<p>In an ideal plating or finishing application, a finish would completely adhere when applied to a part (a substrate). However, the ideal is rarely experienced. Some substrates simply resist the application of a finish because they have oxide films, are highly active, are porous, are littered with defects, or lack conductivity. In order to resolve these issues, an intermediary layer is applied to the substrate. Such a layer is called a &#8220;strike&#8221;.\u00a0 The desired finish is then uniformly applied to the strike layer.<\/p>\n<p>A strike layer is like a finished layer except that it is restrained. The strike is given just enough time to prepare the substrate for a finished layer before the substrate is removed from the bath. There is not enough time for the strike layer to begin to plate the part.<\/p>\n<p>Common strikes in finishing include:<\/p>\n<table width=\"100%\">\n<tbody>\n<tr>\n<td><strong>Substrate<\/strong><\/td>\n<td><strong>Strike<\/strong><\/td>\n<td><strong>Finish<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Inconel \/ Stainless Steel<\/td>\n<td>Nickel \/ Silver<\/td>\n<td>Silver<\/td>\n<\/tr>\n<tr>\n<td>Steel<\/td>\n<td>Nickel \/ Copper \/ Silver<\/td>\n<td>Silver<\/td>\n<\/tr>\n<tr>\n<td>Copper \/ Brass<\/td>\n<td>Copper \/ Silver<\/td>\n<td>Silver<\/td>\n<\/tr>\n<tr>\n<td>Aluminum<\/td>\n<td>Copper \/ Silver<\/td>\n<td>Silver<\/td>\n<\/tr>\n<tr>\n<td>Inconel<\/td>\n<td>Nickel Strike<\/td>\n<td>Nickel Sulfamate<\/td>\n<\/tr>\n<tr>\n<td>Steel\/Stainless Steel<\/td>\n<td>Nickel Strike<\/td>\n<td>Electroless Nickel<\/td>\n<\/tr>\n<tr>\n<td>Aluminum<\/td>\n<td>Zincate<\/td>\n<td>Electroless Nickel<\/td>\n<\/tr>\n<tr>\n<td>Copper \/ Brass<\/td>\n<td>Nickel Strike<\/td>\n<td>Nickel Sulfamate<\/td>\n<\/tr>\n<tr>\n<td>Copper \/ Brass<\/td>\n<td>Electroless Nickel<\/td>\n<td>Gold<\/td>\n<\/tr>\n<tr>\n<td>Copper<\/td>\n<td>Nickel Sulfamate<\/td>\n<td>Gold<\/td>\n<\/tr>\n<tr>\n<td>Aluminum<\/td>\n<td>Zincate \/ Electroless Nickel<\/td>\n<td>Gold<\/td>\n<\/tr>\n<tr>\n<td>Aluminum<\/td>\n<td>Zincate \/ Copper Strike \/Electroless Nickel<\/td>\n<td>Tin<\/td>\n<\/tr>\n<tr>\n<td>Copper \/ Brass<\/td>\n<td>Copper Strike<\/td>\n<td>Tin<\/td>\n<\/tr>\n<tr>\n<td>Stainless Steel<\/td>\n<td>Nickel Strike \/ Copper Strike<\/td>\n<td>Tin<\/td>\n<\/tr>\n<tr>\n<td>Copper<\/td>\n<td>Nickel Sulfamate<\/td>\n<td>Tin<\/td>\n<\/tr>\n<tr>\n<td>Steel \/ Stainless Steel<\/td>\n<td>Nickel Strike \/ Copper Strike<\/td>\n<td>Tin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In an ideal plating or finishing application, a finish would completely adhere when applied to a part (a substrate). However, the ideal is rarely experienced. Some substrates simply resist the application of a finish because they have oxide films, are highly active, are porous, are littered with defects, or lack conductivity. In order to resolve these issues, an intermediary layer is applied to the substrate. Such a layer is called a &#8220;strike&#8221;.\u00a0 The desired finish is then uniformly applied to the strike layer. A strike layer is like a finished layer except that it is restrained. The strike is given just enough time to prepare the substrate for a finished layer before the substrate is removed from the bath. There is not enough time for the strike layer to begin to plate the part. Common strikes in finishing include: Substrate Strike Finish Inconel \/ Stainless Steel Nickel \/ Silver Silver Steel Nickel \/ Copper \/ Silver Silver Copper \/ Brass Copper \/ Silver Silver Aluminum Copper \/ Silver Silver Inconel Nickel Strike Nickel Sulfamate Steel\/Stainless Steel Nickel Strike Electroless Nickel Aluminum Zincate Electroless Nickel Copper \/ Brass Nickel Strike Nickel Sulfamate Copper \/ Brass Electroless Nickel Gold Copper Nickel Sulfamate Gold Aluminum Zincate \/ Electroless Nickel Gold Aluminum Zincate \/ Copper Strike \/Electroless Nickel Tin Copper \/ Brass Copper Strike Tin Stainless Steel Nickel Strike \/ Copper Strike Tin Copper Nickel Sulfamate Tin Steel \/ Stainless Steel Nickel Strike \/ Copper Strike Tin &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-560","post","type-post","status-publish","format-standard","hentry","category-general"],"_links":{"self":[{"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/posts\/560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/comments?post=560"}],"version-history":[{"count":13,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/posts\/560\/revisions"}],"predecessor-version":[{"id":687,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/posts\/560\/revisions\/687"}],"wp:attachment":[{"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/media?parent=560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/categories?post=560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fmcallahan.com\/blog\/wp-json\/wp\/v2\/tags?post=560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}