{"id":10931,"date":"2026-07-29T00:00:46","date_gmt":"2026-07-29T00:00:46","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=10931"},"modified":"2026-07-29T12:09:18","modified_gmt":"2026-07-29T12:09:18","slug":"wetting-on-plastic-metal-substrates","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/zh\/wetting-on-plastic-metal-substrates\/","title":{"rendered":"How to Improve Wetting on Plastic and Metal Substrates"},"content":{"rendered":"<p><strong>\u5feb\u901f\u56de\u7b54\uff1a<\/strong> if your coating or ink still pulls back, craters, or hesitates on <strong>plastic or metal substrates<\/strong>, do not treat every failure as the same generic wetting problem. If you need a <strong>broad difficult-substrate wetting and spreading route<\/strong> across coating and ink systems, start with <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiwe-3071-organic-silicone-surfactant-organosilicone-wetting-agent\/\">CHLUMIWE\u00ae 3071<\/a>. If the system is <strong>\u6c34\u6027<\/strong> and the complaint includes wetting, spreading, and <strong>\u53cd\u706b\u5c71\u53e3<\/strong> on metal or plastic, move <a href=\"https:\/\/longchangchemical.com\/zh\/product\/agesin-wd-d547-wetting-agent\/\">CHLUMICRYL\u00ae WD-D547<\/a> earlier in the first screen. If the apparent wetting failure is actually tangled up with <strong>compatibility, fisheye, or crater stability<\/strong>, use <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag3467-silicone-leveling-agents\/\">CHLUMIAG\u00ae 3467<\/a> as the cleaner first route.<\/p>\n<p>This page is intentionally narrower than the already-live broad page on <a href=\"https:\/\/longchangchemical.com\/zh\/wetting-additives-coatings-inks\/\">wetting additives for coatings, inks, and difficult substrates<\/a>. It is also different from already-live application pages such as <a href=\"https:\/\/longchangchemical.com\/zh\/waterborne-plastic-coating-additives\/\">waterborne plastic coatings<\/a> \u548c <a href=\"https:\/\/longchangchemical.com\/zh\/waterborne-direct-to-metal-additives\/\">waterborne direct-to-metal coatings<\/a>. The buyer question here is more practical: <strong>when plastic or metal coverage fails, which additive lane should you screen first?<\/strong><\/p>\n<h2>Why plastic and metal wetting problems deserve a dedicated page<\/h2>\n<p>Plastic and metal substrates often get grouped together as hard-to-wet surfaces, but the underlying buyer decision is not always the same. Some failures are mostly about <strong>surface entry and spreading<\/strong>. Some are more specific to <strong>waterborne crater control<\/strong>. Others look like poor wetting at first glance, but the real blocker is <strong>compatibility-driven fisheye or crater instability<\/strong> inside the formulation.<\/p>\n<p>That is why a buyer-support page can help more than another broad additive overview. Instead of starting with too many partially overlapping additives, this page separates three first-screen routes that solve different versions of the same complaint.<\/p>\n<h2>What these three additive routes do differently<\/h2>\n<ul>\n<li><strong>CHLUMIWE\u00ae 3071<\/strong> is supported by Longchang as a <strong>polyether-modified polysiloxane<\/strong> route with a typical recommended dosage of <strong>0.1% \u81f3 1.0%<\/strong>. The supported page positions it for <strong>water-based, solvent-based, and UV systems<\/strong>, and specifically ties it to <strong>wetting and spreading<\/strong>. Longchang also notes that it may show a <strong>foam-stabilizing effect in water-based systems<\/strong>, which makes it a strong broad wetting route but not a page for pretending that every waterborne defect is only a substrate-entry problem.<\/li>\n<li><strong>CHLUMICRYL\u00ae WD-D547<\/strong> is supported by Longchang as a <strong>polyether-modified polydimethylsiloxane<\/strong> route for <strong>water-borne paint, solvent-based paint, solvent-free paint, and UV-curing paint<\/strong>, with a suggested addition level of <strong>0.1% \u81f3 0.5%<\/strong>. The supported buyer language includes <strong>wetting<\/strong>, <strong>spreading<\/strong>, <strong>\u53cd\u706b\u5c71\u53e3<\/strong>, <strong>re-coating<\/strong>, <strong>\u9664\u6ce1<\/strong>\uff0c \u548c <strong>leveling<\/strong>. For plastic or metal substrates, it becomes the cleaner first route when the complaint is specifically <strong>waterborne<\/strong> and the line still needs a more forceful combined wetting-plus-crater-control answer.<\/li>\n<li><strong>CHLUMIAG\u00ae 3467<\/strong> is supported by Longchang as a <strong>\u591a\u7ec4\u5206\u6539\u6027\u805a\u7845\u6c27\u70f7<\/strong> route that works in <strong>UV, solvent-based, and water-based systems<\/strong>. The product page explicitly says it <strong>\u4f18\u5148\u8003\u8651\u7cfb\u7edf\u517c\u5bb9\u6027<\/strong>. That makes it valuable when your wetting problem on plastic or metal is mixed with <strong>fisheye, crater breakup, or unstable laydown<\/strong> and the formulator needs a more compatibility-first correction path instead of only chasing lower surface tension.<\/li>\n<\/ul>\n<h2>\u5feb\u901f\u5bf9\u6bd4\u8868\uff1a\u54ea\u6761\u8def\u7ebf\u5e94\u8be5\u4f18\u5148\u663e\u793a\uff1f<\/h2>\n<table>\n<thead>\n<tr>\n<th>Observed problem on plastic or metal<\/th>\n<th>\u6700\u4f73\u9996\u9009\u8def\u7ebf<\/th>\n<th>\u4e3a\u4ec0\u4e48\u5b83\u5e94\u8be5\u6392\u5728\u7b2c\u4e00\u4f4d<\/th>\n<th>\u4e3b\u8981\u89c2\u5bdf\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>The film hesitates, pulls back, or does not spread cleanly on a difficult substrate across coating or ink systems<\/td>\n<td><a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiwe-3071-organic-silicone-surfactant-organosilicone-wetting-agent\/\">CHLUMIWE\u00ae 3071<\/a><\/td>\n<td>Supported for broad wetting and spreading across water-based, solvent-based, and UV systems<\/td>\n<td>Longchang notes possible foam stabilization in water-based systems, so do not force it to solve an air-release problem by itself<\/td>\n<\/tr>\n<tr>\n<td>The system is waterborne and the defect includes wetting failure plus crater pressure on plastic or metal<\/td>\n<td><a href=\"https:\/\/longchangchemical.com\/zh\/product\/agesin-wd-d547-wetting-agent\/\">CHLUMICRYL\u00ae WD-D547<\/a><\/td>\n<td>Supported for wetting, spreading, anti-cratering, recoating, defoaming, and leveling in water-borne paint systems<\/td>\n<td>Use it when the defect still starts at surface entry and crater control, not when the main problem is broader compatibility instability<\/td>\n<\/tr>\n<tr>\n<td>The complaint looks like poor wetting, but fisheye, crater breakup, or system instability is the more persistent pattern<\/td>\n<td><a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag3467-silicone-leveling-agents\/\">CHLUMIAG\u00ae 3467<\/a><\/td>\n<td>Compatibility-first route when the first problem is not only surface-tension reduction<\/td>\n<td>Do not treat it as a generic replacement for every pure wetting or spreading screen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>When 3071 is the better first fit<\/h2>\n<p>Move 3071 earlier when the buyer problem is still mostly about <strong>getting the film onto the substrate cleanly<\/strong>. In Longchang\u2019s supported product language, 3071 is the broad wetting-and-spreading route that can be used across water-based, solvent-based, and UV systems. That makes it commercially useful when the first lab question is still simple: <strong>can the coating or ink enter and cover this plastic or metal surface more effectively?<\/strong><\/p>\n<p>It is especially helpful when a buyer does not yet want to over-specialize into a single application page. Instead of splitting too early by resin family or end use, 3071 gives a cleaner first screen for broad difficult-substrate wetting.<\/p>\n<h2>When WD-D547 is the better first fit<\/h2>\n<p>Move WD-D547 ahead when the project is <strong>waterborne<\/strong> and the wetting complaint is mixed with <strong>crater pressure or unstable early-film behavior<\/strong>. Longchang\u2019s supported product page makes that distinction stronger than a generic wetting page because the listed supported functions include wetting, spreading, anti-cratering, recoating, defoaming, and leveling.<\/p>\n<p>That combination matters on both plastic and metal. Sometimes the panel or molded part does not merely resist initial coverage, it also pushes the waterborne film toward crater-like breakup. In that case, WD-D547 is often the cleaner first route than a broader general wetting additive.<\/p>\n<h2>When 3467 is the better first fit<\/h2>\n<p>Move 3467 ahead when your so-called wetting problem keeps showing up as <strong>fisheye, pullback, or unstable crater behavior<\/strong> even after a basic wetting route looks directionally reasonable. Longchang\u2019s supported product page explicitly says 3467 <strong>\u4f18\u5148\u8003\u8651\u7cfb\u7edf\u517c\u5bb9\u6027<\/strong>. That makes it useful when the coating or ink is not failing only because the substrate is hard to wet, but because the broader formulation balance still is not calm enough on the target surface.<\/p>\n<p>This is also the route that keeps the page different from a pure leveling article. The point is not to promise that 3467 solves everything. The point is to recognize when the buyer is really dealing with a <strong>compatibility-led surface-defect problem<\/strong> on plastic or metal, not just a raw wetting gap.<\/p>\n<h2>How buyers should choose<\/h2>\n<h3>1. Decide whether the failure is broad surface entry, waterborne crater control, or compatibility instability<\/h3>\n<p>If the coating or ink simply does not enter the substrate well, start with <strong>3071<\/strong>. If the system is waterborne and early wetting failure comes with crater pressure, start with <strong>WD-D547<\/strong>. If fisheye or crater behavior still dominates after first-contact wetting looks directionally better, move toward <strong>3467<\/strong>.<\/p>\n<h3>2. Keep waterborne and non-waterborne logic separate<\/h3>\n<p>This page intentionally keeps a separate lane for waterborne crater-sensitive work. That matters because Longchang\u2019s supported note for 3071 includes a possible foam-stabilizing effect in water-based systems, while WD-D547 is supported with a stronger water-borne wetting-and-anti-cratering profile.<\/p>\n<h3>3. Do not call every crater a wetting failure<\/h3>\n<p>On plastic and metal substrates, formulators often describe multiple visual defects with the same language. But not every crater, fisheye, or pullback pattern should be solved by pushing only a broader wetting route. If the system still behaves incompatibly, screen a compatibility-first path earlier.<\/p>\n<h3>4. Keep the first panel short and diagnostic<\/h3>\n<p>In most labs, one broad wetting route, one waterborne wetting-plus-crater-control route, and one compatibility-first route teach more than screening too many partially overlapping additives in the first round.<\/p>\n<h2>Where this page fits inside the CHLUMICRYL branch<\/h2>\n<ul>\n<li><strong>\u96c6\u7fa4\u6982\u89c8\uff1a<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/chlumicryl-coating-ink-additives\/\">CHLUMICRYL\u00ae \u6d82\u5c42\u548c\u6cb9\u58a8\u6dfb\u52a0\u5242<\/a><\/li>\n<li><strong>Broad wetting page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/wetting-additives-coatings-inks\/\">\u5982\u4f55\u4e3a\u6d82\u6599\u3001\u6cb9\u58a8\u548c\u96be\u5904\u7406\u57fa\u6750\u9009\u62e9\u6da6\u6e7f\u52a9\u5242<\/a><\/li>\n<li><strong>Plastic application page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/waterborne-plastic-coating-additives\/\">How to Choose Additives for Waterborne Plastic Coatings<\/a><\/li>\n<li><strong>Metal application page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/waterborne-direct-to-metal-additives\/\">How to Choose Additives for Waterborne Direct-to-Metal Coatings<\/a><\/li>\n<li><strong>\u76f8\u5173\u7f3a\u9677\u9875\u9762\uff1a<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/coating-fisheye-additive-selection\/\">How to Choose Additives for Coating Fisheyes<\/a><\/li>\n<li><strong>Broad difficult-substrate wetting route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiwe-3071-organic-silicone-surfactant-organosilicone-wetting-agent\/\">CHLUMIWE\u00ae 3071<\/a><\/li>\n<li><strong>Waterborne wetting and anti-cratering route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/agesin-wd-d547-wetting-agent\/\">CHLUMICRYL\u00ae WD-D547<\/a><\/li>\n<li><strong>\u517c\u5bb9\u6027\u4f18\u5148\u8def\u7ebf\uff1a<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag3467-silicone-leveling-agents\/\">CHLUMIAG\u00ae 3467<\/a><\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3>Is this page only for waterborne coatings?<\/h3>\n<p>No. The page is broader than that, because 3071 and 3467 are supported by Longchang across water-based, solvent-based, and UV systems. But it also keeps a dedicated waterborne route because WD-D547 has a stronger supported wetting-plus-anti-cratering fit for water-borne paint systems.<\/p>\n<h3>What should I test first if the film simply pulls back on plastic?<\/h3>\n<p>Usually 3071, unless the project is waterborne and the failure pattern already includes strong crater pressure that points more clearly toward WD-D547.<\/p>\n<h3>What should I test first if a waterborne coating still craters on metal?<\/h3>\n<p>Usually WD-D547 first, because Longchang supports it specifically for wetting, spreading, and anti-cratering in water-borne paint systems.<\/p>\n<h3>What if better wetting still leaves fisheyes?<\/h3>\n<p>That is the moment to move 3467 earlier, because the real problem may be compatibility-led surface instability rather than basic substrate entry alone.<\/p>\n<h3>Are these three additives interchangeable?<\/h3>\n<p>No. One is the broad difficult-substrate wetting route, one is the waterborne wetting-plus-crater-control route, and one is the compatibility-first route for mixed wetting and fisheye complaints.<\/p>\n<h2>Need a faster shortlist for plastic or metal wetting problems?<\/h2>\n<p>Start by deciding whether your first failure is <strong>surface entry<\/strong>, <strong>waterborne crater-sensitive wetting<\/strong>\uff0c \u6216\u8005 <strong>compatibility-led fisheye instability<\/strong>. That usually gives a faster and cleaner CHLUMICRYL\u00ae shortlist than treating every plastic or metal defect as the same wetting complaint.<\/p>","protected":false},"excerpt":{"rendered":"<p>A CHLUMICRYL\u00ae buyer guide for improving wetting on plastic and metal substrates by separating broad difficult-substrate wetting, waterborne anti-cratering wetting, and compatibility-led fisheye cleanup.<\/p>","protected":false},"author":6,"featured_media":10932,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10931","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Improve Wetting on Plastic and Metal Substrates<\/title>\n<meta name=\"description\" content=\"Improve coating 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