{"id":10400,"date":"2026-07-03T00:00:19","date_gmt":"2026-07-03T00:00:19","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=10400"},"modified":"2026-07-03T12:05:59","modified_gmt":"2026-07-03T12:05:59","slug":"9013r-vs-8950br-vs-8980","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/pt\/9013r-vs-8950br-vs-8980\/","title":{"rendered":"FS-D9013R vs FS-D8950BR vs FS-D8980: Which Fluorocarbon Additive Fits UV Varnish or UV Primer?"},"content":{"rendered":"<p><strong>Resposta r\u00e1pida:<\/strong> buyers comparing <strong>FS-D9013R<\/strong>, <strong>FS-D8950BR<\/strong>, e <strong>FS-D8980<\/strong> usually get the cleanest shortlist when they separate three different first-screen jobs instead of treating every fluorocarbon additive as the same surface-control tool. <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesinfs-d9013r\/\">FS-D9013R<\/a> should move first when the real problem is <strong>persistent anti-cratering pressure<\/strong>, <strong>orange peel in solvent-based UV cure<\/strong>, or a <strong>silicone-restricted UV primer route<\/strong> where recoating still matters. <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesinfs-d8950br\/\">FS-D8950BR<\/a> becomes the stronger first route when the buyer wants <strong>varnish compatibility<\/strong>, <strong>anti-cratering<\/strong>, and a cleaner fit for <strong>large-area spraying or multi-color wet-spray workflows<\/strong>. <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesin-fs-d8980\/\">FS-D8980<\/a> belongs earlier when the system is more about <strong>good long-wave leveling<\/strong>, <strong>orange-peel prevention<\/strong>, e <strong>spray-flow stability<\/strong> than about the most aggressive crater-fix route.<\/p>\n<p>That is the commercially useful split. These three Longchang products all sit inside solvent-based UV surface-control work, but they do not solve the same buyer problem first.<\/p>\n<h2>Why this comparison deserves its own page<\/h2>\n<p>Longchang already has broader pages for <a href=\"https:\/\/longchangchemical.com\/pt\/fluorine-surfactants-surface-control\/\">fluorine surfactants for surface control<\/a>, <a href=\"https:\/\/longchangchemical.com\/pt\/uv-varnish-surface-control\/\">UV varnish surface control<\/a>, <a href=\"https:\/\/longchangchemical.com\/pt\/uv-coating-flow-leveling\/\">UV coating flow and leveling<\/a>, e <a href=\"https:\/\/longchangchemical.com\/pt\/coating-defect-additive-selection\/\">defect-driven additive selection<\/a>. But buyers still reach a narrower decision point after those pages: <strong>which fluorocarbon additive should be sampled first for this solvent-based UV varnish or primer job?<\/strong><\/p>\n<p>That is different from asking whether a fluorine route is needed at all. Once the team has already decided the problem sits inside the fluorocarbon lane, the next commercial question is whether the job is mainly about <strong>anti-cratering and silicone restriction<\/strong>, <strong>spray-application robustness with anti-cratering<\/strong>, or <strong>leveling and orange-peel control without the same crater priority<\/strong>.<\/p>\n<h2>What these three products have in common, and where they split<\/h2>\n<p>Longchang&#8217;s current product pages place all three products in <strong>solvent-based UV cure<\/strong> and describe them as <strong>fluorocarbon copolymer solutions<\/strong>. All three are tied to <strong>good long-wave leveling<\/strong> e <strong>orange-peel prevention<\/strong>. That shared positioning is exactly why buyers can waste time if they treat them as interchangeable.<\/p>\n<p>The split starts when the team checks the narrower supported details:<\/p>\n<ul>\n<li><strong>FS-D9013R<\/strong> adds explicit support for <strong>excellent anti-cratering<\/strong>, <strong>fast leveling speed<\/strong>, <strong>recoating<\/strong>, and use as an <strong>anti-shrinkage additive where silicone additives cannot be used<\/strong>, plus an important warning about <strong>UV vacuum electroplating primer<\/strong>.<\/li>\n<li><strong>FS-D8950BR<\/strong> adds explicit support for <strong>good compatibility in varnish<\/strong>, <strong>excellent anti-cratering<\/strong>, suitability for <strong>large-area spraying<\/strong>, and control of <strong>color channeling between colors after wet spraying and drying<\/strong>.<\/li>\n<li><strong>FS-D8980<\/strong> keeps the stronger emphasis on <strong>good compatibility in varnish<\/strong>, <strong>good long-wave leveling<\/strong>, <strong>orange-peel prevention<\/strong>, e <strong>multi-color spray-flow control<\/strong>, but without the same direct anti-cratering claim found on 9013R and 8950BR.<\/li>\n<\/ul>\n<p>That difference is enough to justify a real comparison page rather than forcing buyers back into a broad additive overview.<\/p>\n<h2>Quick comparison table: FS-D9013R vs FS-D8950BR vs FS-D8980<\/h2>\n<table>\n<thead>\n<tr>\n<th>Buying factor<\/th>\n<th>FS-D9013R<\/th>\n<th>FS-D8950BR<\/th>\n<th>FS-D8980<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Main supported system<\/td>\n<td>Cura UV \u00e0 base de solvente<\/td>\n<td>Cura UV \u00e0 base de solvente<\/td>\n<td>Cura UV \u00e0 base de solvente<\/td>\n<\/tr>\n<tr>\n<td>What pushes it forward first<\/td>\n<td>Persistent anti-cratering, fast leveling, silicone-free UV primer logic, recoating-sensitive work<\/td>\n<td>Varnish compatibility plus anti-cratering in large-area or multi-color spraying<\/td>\n<td>Long-wave leveling and orange-peel prevention when crater pressure is less dominant<\/td>\n<\/tr>\n<tr>\n<td>Direct anti-cratering support<\/td>\n<td>Yes, explicitly excellent anti-cratering<\/td>\n<td>Yes, explicitly excellent anti-cratering<\/td>\n<td>Not emphasized the same way on the current page<\/td>\n<\/tr>\n<tr>\n<td>Spray-process angle<\/td>\n<td>Useful in common UV primer work, but with a specific recoating limitation<\/td>\n<td>Suitable for large-area spraying and reducing color channeling between colors<\/td>\n<td>Suitable for large-area spraying and reducing color channeling between colors<\/td>\n<\/tr>\n<tr>\n<td>Suggested addition<\/td>\n<td>0.1-1.0%<\/td>\n<td>0.1-1.0%<\/td>\n<td>0.05-0.8%<\/td>\n<\/tr>\n<tr>\n<td>Important watchpoint<\/td>\n<td>Not applicable in UV vacuum electroplating primer because it will affect recoating<\/td>\n<td>No foam inhibition, so do not confuse it with a defoamer route<\/td>\n<td>No foam inhibition, and the page does not position it as the strongest crater-fix route<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>When FS-D9013R is the better fit<\/h2>\n<p>FS-D9013R should move to the front when the surface problem is still refusing to settle after more ordinary varnish-leveling adjustments, especially in <strong>common UV primer<\/strong> work where <strong>anti-cratering<\/strong> e <strong>recoating<\/strong> both matter. Longchang&#8217;s current product page supports <strong>good long-wave leveling<\/strong>, <strong>orange-peel prevention<\/strong>, <strong>excellent anti-cratering<\/strong>, <strong>fast leveling speed<\/strong>, e <strong>high temperature resistance<\/strong>. The same page also says it <strong>could recoating<\/strong> and is often used as an <strong>anti-shrinkage additive in systems where silicone additives cannot be used<\/strong>.<\/p>\n<p>That makes 9013R the strongest first route when:<\/p>\n<ul>\n<li>the project is inside a <strong>solvent-based UV primer or varnish<\/strong> window<\/li>\n<li>the panel still shows <strong>persistent crater pressure<\/strong> or anti-shrinkage problems<\/li>\n<li>the team needs a supported route for <strong>silicone-restricted<\/strong> systems<\/li>\n<li>recoating still matters in the supported application window<\/li>\n<\/ul>\n<p>The caution matters just as much as the strengths. Longchang explicitly says 9013R is useful in common UV primer anti-cratering work <strong>without affecting recoating<\/strong>, but also says it is <strong>not applicable in UV vacuum electroplating primer<\/strong> because it will affect recoating. That limitation is commercially important and should be screened early, not after scale-up.<\/p>\n<h2>When FS-D8950BR is the better fit<\/h2>\n<p>FS-D8950BR becomes more attractive when the buyer wants a fluorocarbon route that still keeps <strong>varnish compatibility<\/strong> visible while adding <strong>excellent anti-cratering<\/strong> and a stronger <strong>large-area spray<\/strong> story. Longchang&#8217;s current page supports <strong>good compatibility in varnish<\/strong>, <strong>good long-wave leveling<\/strong>, <strong>orange-peel prevention<\/strong>, e <strong>excellent anti-cratering<\/strong>. It also says the product is <strong>suitable for large-area spraying<\/strong> and can help prevent and eliminate <strong>color channeling between colors after wet spraying and drying<\/strong>.<\/p>\n<p>That pushes 8950BR ahead when:<\/p>\n<ul>\n<li>the project is closer to a <strong>spray-finish varnish<\/strong> or decorative UV coating job<\/li>\n<li>the buyer still needs <strong>anti-cratering<\/strong>, but does not need the same silicone-restricted primer logic as 9013R<\/li>\n<li>the production route includes <strong>large-area spraying<\/strong> ou <strong>multi-color wet-spray sequencing<\/strong><\/li>\n<li>the team wants a supported fluorocarbon route that is explicit about <strong>varnish compatibility<\/strong><\/li>\n<\/ul>\n<p>Longchang also says 8950BR has <strong>no foam inhibition<\/strong>. That is a useful reminder that buyers should not expect this route to solve an air-management problem that actually belongs in a <a href=\"https:\/\/longchangchemical.com\/pt\/defoamers-coatings-inks\/\">defoamer<\/a> screen.<\/p>\n<h2>When FS-D8980 is the better fit<\/h2>\n<p>FS-D8980 belongs earlier when the first question is more about <strong>clean leveling and spray-flow behavior<\/strong> than about the strongest crater-fix route. Longchang&#8217;s current page supports <strong>good compatibility in varnish<\/strong>, <strong>good long-wave leveling<\/strong>, <strong>orange-peel prevention<\/strong>, suitability for <strong>large-area spraying<\/strong>, and reducing <strong>color channeling between colors after wet spraying and drying<\/strong>. The page also gives a slightly lower suggested addition range of <strong>0.05-0.8%<\/strong>, which can be useful when buyers want a narrower first dose screen.<\/p>\n<p>That makes 8980 a cleaner first route when:<\/p>\n<ul>\n<li>the team mainly needs <strong>spray-flow uniformity<\/strong> e <strong>orange-peel prevention<\/strong><\/li>\n<li>good <strong>varnish compatibility<\/strong> still matters<\/li>\n<li>the panel is not clearly dominated by the same crater pressure that points harder toward 9013R or 8950BR<\/li>\n<li>the buyer wants to start with a lower-use fluorocarbon route before escalating<\/li>\n<\/ul>\n<p>In short, 8980 is usually the more defensible first screen when the problem still looks like a leveling-and-spray-behavior issue rather than a crater-heavy rescue job.<\/p>\n<h2>How buyers should choose before requesting samples<\/h2>\n<h3>1. Ask whether the real problem is crater-heavy or leveling-heavy<\/h3>\n<p>If the panel is still dominated by anti-cratering pressure, start by comparing 9013R and 8950BR more seriously. If the panel is mainly about flow, orange peel, and spray uniformity, 8980 deserves earlier attention.<\/p>\n<h3>2. Keep the process window visible<\/h3>\n<p>All three products sit in solvent-based UV cure, but the job type still matters. UV primer, decorative varnish, and large-area wet spray do not always deserve the same first sample.<\/p>\n<h3>3. Do not ignore recoating reality<\/h3>\n<p>9013R has a strong supported place in common UV primer work, but Longchang&#8217;s UV vacuum electroplating primer warning is real and should be treated as a hard screen.<\/p>\n<h3>4. Separate foam control from surface-control chemistry<\/h3>\n<p>8950BR and 8980 both note no foam inhibition. If the actual defect is trapped air or microbubble behavior, move that discussion back toward a defoamer route instead of asking a fluorocarbon additive to do the wrong job.<\/p>\n<h3>5. Start with the minimum practical dose window<\/h3>\n<p>Longchang&#8217;s supported addition ranges are useful for tightening the first lab round. Buyers usually learn faster from a controlled low-to-mid dose screen than from jumping straight to the top of the range.<\/p>\n<h2>Recommended Longchang path from this page<\/h2>\n<ul>\n<li><strong>Silicone-free UV primer and anti-cratering route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesinfs-d9013r\/\">FS-D9013R<\/a><\/li>\n<li><strong>Varnish-compatible anti-cratering and large-area spray route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesinfs-d8950br\/\">FS-D8950BR<\/a><\/li>\n<li><strong>Leveling and spray-flow route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/product\/agesin-fs-d8980\/\">FS-D8980<\/a><\/li>\n<li><strong>Related comparison page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/coating-defect-additive-selection\/\">Wetting Additive vs Leveling Additive vs Defoamer vs Fluorine Surfactant<\/a><\/li>\n<li><strong>Related function page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/fluorine-surfactants-surface-control\/\">How to Choose Fluorine Surfactants for Surface Control in Coatings and Inks<\/a><\/li>\n<li><strong>Related application page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/uv-varnish-surface-control\/\">Surface Control Additives for UV Varnishes and Overprint Systems<\/a><\/li>\n<li><strong>Related application page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/uv-coating-flow-leveling\/\">How to Improve Flow and Leveling in UV Coatings<\/a><\/li>\n<li><strong>Cluster overview:<\/strong> <a href=\"https:\/\/longchangchemical.com\/pt\/chlumicryl-coating-ink-additives\/\">CHLUMICRYL\u00ae Aditivos para tintas e revestimentos<\/a><\/li>\n<\/ul>\n<h2>PERGUNTAS FREQUENTES<\/h2>\n<h3>Which product is the best first screen for UV primer anti-cratering?<\/h3>\n<p>When the project is a supported common UV primer route and recoating matters, FS-D9013R is often the strongest first screen because Longchang explicitly positions it around anti-cratering, fast leveling, and silicone-restricted primer logic. But it should not be used for UV vacuum electroplating primer.<\/p>\n<h3>When should buyers start with FS-D8950BR instead of FS-D9013R?<\/h3>\n<p>Start with FS-D8950BR earlier when varnish compatibility, large-area spraying, and anti-cratering all matter, but the project does not specifically depend on 9013R&#8217;s silicone-free UV primer positioning.<\/p>\n<h3>When does FS-D8980 make more sense than the other two?<\/h3>\n<p>FS-D8980 makes more sense when the first problem is mostly leveling, orange-peel prevention, and spray-flow behavior, and the panel is not clearly calling for the strongest crater-control route.<\/p>\n<h3>Are these three products interchangeable?<\/h3>\n<p>No. They share a solvent-based UV fluorocarbon base and overlap in leveling language, but their current Longchang-supported roles are different enough that buyers should not treat them as plug-and-play substitutes.<\/p>\n<h2>Need a tighter first shortlist?<\/h2>\n<p>If your UV varnish or UV primer team is stuck between crater control, spray-flow stability, orange-peel prevention, and recoating limits, define the real bottleneck first: <strong>silicone-restricted anti-cratering<\/strong>, <strong>varnish-compatible anti-cratering in spraying<\/strong>, or <strong>leveling-led spray uniformity<\/strong>. That usually points to the right Longchang fluorocarbon route much faster than screening all three as if they solved the same problem.<\/p>","protected":false},"excerpt":{"rendered":"<p>A practical B2B comparison for buyers choosing between FS-D9013R, FS-D8950BR, and FS-D8980 for solvent-based UV varnish, large-area spray finishes, anti-cratering work, orange-peel control, and recoating-sensitive primer programs.<\/p>","protected":false},"author":6,"featured_media":10401,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10400","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>FS-D9013R vs FS-D8950BR vs FS-D8980 for UV Varnish and UV Primer<\/title>\n<meta name=\"description\" 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