{"id":9546,"date":"2026-02-05T06:20:56","date_gmt":"2026-02-05T06:20:56","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=9546"},"modified":"2026-04-27T11:18:15","modified_gmt":"2026-04-27T11:18:15","slug":"why-do-the-leveling-agents-you-choose-always-cause-problems","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/nl\/why-do-the-leveling-agents-you-choose-always-cause-problems\/","title":{"rendered":"Waarom veroorzaken de nivelleermiddelen die je kiest altijd problemen?"},"content":{"rendered":"<h1><strong>Waarom veroorzaken de nivelleermiddelen die je kiest altijd problemen?<\/strong><\/h1>\r\nNa jarenlang coatings te hebben geformuleerd, heb ik talloze herbewerkingen gezien die werden veroorzaakt door <strong><b>verkeerde selectie of onjuist gebruik van <\/b><\/strong><a href=\"https:\/\/changhongchemical.com\/\"><strong><b>Nivelleermiddelen<\/b><\/strong><\/a>\u2014scenarios like meeting gloss standards for the film layer yet facing wrinkling during recoating; solving cratering only to encounter pinholes; and the most frustrating issue: perfect lab results turning into production failures on a mass scale.\r\n\r\nThe truth is, the core of choosing a flow agent is not <strong><b>\"De duurste kiezen\"<\/b><\/strong>maar <strong><b>\"De juiste keuze voor jouw systeem\"<\/b><\/strong>. In dit artikel zal ik mijn decennialange praktijkervaring voor je uit de doeken doen: van een vergelijkende analyse van drie gangbare soorten vloeimiddel, tot een gedetailleerde controle van de toevoegniveaus en mengmethoden, tot de valkuilen waar ik persoonlijk in ben getrapt. Na het lezen zult u 80% aan vloeimiddel-gerelateerde coatingproblemen kunnen oplossen.\r\n<h2><strong><b>I. Drie hoofdstromen <\/b><\/strong><strong><b>Nivelleermiddelen<\/b><\/strong><strong><b>: Kenmerken, toepassingsscenario's en valkuilen<\/b><\/strong><\/h2>\r\n<h3><strong><b>1.1 Gemengde oplosmiddelen <\/b><\/strong><strong><b>Nivelleermiddelen<\/b><\/strong><strong><b>: Kosteneffectieve noodoplossingen - vermijd overdosering<\/b><\/strong><\/h3>\r\nThese were my go-to \u201cemergency solutions\u201d when I first entered the industry. Essentially a blend of high-boiling-point solvents\u2014formulated with aromatic hydrocarbons, ketones, and esters\u2014their core function is to adjust solvent evaporation rates.\r\n\r\nI recall a client complaining that nitrocellulose lacquers developed whitening and failed to achieve adequate gloss during construction in southern China\u2019s rainy season. On-site testing revealed the surface skin formed too quickly due to rapid solvent evaporation, trapping internal solvent. We added 5% of a mixed solvent-based flow agent (aromatic hydrocarbons + esters compounded) to the formulation, and the issue was resolved instantly.\r\n\r\n<strong><b>Belangrijkste kenmerken en gebruiksrichtlijnen<\/b><\/strong>\r\n<ul>\r\n \t<li><b><\/b><strong><b>Toepassingsscenario's<\/b><\/strong>: Lost alleen kratervorming, wit worden en onvoldoende glans op veroorzaakt door <strong><b>te snelle droging van oplosmiddelen<\/b><\/strong>of <strong><b>slechte oplosbaarheid van bindmiddel<\/b><\/strong>.<\/li>\r\n \t<li><b><\/b><strong><b>Belangrijkste controles<\/b><\/strong>:<\/li>\r\n<\/ul>\r\n<ul>\r\n \t<li>Verdampingssnelheid: Te laag leidt tot verminderde filmhardheid (ik zag ooit een 7% toevoeging resulteren in een zachte film na 3 dagen).<\/li>\r\n \t<li>Doseringsbereik: 2%-7% (gebaseerd op het totale verfvolume); overschrijding van 7% verlengt de droogtijd aanzienlijk.\r\n<ul>\r\n \t<li><b><\/b><strong><b>Unieke voordelen<\/b><\/strong>: Voor verticale coatings (bijv. nitrocelluloselak) verbetert het de vloei, versterkt het de glans en voorkomt het beslaan bij hoge temperatuur en vochtigheid.<\/li>\r\n \t<li><b><\/b><strong><b>Valkuilwaarschuwingen<\/b><\/strong>: Moet in synergie met andere egalisatiemiddelen worden gebruikt; afzonderlijk gebruik geeft beperkte resultaten en verhoogt het risico op uitzakken.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h3><strong><b>1.2 Acryl <\/b><\/strong><strong><b>Nivelleermiddelen<\/b><\/strong><strong><b>: Hoge veelzijdigheid &amp; uitstekende regenereerbaarheid<\/b><\/strong><\/h3>\r\nThese are the current \u201cworkhorses\u201d in the market, and their acrylic copolymer structure grants superior compatibility. In the industrial coating projects I oversee today, 80% use acrylic Leveling Agents.\r\n\r\nTheir core mechanism lies in functional groups in the molecular structure: \u2212COOH and \u2212OH adjust compatibility, alkyl esters provide surface activity, and molecular weight directly impacts spreading performance\u2014this explains why acrylic <a href=\"https:\/\/changhongchemical.com\/\">Nivelleermiddelen<\/a>\u00a0van verschillende modellen vertonen enorm verschillende stroomsnelheden.\r\n\r\n<strong><b>Belangrijkste kenmerken en gebruiksrichtlijnenUitstekende voordelen<\/b><\/strong>:\r\n<ul>\r\n \t<li>Uitstekende kritische compatibiliteit, geschikt voor de meeste coatingsystemen.<\/li>\r\n \t<li>Ingebouwd schuimremmend en ontschuimend vermogen, waardoor de kosten van extra ontschuimers worden beperkt.<\/li>\r\n \t<li>Superieure overschilderbaarheid: Modellen met kleine -OH\/-COOH groepen kunnen tot 5 keer opnieuw gecoat worden zonder rimpels (getest in het lab).<\/li>\r\n<\/ul>\r\n<strong><b>Belangrijke opmerkingen<\/b><\/strong>:\r\n<ul>\r\n \t<li>Moet via testen overeenkomen met de polariteit (ik heb ooit randkraters veroorzaakt in polyurethaan coatings door compatibiliteitscontroles over te slaan).<\/li>\r\n \t<li>De keuze van het molecuulgewicht is afgestemd op de viscositeit van de coating: modellen met een hoog molecuulgewicht voor coatings met een hoge viscositeit, modellen met een laag molecuulgewicht voor systemen met een lage viscositeit.<\/li>\r\n<\/ul>\r\n<h3><strong><b>1.3 Op siliconen gebaseerd <\/b><\/strong><strong><b>Nivelleermiddelen<\/b><\/strong><strong><b>: Dubbele stroming en ontschuimende effecten - modificatie is cruciaal<\/b><\/strong><\/h3>\r\nNivelleermiddelen op basis van siliconen hebben het grote voordeel dat ze een lage oppervlaktespanning hebben (polydimethylsiloxaan heeft een oppervlaktespanning van ~20 mN\/m), waardoor ze veel beter vloeien en schuimen dan andere types. Echter, <strong><b>compatibiliteit is hun achilleshiel<\/b><\/strong>.\r\n\r\nEarly in my career, I used unmodified polydimethylsiloxane directly, resulting in severe cratering in an entire batch of coatings and a loss of nearly 100,000 RMB. I later learned that unmodified siloxanes are incompatible with most coating systems and must undergo modification.\r\n\r\n<strong><b>Gewijzigde types en toepassingsscenario's<\/b><\/strong>\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong><b>Wijzigingsmethode<\/b><\/strong><\/td>\r\n<td><strong><b>Belangrijkste voordelen<\/b><\/strong><\/td>\r\n<td><strong><b>Coatingsystemen<\/b><\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Polyether Modificatie<\/td>\r\n<td>Beste compatibiliteit, sterk schuimoplossend vermogen<\/td>\r\n<td>Coatings op waterbasis, polyurethaancoatings<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Alkylmodificatie<\/td>\r\n<td>Verbeterde krasbestendigheid<\/td>\r\n<td>Industri\u00eble coatings op basis van oplosmiddelen<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>Fluormodificatie<\/td>\r\n<td>Superhydrofoob effect<\/td>\r\n<td>Speciale beschermende coatings<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<strong><b>Valkuilwaarschuwingen<\/b><\/strong>: Zelfs gemodificeerde producten vereisen compatibiliteitstesten voor gebruik (meng 5% verfmonster + 0,3% vloeimiddel; geen delaminatie na 24 uur = gekwalificeerd).\r\n<h2><strong><b>II. 4 Kritische punten voor het gebruik van stromingsagens: Van laboratorium tot massaproductie<\/b><\/strong><\/h2>\r\n<h3><strong><b>2.1 Selectielogica: Geef eerst prioriteit aan coatingtype en dan aan functionele behoeften<\/b><\/strong><\/h3>\r\nVeel gebruikers richten zich alleen op \"stroomprestaties\" bij het selecteren van <a href=\"https:\/\/changhongchemical.com\/\">Nivelleermiddelen<\/a>waarbij de inherente eigenschappen van de coating worden genegeerd. Mijn \u7ecf\u9a8c (ervaring) is:\r\n<ul>\r\n \t<li><b><\/b><strong><b>Coatings op basis van oplosmiddelen<\/b><\/strong>: Geef de voorkeur aan acryl (hoge veelzijdigheid) of gemodificeerde siliconen (voor hoge vloei-eisen).<\/li>\r\n \t<li><b><\/b><strong><b>Coatings op waterbasis<\/b><\/strong>: Polyether-gemodificeerde siliconen zijn de eerste keuze (uitstekende compatibiliteit, laag risico op schuimvorming).<\/li>\r\n \t<li><b><\/b><strong><b>Bij kamertemperatuur uithardende coatings (bijv. nitrocelluloselak)<\/b><\/strong>: Synergetisch gebruik van gemengde nivelleermiddelen op basis van oplosmiddelen + acryl.<\/li>\r\n \t<li><b><\/b><strong><b>Hoge temperatuur uithardende coatings<\/b><\/strong>: Geef de voorkeur aan acryl (goede hittebestendigheid, geen interferentie met uithardingsreacties).<\/li>\r\n<\/ul>\r\n<img decoding=\"async\" class=\"size-full wp-image-9550\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2.webp\" alt=\"Egaliseermiddel\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-2-600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/>\r\n<h3><strong><b>2.2 Doseringscontrole: Minder is meer-geleidelijk testen<\/b><\/strong><\/h3>\r\nDosering is de meest foutgevoelige stap: te weinig geeft geen effect; te veel leidt tot kratervorming, uitzakken, slechte overschilderbaarheid en een heleboel andere problemen.\r\n\r\n<strong><b>Standaard laboratoriumworkflow<\/b><\/strong>:\r\n<ol>\r\n \t<li>Voer tests uit met kleine monsters bij gradi\u00ebnten van 0,1%, 0,3%, 0,5% en 1,0% (gebaseerd op het totale verfvolume).<\/li>\r\n \t<li>Inspecteer de filmlaag na 48 uur: controleer de vloeibaarheid, glans en aanwezigheid van korstvorming.<\/li>\r\n \t<li>Bevestig de optimale dosering en voer vervolgens een piloottest uit met een schaal van 10x om risico's van massaproductie te vermijden.<\/li>\r\n<\/ol>\r\n<strong><b>Gegevensreferentie<\/b><\/strong>: De optimale dosering voor de meeste systemen ligt tussen 0,3%-0,8%; meer dan 1,0% verhoogt het risico op cratering met 300%.\r\n<h3><strong><b>2.3 Coatingtoepassingsmethoden: Aanpassingstips voor verschillende scenario's<\/b><\/strong><\/h3>\r\nDe prestaties van vloeimiddelen worden direct be\u00efnvloed door de manier van aanbrengen - een detail dat vaak over het hoofd wordt gezien:\r\n<ul>\r\n \t<li><b><\/b><strong><b>Borstelen\/Rollen<\/b><\/strong>: Kies nivelleermiddel voor acryl met een laag moleculair gewicht (verspreidt snel, vermindert strepen van de kwast).<\/li>\r\n \t<li><b><\/b><strong><b>Sproeien<\/b><\/strong>: Geef de voorkeur aan gemodificeerde nivelleermiddelen op siliconenbasis (lage oppervlaktespanning, snelle verspreiding, minimaliseert sinaasappelhuid).<\/li>\r\n \t<li><b><\/b><strong><b>Verticale coating<\/b><\/strong>: Mengsel van oplosmiddel + acryl Nivelleringsmiddelen (voorkomt uitzakken en behoudt glans).<\/li>\r\n<\/ul>\r\n<h3><strong><b>2.4 Mengtechnieken: Uniforme verspreiding is de sleutel<\/b><\/strong><\/h3>\r\nIn veel gevallen mislukken nivelleermiddelen niet door een slechte productkwaliteit, maar door verkeerd mengen. Mijn on-site operationele normen:\r\n<ul>\r\n \t<li><b><\/b><strong><b>Mengsnelheid<\/b><\/strong>: 300-500 omw\/min (te snel introduceert luchtbellen; te langzaam veroorzaakt ongelijkmatige dispersie).<\/li>\r\n \t<li><b><\/b><strong><b>Mengtijd<\/b><\/strong>: Aanpassen op basis van het type stromingsmiddel:<\/li>\r\n<\/ul>\r\n<ul>\r\n \t<li>Gemengd op basis van oplosmiddelen: 3-5 minuten (gemakkelijk te dispergeren).<\/li>\r\n \t<li>Op acryl\/siliconenbasis: 5-8 minuten (volledige dispersie vereist voor producten met hoog moleculair gewicht).\r\n<ul>\r\n \t<li><b><\/b><strong><b>Opmerking<\/b><\/strong>: Laat het mengsel 10 minuten staan voordat je het aanmaakt, zodat de luchtbellen die tijdens het mengen ontstaan vrijkomen.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h2><strong><b>III. 3 Hoogfrequente pijnpunten &amp; oplossingen voor het gebruik van stroomagenten<\/b><\/strong><\/h2>\r\n<h3><strong><b>3.1 Slechte herstelbaarheid: Stroming en regenereerbaarheid in evenwicht brengen<\/b><\/strong><\/h3>\r\nDit is het meest voorkomende probleem, vooral met nivelleermiddelen op siliconenbasis. Mijn oplossingen:\r\n<ul>\r\n \t<li>Geef de voorkeur aan acryl egaliseermiddelen met -OH\/-COOH groepen (optimale overschilderbaarheid).<\/li>\r\n \t<li>Als middelen op siliconenbasis verplicht zijn, kies dan polyether- of acrylgemodificeerde modellen en beperk de dosering tot \u22640,5%.<\/li>\r\n \t<li>Validatie: Voer een \"laag-droog-lak\" cyclustest uit om te controleren op rimpels\/randkraters in de tweede laag.<\/li>\r\n<\/ul>\r\n<h3><strong><b>3.2 Cratering: Is de stroomagent verkeerd geselecteerd?<\/b><\/strong><\/h3>\r\nCratering heeft twee hoofdoorzaken: <strong><b>incompatibiliteit tussen het vloeimiddel en de coating<\/b><\/strong>\u00a0of <strong><b>overmatige dosering<\/b><\/strong>. Volg deze stappen om het probleem op te lossen:\r\n<ol>\r\n \t<li><b><\/b><strong><b>Eliminatiemethode<\/b><\/strong>: Breng een klein mengsel van verf en vloeimiddel aan op een glasplaatje; randkraters duiden op onverenigbaarheid.<\/li>\r\n \t<li><b><\/b><strong><b>Aanpassingsplan<\/b><\/strong>: Verander van gemodificeerd type (bijv. siliconen vervangen door polyether gemodificeerd) of verlaag de dosering (telkens met 0,2% verminderen).<\/li>\r\n<\/ol>\r\n<ul>\r\n \t<li><b><\/b><strong><b>Casestudie<\/b><\/strong>: We hebben cratering in polyurethaan coatings opgelost door nivelleermiddelen op basis van siliconen te vervangen door acrylnivelleermiddelen en de dosering te verlagen van 0,8% naar 0,4%.<\/li>\r\n<\/ul>\r\n<div id=\"attachment_9549\" style=\"width: 3472px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-9549\" class=\"size-full wp-image-9549\" src=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-.webp\" alt=\"Egaliseermiddel\" width=\"3462\" height=\"2084\" srcset=\"https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent-.webp 3462w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--768x462.webp 768w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--1536x925.webp 1536w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--2048x1233.webp 2048w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--18x12.webp 18w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--1196x720.webp 1196w, https:\/\/changhongchemical.com\/wp-content\/uploads\/2026\/02\/Leveling-agent--600x361.webp 600w\" sizes=\"(max-width: 3462px) 100vw, 3462px\" \/><p id=\"caption-attachment-9549\" class=\"wp-caption-text\">Egaliseermiddel<\/p><\/div>\r\n<h3><strong><b>3.3 Compatibiliteitstesten: 3 snelle validatiemethoden<\/b><\/strong><\/h3>\r\nVeel gebruikers vinden compatibiliteitstesten omslachtig-3 eenvoudige methoden volstaan:\r\n<ol>\r\n \t<li><b><\/b><strong><b>Coatingmethode met glasplaatjes<\/b><\/strong>: Breng het mengsel aan op een glasplaatje; geen randkraters\/delaminatie na 24 uur = gekwalificeerd.<\/li>\r\n \t<li><b><\/b><strong><b>Stabiliteitstest bij opslag<\/b><\/strong>: Plaats in een oven van 50\u2103 gedurende 7 dagen; geen neerslag\/drijvende laag = gekwalificeerd.<\/li>\r\n \t<li><b><\/b><strong><b>Glansveranderingstest<\/b><\/strong>: Glansvariatie voor\/na toevoeging \u22645% (voorkomt glansverlies door slechte compatibiliteit).<\/li>\r\n<\/ol>\r\n<h2><strong><b>IV. Toekomstige trends: Ontwikkeling van multifunctionele stromingsagens<\/b><\/strong><\/h2>\r\nMet de strengere milieuvoorschriften kunnen egaliseermiddelen met \u00e9\u00e9n functie niet langer voldoen aan de eisen van de markt. Ik ontwikkel momenteel <strong><b>multifunctioneel <\/b><\/strong><strong><b>Nivelleermiddelen<\/b><\/strong><strong><b>\u00a0(vloei + krasbestendigheid + vlekbestendigheid)<\/b><\/strong>\u00a0via graft copolymerization of acrylates and fluorine-modified silicones. These agents maintain flow performance while boosting film scratch resistance and stain resistance.\r\n\r\nSuch multifunctional Leveling Agents\u00a0will become the mainstream, especially for high-end furniture coatings, automotive refinish coatings, and other sectors. If you have relevant needs, feel free to connect with me\u2014we can explore customized solutions together.\r\n<h2><strong><b>Afsluiting: Welke Flow Agent-problemen bent u tegengekomen?<\/b><\/strong><\/h2>\r\nThere are no absolute standards for flow agent selection and use\u2014only the most suitable solutions for your system. All the insights shared here are distilled from years of lab experiments and project practice.\r\n\r\nHave you faced unsolvable flow issues in your work? For example, selection for special coating systems, construction challenges in extreme environments, or balancing recoatability with flow performance? Leave a comment below, and let\u2019s discuss solutions together!\r\n\r\n&nbsp;\n\n\n<p><strong>Related product references:<\/strong> For formulation review or sourcing comparison, see <a href=\"https:\/\/changhongchemical.com\/product\/chlumiao-ho-17-17eh\/\">CHLUMIAO HO-17\/17EH<\/a> en <a href=\"https:\/\/changhongchemical.com\/product\/chlumiao-hs-502-503-504-603-605-608-101\/\">CHLUMIAO HS-502\/503\/504\/603\/605\/608\/101<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>After years of formulating coatings, I\u2019ve seen countless reworks caused by wrong selection or improper use of Leveling Agents\u2014scenarios like meeting gloss standards for the film layer yet facing wrinkling during recoating; solving cratering&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114],"tags":[],"class_list":["post-9546","post","type-post","status-publish","format-standard","hentry","category-catalysts-chemical-auxiliary-agents"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Do the Leveling Agents You Choose Always Cause Problems?- Changhong Chemical<\/title>\n<meta name=\"description\" content=\"Discover expert solutions to common coating flow agent problems! 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