{"id":12141,"date":"2026-01-23T02:36:29","date_gmt":"2026-01-23T02:36:29","guid":{"rendered":"https:\/\/rawchemicalmart.com\/?post_type=product&#038;p=12141"},"modified":"2026-01-23T06:48:30","modified_gmt":"2026-01-23T06:48:30","slug":"polyvinyl-alcohol-pva-20-88-medium-viscosity","status":"publish","type":"product","link":"https:\/\/rawchemicalmart.com\/pt\/produto\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/","title":{"rendered":"\u00c1lcool polivin\u00edlico (PVA) 20-88 \/ 2088"},"content":{"rendered":"<h2>Especifica\u00e7\u00f5es:<\/h2>\n<div class=\"table-scroll-wrapper\">\n<table id=\"tablepress-101\" class=\"tablepress tablepress-id-101\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Item<\/th><th class=\"column-2\">Especifica\u00e7\u00e3o<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Grau de alcoolise (mol%)<\/td><td class=\"column-2\">86.00 - 90.00<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Viscosidade (mPa\u00b7s)<\/td><td class=\"column-2\">28.0 - 43.0<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">  Teor de vol\u00e1teis (wt%, m\u00e1x.)<\/td><td class=\"column-2\">5<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">  Pureza (wt%, m\u00edn.)<\/td><td class=\"column-2\">93.5<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Valor de pH<\/td><td class=\"column-2\">5 ~ 7<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">  Teor de cinzas (wt%, m\u00e1x.)<\/td><td class=\"column-2\">0.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-101 from cache --><\/div>\n<div><b data-path-to-node=\"16,0\" data-index-in-node=\"0\">Observa\u00e7\u00e3o<\/b>A viscosidade \u00e9 medida em uma solu\u00e7\u00e3o aquosa de 4% a 20\u00b0C.<\/div>\n<div><\/div>\n<div>\n<h2>Principais caracter\u00edsticas:<\/h2>\n<div>\n<ul>\n<li>\n<p data-path-to-node=\"19,0,0\"><b data-path-to-node=\"19,0,0\" data-index-in-node=\"0\">Solubilidade<\/b>: Easily soluble in water. While it can dissolve slowly at room temperature, it is recommended to dissolve in <b data-path-to-node=\"19,0,0\" data-index-in-node=\"120\">hot water above 85\u00b0C<\/b> for efficiency.<\/p>\n<ul data-path-to-node=\"19,0,1\">\n<li>\n<p data-path-to-node=\"19,0,1,0,0\"><i data-path-to-node=\"19,0,1,0,0\" data-index-in-node=\"0\">Processing Tip<\/i>: Foam may be generated during dissolution; adding a defoaming agent is recommended.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"19,1,0\"><b data-path-to-node=\"19,1,0\" data-index-in-node=\"0\">Ponto de fus\u00e3o<\/b>: As a partially hydrolyzed grade, it begins to melt around <b data-path-to-node=\"19,1,0\" data-index-in-node=\"73\">180-190\u00b0C<\/b> and decomposes above 200\u00b0C.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"19,2,0\"><b data-path-to-node=\"19,2,0\" data-index-in-node=\"0\">Adesividade<\/b>: Exhibits excellent bonding strength not only to hydrophilic materials (cellulose, paper) but also to hydrophobic fibers.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"19,3,0\"><b data-path-to-node=\"19,3,0\" data-index-in-node=\"0\">Propriedades do filme<\/b>: Forms flexible, tough films with excellent barrier properties against gases.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"19,4,0\"><b data-path-to-node=\"19,4,0\" data-index-in-node=\"0\">Compatibilidade<\/b>: Compatible with starch, gums, and other emulsions.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2>Aplica\u00e7\u00f5es:<\/h2>\n<div>\n<ul>\n<li>\n<p data-path-to-node=\"22,0,0\"><b data-path-to-node=\"22,0,0\" data-index-in-node=\"0\">Coated Abrasives &amp; Molds<\/b>: Specifically used for <b data-path-to-node=\"22,0,0\" data-index-in-node=\"48\">base fabric stiffening<\/b> and reinforcement in the abrasives industry (e.g., sandpaper backing).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,1,0\"><b data-path-to-node=\"22,1,0\" data-index-in-node=\"0\">Adesivos<\/b>: Ideal for formulating <b data-path-to-node=\"22,1,0\" data-index-in-node=\"33\">re-wettable adhesives<\/b> (remoistening glues) used in postage stamps, envelopes, and paper tapes.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,2,0\"><b data-path-to-node=\"22,2,0\" data-index-in-node=\"0\">Ind\u00fastria t\u00eaxtil<\/b>: Used in fiber processing for short fibers and long filaments to improve weaving efficiency.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,3,0\"><b data-path-to-node=\"22,3,0\" data-index-in-node=\"0\">Processamento de filmes<\/b>: Used as a raw material for manufacturing water-soluble films.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"22,4,0\"><b data-path-to-node=\"22,4,0\" data-index-in-node=\"0\">Stabilizer<\/b>: Functions as a protective colloid in the polymerization of Vinyl Acetate (PVAc) emulsions.<\/p>\n<\/li>\n<\/ul>\n<h2>Embalagem:<\/h2>\n<ul>\n<li data-path-to-node=\"26,0,0\"><b data-path-to-node=\"26,0,0\" data-index-in-node=\"0\">Embalagem<\/b>25 kg por saco.<\/li>\n<li data-path-to-node=\"26,1,0\"><b data-path-to-node=\"26,1,0\" data-index-in-node=\"0\">Armazenar<\/b>Armazene em local fresco, seco e bem ventilado para evitar a forma\u00e7\u00e3o de grumos e a absor\u00e7\u00e3o de umidade.<\/li>\n<\/ul>\n<h2><strong><b>Produto<\/b><\/strong>\u00a0<strong><b>Armazenar:<\/b><\/strong><\/h2>\n<p>Conservar em local seco e bem ventilado para evitar a absor\u00e7\u00e3o de umidade.<\/p>\n<\/div>\n<h2>PERGUNTAS FREQUENTES:<\/h2>\n<p data-path-to-node=\"28\"><b data-path-to-node=\"28\" data-index-in-node=\"0\">Q: When should I choose PVA 20-88 over PVA 17-88?<\/b><\/p>\n<p data-path-to-node=\"28\">A: You should choose <b data-path-to-node=\"28\" data-index-in-node=\"71\">PVA 20-88<\/b> when you need slightly higher viscosity (<b data-path-to-node=\"28\" data-index-in-node=\"122\">28-43 mPa.s<\/b>) and stronger bonding strength than what 17-88 (19-32 mPa.s) can offer. It is ideal for applications where 17-88 is too thin or runny, such as in fabric stiffening or vertical adhesive applications.<\/p>\n<p data-path-to-node=\"29\"><b data-path-to-node=\"29\" data-index-in-node=\"0\">Q: Does PVA 20-88 foam during dissolving?<\/b><\/p>\n<p data-path-to-node=\"29\">A: Yes, like many partially hydrolyzed grades, it can generate foam during the dissolution process. We recommend adding a small amount of <b data-path-to-node=\"29\" data-index-in-node=\"180\">defoaming agent<\/b> (antifoam) during the heating process to ensure a clear, bubble-free solution.<\/p>\n<p data-path-to-node=\"30\"><b data-path-to-node=\"30\" data-index-in-node=\"0\">Q: What is the melting temperature of PVA 20-88?<\/b><\/p>\n<p data-path-to-node=\"30\">A: Unlike fully hydrolyzed grades which melt at higher temperatures (~230\u00b0C), PVA 20-88 begins to melt at a lower range of <b data-path-to-node=\"30\" data-index-in-node=\"172\">180-190\u00b0C<\/b>. This lower melting point can be advantageous in certain thermoplastic processing applications.<\/p>\n<p data-path-to-node=\"30\"><b data-path-to-node=\"33\" data-index-in-node=\"0\">Need Medium-High Viscosity PVA? <a href=\"https:\/\/rawchemicalmart.com\/pt\/contate-nos\/\">Solicite um or\u00e7amento<\/a>.<\/b> We supply premium Polyvinyl Alcohol 20-88 for specialized industrial applications.<\/p>","protected":false},"excerpt":{"rendered":"<p class=\"tmnf_excerpt\">Polyvinyl Alcohol 20-88 (also known as PVA 2088 or 088-35) is a partially hydrolyzed grade polymer characterized by a unique medium-high viscosity range.\nWith a viscosity of 28.0 &#8211; 43.0 mPa.s, PVA 20-88 offers stronger initial tack and film thickness compared to standard 17-88 grades, while maintaining better flow properties than high-viscosity 24-88 grades. This balance makes it the preferred choice for industrial applications requiring precise rheological control, such as stiffening agents for abrasives and re-wettable adhesives.\n<\/p>","protected":false},"featured_media":12152,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[58],"product_tag":[],"class_list":{"0":"post-12141","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-polyvinyl-alcohol-pva","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Polyvinyl Alcohol (PVA) 20-88 \/ 2088 | Medium-High Viscosity - RawChemicalMart<\/title>\n<meta name=\"description\" content=\"Buy Polyvinyl Alcohol 20-88 (PVA 2088\/088-35). A partially hydrolyzed grade with medium-high viscosity (28-43 mPa.s). Ideal for textile sizing, abrasive backings, and re-wettable adhesives. View TDS.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rawchemicalmart.com\/pt\/produto\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Polyvinyl Alcohol (PVA) 20-88 \/ 2088 | Medium-High Viscosity - RawChemicalMart\" \/>\n<meta property=\"og:description\" content=\"Buy Polyvinyl Alcohol 20-88 (PVA 2088\/088-35). A partially hydrolyzed grade with medium-high viscosity (28-43 mPa.s). Ideal for textile sizing, abrasive backings, and re-wettable adhesives. 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A partially hydrolyzed grade with medium-high viscosity (28-43 mPa.s). Ideal for textile sizing, abrasive backings, and re-wettable adhesives. View TDS.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/rawchemicalmart.com\/pt\/produto\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/","og_locale":"pt_BR","og_type":"article","og_title":"Polyvinyl Alcohol (PVA) 20-88 \/ 2088 | Medium-High Viscosity - RawChemicalMart","og_description":"Buy Polyvinyl Alcohol 20-88 (PVA 2088\/088-35). A partially hydrolyzed grade with medium-high viscosity (28-43 mPa.s). Ideal for textile sizing, abrasive backings, and re-wettable adhesives. View TDS.","og_url":"https:\/\/rawchemicalmart.com\/pt\/produto\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/","og_site_name":"rawchemicalmart.com","article_modified_time":"2026-01-23T06:48:30+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/rawchemicalmart.com\/wp-content\/uploads\/2026\/01\/Polyvinyl_alcohol_PVA_2088.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. tempo de leitura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rawchemicalmart.com\/product\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/","url":"https:\/\/rawchemicalmart.com\/product\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/","name":"Polyvinyl Alcohol (PVA) 20-88 \/ 2088 | Medium-High Viscosity - RawChemicalMart","isPartOf":{"@id":"https:\/\/rawchemicalmart.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/rawchemicalmart.com\/product\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/#primaryimage"},"image":{"@id":"https:\/\/rawchemicalmart.com\/product\/polyvinyl-alcohol-pva-20-88-medium-viscosity\/#primaryimage"},"thumbnailUrl":"https:\/\/rawchemicalmart.com\/wp-content\/uploads\/2026\/01\/Polyvinyl_alcohol_PVA_2088.jpg","datePublished":"2026-01-23T02:36:29+00:00","dateModified":"2026-01-23T06:48:30+00:00","description":"Buy Polyvinyl Alcohol 20-88 (PVA 2088\/088-35). A partially hydrolyzed grade with medium-high viscosity (28-43 mPa.s). Ideal for textile sizing, abrasive backings, and re-wettable adhesives. 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