{"id":11522,"date":"2026-10-12T08:14:20","date_gmt":"2026-10-12T08:14:20","guid":{"rendered":"https:\/\/longchangchemical.com\/?post_type=product&#038;p=11522"},"modified":"2026-10-12T08:16:29","modified_gmt":"2026-10-12T08:16:29","slug":"chlumicryl-wpu-1128","status":"publish","type":"product","link":"https:\/\/longchangchemical.com\/nl\/product\/chlumicryl-wpu-1128\/","title":{"rendered":"CHLUMICRYL\u00ae WPU-1128 Self-Crosslinking Aromatic Waterborne Polyurethane Resin"},"content":{"rendered":"<h2>Product Overview<\/h2>\n<p>CHLUMICRYL\u00ae WPU-1128 is designed for applications that require an elastic film with a dry surface rather than a tacky finish. The aromatic polyurethane dispersion is self-crosslinking and is positioned for bag and garment leather, synthetic leather topcoats, printing pastes and waterborne inks. Its stated mechanical profile includes a 100% modulus of 1.5-3 MPa and elongation of at least 400%. Knife-coating is an indicated application route. Keep this anionic resin separate from cationic pastes and solvent-based pastes unless a specifically validated formulation procedure establishes compatibility and acceptable coating performance.<\/p>\n<h3>Grade Characteristics<\/h3>\n<ul>\n<li>Self-crosslinking polyurethane binder<\/li>\n<li>Elastic, strong film with a dry surface feel<\/li>\n<li>Color development<\/li>\n<li>Suitable for knife-coating trials<\/li>\n<\/ul>\n<h3>Technical Data<\/h3>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th scope=\"col\">Eigendom<\/th>\n<th scope=\"col\">Waarde<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Brand and grade<\/td>\n<td>CHLUMICRYL\u00ae WPU-1128<\/td>\n<\/tr>\n<tr>\n<td>Uiterlijk<\/td>\n<td>Melkachtige witte vloeistof<\/td>\n<\/tr>\n<tr>\n<td>Vastestofgehalte<\/td>\n<td>27 \u00b1 1%<\/td>\n<\/tr>\n<tr>\n<td>pH<\/td>\n<td>6-8<\/td>\n<\/tr>\n<tr>\n<td>Ionic type<\/td>\n<td>Anionic<\/td>\n<\/tr>\n<tr>\n<td>100% modulus<\/td>\n<td>1.5-3 MPa<\/td>\n<\/tr>\n<tr>\n<td>Tensile strength at break<\/td>\n<td>\u2265 10 MPa<\/td>\n<\/tr>\n<tr>\n<td>Elongation<\/td>\n<td>\u2265 400%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>These values are technical selection data, not a batch-specific certificate of analysis. Test methods, current specifications and any acceptance limits should be confirmed before ordering.<\/p>\n<h3>Toepassingen<\/h3>\n<ul>\n<li>Bag and garment leather<\/li>\n<li>Synthetic leather topcoats<\/li>\n<li>Printing pastes<\/li>\n<li>Waterborne inks<\/li>\n<li>Leather surface treatments<\/li>\n<\/ul>\n<h3>Formulation and Handling<\/h3>\n<p>Do not directly mix with cationic pastes or solvent-based pastes.<\/p>\n<p>A coating application amount of 100-150 g\/m\u00b2 is indicated as a trial starting range; verify the wet\/dry basis and suitability for the intended process before use.<\/p>\n<ul>\n<li>Wet-heat anti-tack performance requires a defined formulation, conditioning procedure and test method; no universal numerical rating is guaranteed.<\/li>\n<\/ul>\n<p>Check binder compatibility, substrate preparation, application conditions and final coating or bond performance in your own formulation. Waterborne use does not by itself establish solvent-free status or a hazard classification. Consult the current safety data sheet and use appropriate industrial handling controls.<\/p>\n<h3>Verpakking en opslag<\/h3>\n<p>50 kg or 120 kg plastic drums.<\/p>\n<p>Store at 5-30 \u00b0C in a cool, dry, well-ventilated place. Protect from freezing and light. Stated storage life: 6-12 months; confirm the applicable batch shelf life when ordering.<\/p>\n<h3>Request Technical Information or a Sample<\/h3>\n<p>Contact Longchang Chemical with the intended substrate, formulation system, process conditions and required performance. Ask for the current TDS, SDS, sample availability and quotation using the inquiry form below or email <a href=\"mailto:info@longchangchemical.com\">info@longchangchemical.com<\/a>.<\/p>\n<p><a href=\"https:\/\/longchangchemical.com\/nl\/product-category\/waterborne-resins\/waterborne-polyurethane-resins\/\">Explore Waterborne Polyurethane &amp; PU-Modified Resins<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>CHLUMICRYL\u00ae WPU-1128 is an anionic, self-crosslinking aromatic polyurethane resin for flexible leather finishes, printing pastes and waterborne inks. It combines a dry surface feel with elasticity, strength and color development. The 27 \u00b1 1% solids dispersion is suitable for knife-coating trials and synthetic leather topcoat formulations.<\/p>","protected":false},"featured_media":11523,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[214,215],"product_tag":[],"class_list":{"0":"post-11522","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-waterborne-resins","7":"product_cat-waterborne-polyurethane-resins","9":"first","10":"instock","11":"shipping-taxable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CHLUMICRYL\u00ae WPU-1128 Self-Crosslinking Aromatic Waterborne Polyurethane Resin | Longchang Chemical<\/title>\n<meta name=\"description\" content=\"CHLUMICRYL\u00ae WPU-1128 is an anionic, self-crosslinking aromatic polyurethane resin for flexible leather finishes, printing pastes and waterborne inks. 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