{"id":829,"date":"2026-05-06T10:45:09","date_gmt":"2026-05-06T02:45:09","guid":{"rendered":"https:\/\/bastone-petrochem.com\/?post_type=product&#038;p=829"},"modified":"2026-06-08T13:20:05","modified_gmt":"2026-06-08T05:20:05","slug":"stl-gpps-525","status":"publish","type":"product","link":"https:\/\/bastone-petrochem.com\/es\/product\/stl-gpps-525\/","title":{"rendered":"STL GPPS 525 | LianYunGang Petrochemical | Resina de Poliestireno de Prop\u00f3sito General para Aplicaciones Transparentes"},"content":{"rendered":"<div data-test-render-count=\"1\">\n<div class=\"group\">\n<div class=\"contents\">\n<div class=\"group relative relative pb-3\" data-is-streaming=\"false\">\n<div class=\"font-claude-response relative leading-[1.65rem] [&amp;_pre&gt;div]:bg-bg-000\/50 [&amp;_pre&gt;div]:border-0.5 [&amp;_pre&gt;div]:border-border-400 [&amp;_.ignore-pre-bg&gt;div]:bg-transparent [&amp;_.standard-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.standard-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8 [&amp;_.progressive-markdown_:is(p,blockquote,h1,h2,h3,h4,h5,h6)]:pl-2 [&amp;_.progressive-markdown_:is(p,blockquote,ul,ol,h1,h2,h3,h4,h5,h6)]:pr-8\">\n<div class=\"standard-markdown grid-cols-1 grid [&amp;_&gt;_*]:min-w-0 gap-3 standard-markdown\">\n<p>Lianyungang Petrochemical produces STL GPPS 525 as a crystal-clear, hard polymer. Production facilities synthesize the resin using continuous bulk polymerization processes to ensure minimal residual monomers. The resulting plastic pellets offer high clarity and rigidity for injection molding and extrusion processes across multiple manufacturing sectors.<\/p>\n<p>Extruders and molders require predictable thermal behavior to maintain production speeds. STL 525 delivers a melt mass-flow rate of 8\u00b12 g\/10min at 200\u00b0C, allowing fast mold filling for thin-walled parts. A Vicat softening temperature exceeding 85\u00b0C guarantees finished products maintain structural integrity during transport and warehouse storage.<\/p>\n<p>Contamination ruins transparent plastic production. Lianyungang Petrochemical enforces strict visual appearance standards for STL 525 granules. Quality inspection reports confirm zero black granules and limit black spots to fewer than 20 per kilogram. Molders avoid costly reject rates because the raw material arrives free from carbonized particles and color impurities.<\/p>\n<p>Optical clarity defines the commercial value of general-purpose polystyrene. Inspection reports for STL 525 show a luminous transmittance above 85% and a haze value strictly controlled under 1.2%. Low yellowness index limits (-15 to -1) guarantee clear containers and display cases resist unwanted discoloration over time.<\/p>\n<p>BASTONE Petrochem distributes factory-direct allocations of STL GPPS 525. Our supply chain team secures material directly from Lianyungang Petrochemical and top Chinese producers. Every shipment arrives with a complete Certificate of Analysis (COA) traceable to the exact production batch, ensuring formulators receive the precise specifications they ordered.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p data-path-to-node=\"1\" data-imt-p=\"1\">STL GPPS 525 es una resina de poliestireno de uso general fabricada por Lianyungang Petrochemical Co., Ltd. Los compradores especifican el material por su alta transmitancia luminosa, baja turbidez y tasa de flujo de fusi\u00f3n constante.<\/p>\n<p data-path-to-node=\"1\" data-imt-p=\"1\">Los fabricantes downstream dependen de la resina para producir envases transparentes para alimentos, utensilios desechables, carcasas de electrodom\u00e9sticos y l\u00e1minas transparentes extruidas.<\/p>","protected":false},"featured_media":830,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[57],"product_tag":[],"class_list":{"0":"post-829","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gpps","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>STL GPPS 525 Clear Polystyrene Resin | BASTONE<\/title>\n<meta name=\"description\" content=\"Source STL GPPS 525 GPPS resin from Lianyungang Petrochemical with factory COA. 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