{"id":916,"date":"2026-05-31T14:22:37","date_gmt":"2026-05-31T06:22:37","guid":{"rendered":"https:\/\/bastone-petrochem.com\/?p=916"},"modified":"2026-06-01T12:03:31","modified_gmt":"2026-06-01T04:03:31","slug":"decide-between-three-main-grades-polypropylene-resin","status":"publish","type":"post","link":"https:\/\/bastone-petrochem.com\/es\/decide-between-three-main-grades-polypropylene-resin\/","title":{"rendered":"How to Decide Between the Three Main Grades of Polypropylene Resin"},"content":{"rendered":"\n<p>Specifiers usually arrive at this decision the same way. A supplier sends a quote with a four-character grade code and an MFI number, and the question shifts from &#8220;which PP family&#8221; to &#8220;is this the right family for what I&#8217;m building.&#8221;<\/p>\n\n\n\n<p>For the China-sourced specifier, family selection and producer-channel selection are one decision, not two. A producer-coded grade is a PetroChina or Sinopec namespace identifier. Picking a family without picking a channel leaves you unable to map the decision to anything a supplier can actually deliver.<\/p>\n\n\n\n<p>The three main grade families of polypropylene resin \u2014 homopolymer (HP), random copolymer (RCP), and impact \/ block copolymer (ICP\/BCP) \u2014 answer different application questions. For the underlying chemistry, the <a href=\"https:\/\/bastone-petrochem.com\/what-is-polypropylene-resin\/\">three main grade families of polypropylene<\/a> background article is the companion piece.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Five Criteria That Decide Which PP Family Fits Your Application<\/h2>\n\n\n\n<p>Five spec-sheet numbers decide the family pick:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>MFI window<\/strong> \u2014 processing speed, part geometry<\/li>\n<li><strong>Crystallinity \/ melting point<\/strong> \u2014 stiffness, heat-deflection ceiling<\/li>\n<li><strong>Impact at temperature<\/strong> \u2014 sub-zero survival<\/li>\n<li><strong>Clarity<\/strong> \u2014 clear bottle vs. opaque crate<\/li>\n<li><strong>Cost<\/strong> \u2014 homopolymer is the floor; ICP carries a premium for the EPR rubber phase<\/li>\n<\/ul>\n\n\n\n<p>Each axis pushes you toward a different family: clarity and pipe-rated long-term strength land you in RCP, sub-zero impact lands you in ICP, pure stiffness and lowest cost land you in HP.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Family<\/th><th>Tm (\u00b0C)<\/th><th>Density (g\/cm\u00b3)<\/th><th>Low-temp ductility<\/th><th>Typical applications<\/th><th>China-channel SKU examples<\/th><\/tr><\/thead><tbody><tr><td>Homopolymer (HP)<\/td><td>160\u2013165<\/td><td>0.904\u20130.908<\/td><td>Brittle below 0 \u00b0C<\/td><td>Woven bag tape, FIBC, monofilament, fiber, non-woven, rigid injection<\/td><td>T30S, S1003, S2025<\/td><\/tr><tr><td>Random copolymer (RCP)<\/td><td>135\u2013159<\/td><td>0.904\u20130.908<\/td><td>Ductile near 0 \u00b0C<\/td><td>PP-R hot\/cold water pipe, clear thin-wall packaging, blow-molded bottles<\/td><td>T4401<\/td><\/tr><tr><td>Impact \/ block copolymer (ICP\/BCP)<\/td><td>160\u2013165<\/td><td>0.898\u20130.900<\/td><td>Ductile to ~\u221220 \u00b0C<\/td><td>Automotive bumpers, battery cases, freezer containers, drop-tested housings<\/td><td>ICP grades on PetroChina \/ Sinopec \/ CNOOC channel<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Choose Homopolymer (HP) for Stiffness-First PP Applications<\/h2>\n\n\n\n<p>Homopolymer polypropylene wins when stiffness, rigidity, and cost matter more than clarity or sub-zero toughness. Paul Martin&#8217;s Machine Design breakdown describes the chain as &#8220;only propylene monomer in a semi-crystalline solid form.&#8221;<\/p>\n\n\n\n<p>That structure gives HP the highest melting point in the family (160\u2013165 \u00b0C) and a density of 0.904\u20130.908 g\/cm\u00b3. HP is brittle below 0 \u00b0C. A part that lives in a freezer or a winter outdoor loading dock should not be specified in homopolymer.<\/p>\n\n\n\n<p>The HP slot is wide commercially across the PetroChina and Sinopec channels:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T30S<\/strong> \u2014 canonical monofilament and tape grade for woven sacks, rope, and FIBC tape extrusion<\/li>\n<li><strong>S1003<\/strong> \u2014 same window with slightly different MFI tuning<\/li>\n<li><strong>S2025<\/strong> \u2014 fiber and spunbond non-woven applications<\/li>\n<\/ul>\n\n\n\n<p>Tape-extrusion quotes I see most often run through this HP grade set.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\" alt=\"Homopolymer polypropylene resin pellets next to woven bag tape samples for tape-extrusion applications\" class=\"wp-image-915\" srcset=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png 1376w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1-300x167.png 300w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1-1024x572.png 1024w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1-768x429.png 768w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1-600x335.png 600w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Choose Random Copolymer (RCP) for PP-R Pipe and Clear Packaging<\/h2>\n\n\n\n<p>Random copolymer polypropylene wins for PP-R hot and cold water pipe and for thin-wall packaging where you need both clarity and some flex. Up to about 6% ethene is scattered randomly through the chain. This disrupts crystallinity, drops the melting point into the 135\u2013159 \u00b0C range, and pulls the brittleness floor close to 0 \u00b0C while opening up clarity.<\/p>\n\n\n\n<p>Pipe-grade random copolymer such as PetroChina Dushanzi T4401 sits in this family. Ascent Petrochem publishes T4401 at 0.25 g\/10min MFI (230 \u00b0C \/ 2.16 kg), density 0.90 g\/cm\u00b3, and 95 \u00b0C maximum operating temperature for PP-R hot\/cold-water pipe.<\/p>\n\n\n\n<p>PetroChina Dushanzi operates a 550 KTA Innovene PP plant licensed by INEOS \u2014 the published producer behind T4401&#8217;s PP-R slot in our channel.<\/p>\n\n\n\n<p>If you&#8217;re sourcing PP for cold and hot water pipe, target a random copolymer in the 0.25\u20130.30 g\/10min MFI band. T4401 is the most common reference, with Sinopec equivalents available as a second source.<\/p>\n\n\n\n<p>Don&#8217;t substitute homopolymer for random copolymer in a pipe application without re-qualifying. Homopolymer is brittle near 0 \u00b0C and does not carry the long-term hydrostatic strength rating for PP-R. That&#8217;s a re-qualification gate, not a price-list swap.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2.png\" alt=\"PP-R random copolymer polypropylene resin pipe samples for hot and cold water systems\" class=\"wp-image-913\" srcset=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2.png 1376w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2-300x167.png 300w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2-1024x572.png 1024w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2-768x429.png 768w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-2-600x335.png 600w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Choose Impact Copolymer (ICP\/BCP) for Sub-Zero and Drop-Test Applications<\/h2>\n\n\n\n<p>Impact copolymer polypropylene wins when the part has to survive sub-zero impact or drop-test abuse: automotive bumpers, battery cases, freezer containers. The morphology is a homopolymer matrix with a co-mixed propylene random copolymer phase carrying 45\u201365% ethylene in the rubber phase.<\/p>\n\n\n\n<p>That dispersed ethylene-propylene rubber (EPR) phase is what survives cold impact while the matrix keeps overall stiffness reasonable. Density drops slightly to 0.898\u20130.900 g\/cm\u00b3, and ductility holds down to roughly \u221220 \u00b0C.<\/p>\n\n\n\n<p>Within the ICP family, the MFI window itself is a selection axis. Pedro Zaccaria of Syntex America reports that moving from P640J (MFI 10) to P945J (MFI 65) in the SCGC P-series drops notched Izod at 23 \u00b0C by about 34% (98 \u2192 65 J\/m). Flexural modulus rises about 17% (1,177 \u2192 1,373 MPa) over the same span.<\/p>\n\n\n\n<p>Zaccaria puts the cross-family version of the same point plainly: the decision between homopolymer and impact copolymer is &#8220;not flow \u2014 it is morphology&#8221; because the EPR phase is what survives sub-zero impact. ICP grades are available on request from <a href=\"\/top-10-polypropylene-resin-suppliers\/\">PetroChina, Sinopec, and CNOOC channel suppliers<\/a>. The specific code depends on the application&#8217;s target MFI and impact-temperature spec.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3.png\" alt=\"Impact copolymer polypropylene resin morphology diagram showing EPR rubber phase dispersed in homopolymer matrix\" class=\"wp-image-914\" srcset=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3.png 1376w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3-300x167.png 300w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3-1024x572.png 1024w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3-768x429.png 768w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-3-600x335.png 600w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Why the Polypropylene Grade Code on Your Quote Decides the Family Choice<\/h2>\n\n\n\n<p>The grade code on a Chinese polypropylene quote is a PetroChina or Sinopec namespace identifier, not a generic ASTM ID. The MFI a buyer receives depends on which producer&#8217;s version of the code is quoted.<\/p>\n\n\n\n<p>Ascent Petrochem publishes T4401 at MFI 0.25 g\/10min for PP-R pipe. Chemdo lists &#8220;PP pipe grade T4401&#8221; aligned with PPH-Y40 \/ H39S at a nominal 40 g\/10min per GB\/T 3682.1-2018. Same four-character code, two distributor pages, roughly a 160\u00d7 MFI ratio \u2014 each is pointing at a different producer&#8217;s namespace.<\/p>\n\n\n\n<p>When I&#8217;m qualifying a new PP supplier \u2014 say adding PetroChina Dushanzi T4401 as a second source for a Sinopec primary \u2014 I run three lots through the line before signing anything. The original supplier stays on hot standby for the first quarter.<\/p>\n\n\n\n<p>Before sending an RFQ, <a href=\"https:\/\/bastone-petrochem.com\/compare\/\">compare grades across PetroChina, Sinopec, and other producers<\/a>. Work the channel side in parallel with the family side, not after.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4.png\" alt=\"Polypropylene resin supplier quotation document showing grade code and MFI fields for the China sourcing channel\" class=\"wp-image-912\" srcset=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4.png 1376w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4-300x167.png 300w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4-1024x572.png 1024w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4-768x429.png 768w, https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-4-600x335.png 600w\" sizes=\"auto, (max-width: 1376px) 100vw, 1376px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Making the Polypropylene Grade Decision<\/h2>\n\n\n\n<p>Qualify before you commit. Send the spec-aligned RFQ with both the family (HP \/ RCP \/ ICP) and the producer-namespace grade code on the same line. Ask for the producer&#8217;s COA with MFI, density, and the relevant impact or Tm number \u2014 then run a real lot before locking annual volume.<\/p>\n\n\n\n<p>Family selection and producer-channel selection remain one decision, not two. A family pick without a channel pick leaves the spec unfinishable.<\/p>\n\n\n\n<p>Homopolymer for stiffness and lowest cost; random copolymer for pipe and clarity; impact copolymer for sub-zero and drop-tested service \u2014 and underneath each, a producer name your supplier can actually ship from.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BlogPosting\",\n  \"@id\": \"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\",\n  \"mainEntityOfPage\": {\n    \"@type\": \"WebPage\",\n    \"@id\": \"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\"\n  },\n  \"headline\": \"How to Decide Between the Three Main Grades of Polypropylene Resin\",\n  \"author\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Bastone Petrochem (Zhejiang Bastone Technology Co., Ltd \u2014 Petrochemical Distribution Arm)\",\n    \"url\": \"https:\/\/bastone-petrochem.com\"\n  },\n  \"publisher\": {\n    \"@type\": \"Organization\",\n    \"name\": \"Bastone Petrochem (Zhejiang Bastone Technology Co., Ltd \u2014 Petrochemical Distribution Arm)\",\n    \"url\": \"https:\/\/bastone-petrochem.com\"\n  },\n  \"wordCount\": 1147,\n  \"description\": \"Specifiers usually arrive at this decision the same way. A supplier sends a quote with a four-character grade code and an MFI number, and the question shifts...\",\n  \"articleSection\": [\n    \"Five Criteria That Decide Which PP Family Fits Your Application\",\n    \"How to Choose Homopolymer (HP) for Stiffness-First PP Applications\",\n    \"How to Choose Random Copolymer (RCP) for PP-R Pipe and Clear Packaging\",\n    \"How to Choose Impact Copolymer (ICP\/BCP) for Sub-Zero and Drop-Test Applications\",\n    \"Why the Polypropylene Grade Code on Your Quote Decides the Family Choice\",\n    \"Making the Polypropylene Grade Decision\"\n  ],\n  \"datePublished\": \"2026-05-31T14:22:37+00:00\",\n  \"image\": \"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\",\n  \"mentions\": [\n    {\n      \"@type\": \"Thing\",\n      \"name\": \"MFI window\"\n    },\n    {\n      \"@type\": \"Thing\",\n      \"name\": \"S2025\"\n    },\n    {\n      \"@type\": \"Thing\",\n      \"name\": \"Impact at temperature\"\n    },\n    {\n      \"@type\": \"Thing\",\n      \"name\": \"Zero and Drop\"\n    },\n    {\n      \"@type\": \"Thing\",\n      \"name\": \"Which PP Family Fits\"\n    }\n  ]\n}\n<\/script>\n\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 1,\n      \"name\": \"Home\",\n      \"item\": \"https:\/\/bastone-petrochem.com\/\"\n    },\n    {\n      \"@type\": \"ListItem\",\n      \"position\": 2,\n      \"name\": \"How to Decide Between the Three Main Grades of Polypropylene Resin\",\n      \"item\": \"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\"\n    }\n  ]\n}\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Specifiers usually arrive at this decision the same way. A supplier sends a quote with a four-character grade code and an MFI number, and the question shifts from &#8220;which PP family&#8221; to &#8220;is this the right family for what I&#8217;m building.&#8221; For the China-sourced specifier, family selection and producer-channel selection are one decision, not two. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":915,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v19.6 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Decide Between the Three Main Grades of Polypropylene Resin - BASTONE<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bastone-petrochem.com\/es\/decide-between-three-main-grades-polypropylene-resin\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Decide Between the Three Main Grades of Polypropylene Resin\" \/>\n<meta property=\"og:description\" content=\"Specifiers usually arrive at this decision the same way. A supplier sends a quote with a four-character grade code and an MFI number, and the question shifts from &#8220;which PP family&#8221; to &#8220;is this the right family for what I&#8217;m building.&#8221; For the China-sourced specifier, family selection and producer-channel selection are one decision, not two. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bastone-petrochem.com\/es\/decide-between-three-main-grades-polypropylene-resin\/\" \/>\n<meta property=\"og:site_name\" content=\"BASTONE\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-31T06:22:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-01T04:03:31+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1376\" \/>\n\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Stoneexpert\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\"},\"author\":{\"name\":\"Stoneexpert\",\"@id\":\"https:\/\/bastone-petrochem.com\/#\/schema\/person\/e7ac5c8da49e0875ec220147ea11b63b\"},\"headline\":\"How to Decide Between the Three Main Grades of Polypropylene Resin\",\"datePublished\":\"2026-05-31T06:22:37+00:00\",\"dateModified\":\"2026-06-01T04:03:31+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\"},\"wordCount\":1091,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/bastone-petrochem.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\",\"url\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\",\"name\":\"How to Decide Between the Three Main Grades of Polypropylene Resin - BASTONE\",\"isPartOf\":{\"@id\":\"https:\/\/bastone-petrochem.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\",\"datePublished\":\"2026-05-31T06:22:37+00:00\",\"dateModified\":\"2026-06-01T04:03:31+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#breadcrumb\"},\"inLanguage\":\"es\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage\",\"url\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\",\"contentUrl\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png\",\"width\":1376,\"height\":768,\"caption\":\"Homopolymer polypropylene resin pellets next to woven bag tape samples for tape-extrusion applications\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/bastone-petrochem.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to Decide Between the Three Main Grades of Polypropylene Resin\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/bastone-petrochem.com\/#website\",\"url\":\"https:\/\/bastone-petrochem.com\/\",\"name\":\"BASTONE\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/bastone-petrochem.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/bastone-petrochem.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/bastone-petrochem.com\/#organization\",\"name\":\"BASTONE\",\"url\":\"https:\/\/bastone-petrochem.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/bastone-petrochem.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2022\/12\/cropped-site_icon-1.png\",\"contentUrl\":\"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2022\/12\/cropped-site_icon-1.png\",\"width\":512,\"height\":512,\"caption\":\"BASTONE\"},\"image\":{\"@id\":\"https:\/\/bastone-petrochem.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/bastone-petrochem.com\/#\/schema\/person\/e7ac5c8da49e0875ec220147ea11b63b\",\"name\":\"Stoneexpert\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es\",\"@id\":\"https:\/\/bastone-petrochem.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/ccbc3bd4b33231373976b8b8852b2182bef518e4e4af70fdf506c36010f421ec?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/ccbc3bd4b33231373976b8b8852b2182bef518e4e4af70fdf506c36010f421ec?s=96&d=mm&r=g\",\"caption\":\"Stoneexpert\"},\"url\":\"https:\/\/bastone-petrochem.com\/es\/author\/zmd88259886gmail-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How to Decide Between the Three Main Grades of Polypropylene Resin - BASTONE","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:\/\/bastone-petrochem.com\/es\/decide-between-three-main-grades-polypropylene-resin\/","og_locale":"es_ES","og_type":"article","og_title":"How to Decide Between the Three Main Grades of Polypropylene Resin","og_description":"Specifiers usually arrive at this decision the same way. A supplier sends a quote with a four-character grade code and an MFI number, and the question shifts from &#8220;which PP family&#8221; to &#8220;is this the right family for what I&#8217;m building.&#8221; For the China-sourced specifier, family selection and producer-channel selection are one decision, not two. [&hellip;]","og_url":"https:\/\/bastone-petrochem.com\/es\/decide-between-three-main-grades-polypropylene-resin\/","og_site_name":"BASTONE","article_published_time":"2026-05-31T06:22:37+00:00","article_modified_time":"2026-06-01T04:03:31+00:00","og_image":[{"width":1376,"height":768,"url":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png","type":"image\/png"}],"author":"Stoneexpert","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#article","isPartOf":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/"},"author":{"name":"Stoneexpert","@id":"https:\/\/bastone-petrochem.com\/#\/schema\/person\/e7ac5c8da49e0875ec220147ea11b63b"},"headline":"How to Decide Between the Three Main Grades of Polypropylene Resin","datePublished":"2026-05-31T06:22:37+00:00","dateModified":"2026-06-01T04:03:31+00:00","mainEntityOfPage":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/"},"wordCount":1091,"commentCount":0,"publisher":{"@id":"https:\/\/bastone-petrochem.com\/#organization"},"image":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage"},"thumbnailUrl":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png","articleSection":["Uncategorized"],"inLanguage":"es","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/","url":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/","name":"How to Decide Between the Three Main Grades of Polypropylene Resin - BASTONE","isPartOf":{"@id":"https:\/\/bastone-petrochem.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage"},"image":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage"},"thumbnailUrl":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png","datePublished":"2026-05-31T06:22:37+00:00","dateModified":"2026-06-01T04:03:31+00:00","breadcrumb":{"@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#breadcrumb"},"inLanguage":"es","potentialAction":[{"@type":"ReadAction","target":["https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/"]}]},{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#primaryimage","url":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png","contentUrl":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2026\/05\/how-to-decide-between-the-three-main-grades-of-polypropylene-resin-1.png","width":1376,"height":768,"caption":"Homopolymer polypropylene resin pellets next to woven bag tape samples for tape-extrusion applications"},{"@type":"BreadcrumbList","@id":"https:\/\/bastone-petrochem.com\/decide-between-three-main-grades-polypropylene-resin\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/bastone-petrochem.com\/"},{"@type":"ListItem","position":2,"name":"How to Decide Between the Three Main Grades of Polypropylene Resin"}]},{"@type":"WebSite","@id":"https:\/\/bastone-petrochem.com\/#website","url":"https:\/\/bastone-petrochem.com\/","name":"BASTONE","description":"","publisher":{"@id":"https:\/\/bastone-petrochem.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/bastone-petrochem.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es"},{"@type":"Organization","@id":"https:\/\/bastone-petrochem.com\/#organization","name":"BASTONE","url":"https:\/\/bastone-petrochem.com\/","logo":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/bastone-petrochem.com\/#\/schema\/logo\/image\/","url":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2022\/12\/cropped-site_icon-1.png","contentUrl":"https:\/\/bastone-petrochem.com\/wp-content\/uploads\/2022\/12\/cropped-site_icon-1.png","width":512,"height":512,"caption":"BASTONE"},"image":{"@id":"https:\/\/bastone-petrochem.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/bastone-petrochem.com\/#\/schema\/person\/e7ac5c8da49e0875ec220147ea11b63b","name":"Stoneexpert","image":{"@type":"ImageObject","inLanguage":"es","@id":"https:\/\/bastone-petrochem.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/ccbc3bd4b33231373976b8b8852b2182bef518e4e4af70fdf506c36010f421ec?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/ccbc3bd4b33231373976b8b8852b2182bef518e4e4af70fdf506c36010f421ec?s=96&d=mm&r=g","caption":"Stoneexpert"},"url":"https:\/\/bastone-petrochem.com\/es\/author\/zmd88259886gmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/posts\/916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/comments?post=916"}],"version-history":[{"count":0,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/posts\/916\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/media\/915"}],"wp:attachment":[{"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/media?parent=916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/categories?post=916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bastone-petrochem.com\/es\/wp-json\/wp\/v2\/tags?post=916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}