{"id":4092,"date":"2026-01-11T09:00:00","date_gmt":"2026-01-11T09:00:00","guid":{"rendered":"https:\/\/www.desopipe.com\/?p=4092"},"modified":"2026-02-06T03:44:28","modified_gmt":"2026-02-06T03:44:28","slug":"ppr-pipe-low-quality-recycled-plastic-signs","status":"publish","type":"post","link":"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/","title":{"rendered":"Erkennung von gef\u00e4lschten Materialien: 5 Anzeichen f\u00fcr minderwertigen Recyclingkunststoff in PPR-Systemen"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Inhaltsverzeichnis<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Inhaltsverzeichnis ein-\/ausblenden\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Umschalten<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#1_Surface_Defects_and_Texture_Problems\" >1. Oberfl\u00e4chenfehler und Texturprobleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#2_Color_Inconsistency_and_Lack_of_Luster\" >2. Farbungleichm\u00e4\u00dfigkeit und fehlender Glanz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#3_Pungent_Odor_During_Heating\" >3. Stechender Geruch beim Erhitzen<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#4_Unstable_Melting_and_Weak_Welds\" >4. Instabiles Schmelzen und schwache Schwei\u00dfn\u00e4hte<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#5_Brittleness_and_Impact_Sensitivity\" >5. Spr\u00f6digkeit und Schlagempfindlichkeit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#Long-Term_Health_and_Safety_Risks\" >Langfristige Gesundheits- und Sicherheitsrisiken<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/#How_DESO_Ensures_Material_Integrity\" >Wie DESO die Materialintegrit\u00e4t sicherstellt<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">Minderwertiger Recyclingkunststoff in PPR-Rohrsystemen \u00e4u\u00dfert sich durch f\u00fcnf Warnzeichen: Oberfl\u00e4chenfehler, Farbunterschiede, stechender Geruch beim Schwei\u00dfen, instabiles Schmelzverhalten und Spr\u00f6digkeit. Werden diese Anzeichen vor der Installation erkannt, lassen sich Verbindungsfehler, Wandrisse und Verunreinigungen vermeiden, deren Behebung deutlich teurer ist als deren Vermeidung.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Surface_Defects_and_Texture_Problems\"><\/span><strong>1. Oberfl\u00e4chenfehler und Texturprobleme<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Neuwertiges Polypropylen-Random-Copolymer ergibt Rohre mit glatten, gleichm\u00e4\u00dfigen Innen- und Au\u00dfenw\u00e4nden. Recyclingmaterial \u00e4u\u00dfert sich in sichtbaren M\u00e4ngeln.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Achten Sie auf Unebenheiten, Blasen oder raue Stellen an der Innen- und Au\u00dfenfl\u00e4che. Diese Unregelm\u00e4\u00dfigkeiten entstehen durch ungleichm\u00e4\u00dfiges Rohmaterial oder Verunreinigungen aus dem Extrusionsprozess. Ein hochwertiges Rohr weist keine mit blo\u00dfem Auge sichtbaren Oberfl\u00e4chenfehler auf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fahren Sie, wenn m\u00f6glich, mit der Hand an der Innenwand entlang. Rauheit f\u00fchrt zu turbulenter Str\u00f6mung, Ablagerungen und verringert mit der Zeit die hydraulische Effizienz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Color_Inconsistency_and_Lack_of_Luster\"><\/span><strong>2. Farbungleichm\u00e4\u00dfigkeit und fehlender Glanz<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Neuwertiges PPR-Rohrmaterial weist eine gleichm\u00e4\u00dfige Farbe auf. Die Oberfl\u00e4che zeigt einen gleichm\u00e4\u00dfigen Glanz ohne Streifen oder matte Stellen.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"727\" height=\"439\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials.webp\" alt=\"\" class=\"wp-image-4094\" style=\"width:350px\" srcset=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials.webp 727w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-500x302.webp 500w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-300x181.webp 300w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-18x12.webp 18w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-124x75.webp 124w, https:\/\/www.desopipe.com\/wp-content\/uploads\/2026\/02\/Detecting-Counterfeit-Materials-480x290.webp 480w\" sizes=\"auto, (max-width:767px) 480px, 727px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Recycelter PP-Kunststoff weist h\u00e4ufig folgende Merkmale auf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Farbstreifen durch gemischte Rohstoffchargen<\/li>\n\n\n\n<li>Dunkle Flecken durch Restverunreinigungen<\/li>\n\n\n\n<li>Ungleichm\u00e4\u00dfige Opazit\u00e4t \u00fcber die gesamte Rohrl\u00e4nge<\/li>\n\n\n\n<li>Kreidiges oder verblasstes Aussehen im Vergleich zu neuem Material<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Zeichen deuten eher auf gemischte Abfallstr\u00f6me als auf eine kontrollierte Produktion von Neuware-Harz hin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Pungent_Odor_During_Heating\"><\/span><strong>3. Stechender Geruch beim Erhitzen<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Beim Erhitzen von PPR zum Schmelzschwei\u00dfen entsteht bei Neuware nur minimaler Geruch. Recyceltes Material hingegen verstr\u00f6mt einen deutlichen, unangenehmen Geruch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dieser Geruch stammt von abgebauten Polymerketten, Resten von Verarbeitungszus\u00e4tzen und Verunreinigungen aus dem urspr\u00fcnglichen Abwasserstrom. Riecht das Rohr w\u00e4hrend des Schwei\u00dfens unangenehm, ist der Schmelzflussindex ungleichm\u00e4\u00dfig und die Schwei\u00dfverbindungen bilden sich nicht richtig.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die gleichen Verunreinigungen, die Ger\u00fcche verursachen, k\u00f6nnen in das Trinkwasser gelangen und dabei Pestizide, Schwermetalle oder Industriechemikalien aus dem recycelten Ausgangsmaterial mit sich f\u00fchren.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Unstable_Melting_and_Weak_Welds\"><\/span><strong>4. Instabiles Schmelzen und schwache Schwei\u00dfn\u00e4hte<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die statistische Copolymerstruktur von neuem PPR ist f\u00fcr gleichm\u00e4\u00dfiges Schmelzschwei\u00dfen optimiert. Recycelte Materialien k\u00f6nnen diese Leistung nicht erreichen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Recycelte Mischungen weisen uneinheitliche Schmelzflussindizes (MFI) auf, da sich verschiedene Kunststoffsorten und Verunreinigungen unvorhersehbar vermischen. Beim Schmelzen verh\u00e4lt sich das Material ungleichm\u00e4\u00dfig; einige Bereiche flie\u00dfen zu schnell, w\u00e4hrend andere sich nur schwer verbinden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Verunreinigungen wie Metallpartikel oder Fasern wirken als Spannungskonzentrationspunkte in der Schwei\u00dfzone. Anstelle einer nahtlosen molekularen Verbindung weist die Schwei\u00dfnaht Schwachstellen auf, die unter Druckwechselbeanspruchung versagen. <a href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/common-ppr-pipe-problems-and-effective-solutions\/\" target=\"_blank\" rel=\"noreferrer noopener\">Probleme mit PPR-Rohren<\/a> Die Ursache liegt oft eher in diesen fehlerhaften Schwei\u00dfn\u00e4hten als in den Rohrw\u00e4nden selbst.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Brittleness_and_Impact_Sensitivity\"><\/span><strong>5. Spr\u00f6digkeit und Schlagempfindlichkeit<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Reines PPR beh\u00e4lt seine Duktilit\u00e4t und Schlagfestigkeit \u00fcber die gesamte Lebensdauer. Rohre mit Recyclinganteil werden spr\u00f6de.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Schlagfestigkeit von Recyclingmaterialien sinkt im Vergleich zu Neuware um bis zu 351 TP9T. Rohre k\u00f6nnen beim Transport, bei der Installation oder durch geringf\u00fcgige Bodenbewegungen nach dem Verlegen rei\u00dfen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Best\u00e4ndigkeit gegen\u00fcber Hitze und Chemikalien nimmt ebenfalls ab. Recycelte Materialien zersetzen sich in Umgebungen mit hohen Temperaturen schneller, was zu rascher Verformung oder zum Bersten unter Bedingungen f\u00fchrt, denen neues PPR jahrzehntelang standh\u00e4lt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Long-Term_Health_and_Safety_Risks\"><\/span><strong>Langfristige Gesundheits- und Sicherheitsrisiken<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Die Verwendung von recyceltem Kunststoff in Drucksystemen verst\u00f6\u00dft gegen internationale Normen wie ISO 4427-2, da das Material weder in puncto Haltbarkeit noch Reinheit mit neuem Kunststoff mithalten kann.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Giftige Substanzen aus den urspr\u00fcnglichen Abfallstr\u00f6men (Pestizide, Schwermetalle, industrielle L\u00f6sungsmittel) wandern in <a href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/why-ppr-is-the-superior-food-grade-pipe-choice\/\" target=\"_blank\" rel=\"noreferrer noopener\">Trinkwasser <\/a>Mit der Zeit altert das Rohr. Anfangs mag das Rohr dem Druck standhalten, doch im Laufe der Jahre sammeln sich Verunreinigungen an.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bei Trinkwassersystemen \u00fcberwiegt das Gesundheitsrisiko die anf\u00e4nglichen Kosteneinsparungen.<\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  \n  <title>Hero-Produkthighlight<\/title>\n  <style>\n    .hero-card {\n      display: flex;\n      flex-wrap: wrap;\n      align-items: center;\n      background: #f7f8fa;\n      border-radius: 16px;\n      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n      padding: 24px;\n      max-width: 900px;\n      margin: 40px auto;\n      font-family: Arial, sans-serif;\n      text-decoration: none;\n      color: inherit;\n font-family: 'Poppins';\n    }\n\n    .hero-image {\n      width: 220px;\n      height: auto;\n      border-radius: 12px;\n      object-fit: cover;\n      flex-shrink: 0;\n    }\n\n    .hero-content {\n      padding-left: 24px;\n      flex: 1;\n      min-width: 260px;\n    }\n\n    .hero-title {\n      font-size: 1.6rem;\n      font-weight: bold;\n      margin-bottom: 12px;\n      color: #222;\n      font-family: 'Poppins',\n    }\n\n    .hero-description {\n      font-size: 1rem;\n      color: #555;\n      margin-bottom: 18px;\n    }\n\n    .hero-link {\n      display: inline-block;\n      padding: 10px 20px;\n      background-color: #0066cc;\n      color: #fff;\n      text-decoration: none;\n      border-radius: 8px;\n      font-weight: bold;\n      transition: background 0.2s ease-in-out;\n    }\n\n    .hero-link:hover {\n      background-color: #004c99;\n    }\n\n    @media (max-width: 640px) {\n      .hero-card {\n        flex-direction: column;\n        text-align: center;\n      }\n\n      .hero-content {\n        padding-left: 0;\n        padding-top: 20px;\n      }\n\n      .hero-image {\n        width: 100%;\n        max-width: 280px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.desopipe.com\/de\/product\/standard-ppr-pipe\/\" target=\"_blank\">\n  <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/www.desopipe.com\/wp-content\/uploads\/2025\/01\/4.webp\" alt=\"Kaywin Farbstift\">\n  <div class=\"hero-content\">\n    <div class=\"hero-title\">Standard-PPR-Rohr<\/div>\n    <div class=\"hero-description\">Standard-PPR-Rohre bieten eine zuverl\u00e4ssige L\u00f6sung f\u00fcr Rohrleitungssysteme im Wohn-, Gewerbe- und Industriebereich.<\/div>\n    <span class=\"hero-link\">Produkt ansehen<\/span>\n  <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_DESO_Ensures_Material_Integrity\"><\/span><strong>Wie DESO die Materialintegrit\u00e4t sicherstellt<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hersteller, die auf die Verwendung von Neuware bestehen, priorisieren in der Regel die Langlebigkeit und Sicherheit des Systems gegen\u00fcber kurzfristigen Kosteneinsparungen. DESO arbeitet nach diesem Prinzip.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jedes PPR-Rohr von DESO verwendet <a href=\"https:\/\/www.desopipe.com\/de\/blog\/manufacturer\/buyers-guide-to-high-quality-ppr-pipe-material\/\" target=\"_blank\" rel=\"noreferrer noopener\">100% Neuware<\/a> Von Borealis und Hyosung. Keine Recyclingmaterialien, keine gemischten Rohstoffe, kein Kontaminationsrisiko.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Konstanter Schmelzflussindex f\u00fcr zuverl\u00e4ssige <a href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-welding-hot-fusion-guide\/\" target=\"_blank\" rel=\"noreferrer noopener\">Schmelzschwei\u00dfen<\/a><\/li>\n\n\n\n<li>Vollst\u00e4ndige Chemikalien- und Hitzebest\u00e4ndigkeit \u00fcber eine Lebensdauer von mehr als 50 Jahren<\/li>\n\n\n\n<li>Einhaltung von <a href=\"https:\/\/www.desopipe.com\/de\/certificate\/\" target=\"_blank\" rel=\"noreferrer noopener\">ISO 15874<\/a> und internationale Sicherheitsstandards<\/li>\n\n\n\n<li>Keine molekulare Degradation oder Spr\u00f6dbruch im Laufe der Zeit<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Die schnellste Methode, Qualit\u00e4tshersteller von solchen zu unterscheiden, die Recyclingmaterial beimischen, um Kosten zu sparen, besteht darin, Lieferanten nach Garantien f\u00fcr Neuware zu fragen.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.desopipe.com\/de\/contact\/\" style=\"background-color:#0588a7\" target=\"_blank\" rel=\"noreferrer noopener\">Kostenloses Angebot einholen<\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Low-quality recycled plastic in PPR Pipe systems shows up through five warning signs: surface defects, color inconsistency, pungent odor during welding, unstable melting behavior, and brittleness.<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":4095,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[56],"tags":[],"class_list":["post-4092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ppr-pipe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PPR Pipe: 5 Signs of Low-Quality Recycled Plastic | DESO Group<\/title>\n<meta name=\"description\" content=\"Learn how to spot counterfeit PPR materials before installation. Identify surface defects, odor, weld problems, and brittleness in recycled plastic.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.desopipe.com\/de\/blog\/ppr-pipe\/ppr-pipe-low-quality-recycled-plastic-signs\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PPR Pipe: 5 Signs of Low-Quality Recycled Plastic | DESO Group\" \/>\n<meta property=\"og:description\" content=\"Learn how to spot counterfeit PPR materials before installation. 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