{"id":20965,"date":"2025-02-10T10:15:19","date_gmt":"2025-02-10T02:15:19","guid":{"rendered":"https:\/\/ifanplus.com\/?p=20965"},"modified":"2025-02-10T10:15:22","modified_gmt":"2025-02-10T02:15:22","slug":"resistencia-a-corrosao-de-tubos-de-pe","status":"publish","type":"post","link":"https:\/\/ifanplus.com\/pt\/conhecimento\/resistencia-a-corrosao-de-tubos-de-pe\/","title":{"rendered":"Resist\u00eancia \u00e0 corros\u00e3o de tubos de PE"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Os tubos de polietileno (PE) oferecem excelente resist\u00eancia \u00e0 corros\u00e3o, tornando-os ideais para o transporte de \u00e1gua, produtos qu\u00edmicos e gases em diversos setores. Ao contr\u00e1rio dos tubos de metal, os tubos de PE n\u00e3o enferrujam, degradam ou corroem quando expostos a ambientes agressivos. Sua natureza n\u00e3o reativa permite que mantenham a integridade estrutural e o desempenho por longos per\u00edodos. Engenheiros, empreiteiros e fabricantes os escolhem porque garantem durabilidade e confiabilidade em condi\u00e7\u00f5es corrosivas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-chemical-composition-and-structure\">1. Composi\u00e7\u00e3o Qu\u00edmica e Estrutura<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ifanplus.com\/pt\/product-category\/industria-do-plastico\/pead\/\">Tubos de PE<\/a> Cont\u00e9m polietileno, um pol\u00edmero termopl\u00e1stico composto por longas cadeias de hidrocarbonetos. A estrutura molecular do polietileno cria um material apolar e quimicamente est\u00e1vel que resiste a rea\u00e7\u00f5es com a maioria dos \u00e1cidos, bases e sais. Os fabricantes produzem tubos de PE utilizando diferentes t\u00e9cnicas de polimeriza\u00e7\u00e3o, resultando em v\u00e1rios tipos, como polietileno de baixa densidade (PEBD), polietileno linear de baixa densidade (PEBDL), polietileno de m\u00e9dia densidade (PEMD) e polietileno de alta densidade (PEAD).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cada tipo de PE apresenta propriedades espec\u00edficas. O PEBD e o PEBDL oferecem maior flexibilidade, enquanto o PEAD proporciona maior resist\u00eancia e rigidez. O PEBD equilibra flexibilidade e resist\u00eancia, tornando-o ideal para aplica\u00e7\u00f5es sob press\u00e3o. Apesar dessas diferen\u00e7as, todos os tubos de PE compartilham forte resist\u00eancia \u00e0 corros\u00e3o qu\u00edmica, tornando-os adequados para ambientes industriais severos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-resistance-to-acidic-and-alkaline-substances\">2. Resist\u00eancia a subst\u00e2ncias \u00e1cidas e alcalinas<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tubos de PE resistem \u00e0 degrada\u00e7\u00e3o quando expostos a solu\u00e7\u00f5es \u00e1cidas e alcalinas. Muitas ind\u00fastrias utilizam tubos de PE para transporte de produtos qu\u00edmicos e gest\u00e3o de \u00e1guas residuais, pois n\u00e3o reagem com \u00e1cidos fortes, como \u00e1cido sulf\u00farico, \u00e1cido clor\u00eddrico e \u00e1cido n\u00edtrico. Mesmo em altas concentra\u00e7\u00f5es, essas subst\u00e2ncias n\u00e3o degradam o material de PE.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Subst\u00e2ncias alcalinas, incluindo hidr\u00f3xido de s\u00f3dio e hidr\u00f3xido de pot\u00e1ssio, tamb\u00e9m n\u00e3o enfraquecem os tubos de PE. Sua estrutura molecular apolar impede a liga\u00e7\u00e3o qu\u00edmica com essas subst\u00e2ncias reativas, garantindo longevidade em aplica\u00e7\u00f5es industriais. Essa caracter\u00edstica torna os tubos de PE uma excelente escolha para sistemas de esgoto, plantas qu\u00edmicas e opera\u00e7\u00f5es de minera\u00e7\u00e3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-resistance-to-oxidation-and-electrochemical-corrosion\">3. Resist\u00eancia \u00e0 oxida\u00e7\u00e3o e corros\u00e3o eletroqu\u00edmica<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ao contr\u00e1rio dos tubos de metal, os tubos de PE n\u00e3o sofrem rea\u00e7\u00f5es eletroqu\u00edmicas que levam \u00e0 ferrugem e \u00e0 oxida\u00e7\u00e3o. Os sistemas tradicionais de tubula\u00e7\u00e3o met\u00e1lica corroem com o tempo devido \u00e0 exposi\u00e7\u00e3o \u00e0 umidade e ao oxig\u00eanio. Esse processo enfraquece os tubos de metal e causa vazamentos, contamina\u00e7\u00e3o e altos custos de manuten\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE eliminam esses problemas, oferecendo total resist\u00eancia \u00e0 oxida\u00e7\u00e3o. N\u00e3o requerem revestimentos, inibidores ou prote\u00e7\u00e3o cat\u00f3dica adicionais para evitar a ferrugem. Sua estabilidade molecular garante que mantenham a resist\u00eancia e a flexibilidade mesmo ap\u00f3s exposi\u00e7\u00e3o prolongada a ambientes ricos em oxig\u00eanio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-resistance-to-saltwater-and-marine-environments\">4. Resist\u00eancia a ambientes marinhos e de \u00e1gua salgada<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A \u00e1gua salgada acelera o processo de corros\u00e3o em tubula\u00e7\u00f5es met\u00e1licas, levando \u00e0 falha estrutural e contamina\u00e7\u00e3o. Os tubos de PE oferecem uma solu\u00e7\u00e3o livre de corros\u00e3o para aplica\u00e7\u00f5es mar\u00edtimas e costeiras. O material n\u00e3o absorve nem reage com o sal, garantindo confiabilidade em usinas de dessaliniza\u00e7\u00e3o, plataformas de petr\u00f3leo offshore e oleodutos submarinos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE tamb\u00e9m suportam exposi\u00e7\u00e3o cont\u00ednua \u00e0 umidade. Mesmo em ambientes de alta salinidade, mant\u00eam suas propriedades originais sem degrada\u00e7\u00e3o. Essa durabilidade reduz os custos de manuten\u00e7\u00e3o e garante desempenho de longo prazo em aplica\u00e7\u00f5es mar\u00edtimas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-resistance-to-microbial-and-biological-corrosion\">5. Resist\u00eancia \u00e0 corros\u00e3o microbiana e biol\u00f3gica<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bact\u00e9rias, fungos e algas contribuem para a deteriora\u00e7\u00e3o de tubula\u00e7\u00f5es met\u00e1licas, produzindo subprodutos corrosivos. Em esta\u00e7\u00f5es de tratamento de \u00e1guas residuais e sistemas de processamento industrial, a corros\u00e3o induzida por micr\u00f3bios (MIC) causa danos graves \u00e0 infraestrutura de tubula\u00e7\u00f5es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE eliminam esse problema ao resistir ao crescimento microbiano. Sua superf\u00edcie lisa e n\u00e3o porosa impede a ader\u00eancia de bact\u00e9rias e a forma\u00e7\u00e3o de biofilmes. Ao contr\u00e1rio dos tubos de metal, que desenvolvem cavidades e pontos de corros\u00e3o, os tubos de PE mant\u00eam uma superf\u00edcie limpa e sem contamina\u00e7\u00e3o. Essa propriedade os torna ideais para distribui\u00e7\u00e3o de \u00e1gua pot\u00e1vel, processamento de alimentos e aplica\u00e7\u00f5es farmac\u00eauticas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-6-resistance-to-solvents-and-hydrocarbons\">6. Resist\u00eancia a solventes e hidrocarbonetos<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE demonstram forte resist\u00eancia a diversos solventes org\u00e2nicos e hidrocarbonetos. Muitos processos industriais envolvem o transporte de combust\u00edveis, \u00f3leos e solventes qu\u00edmicos que degradam os materiais tradicionais de tubula\u00e7\u00e3o. Eles suportam a exposi\u00e7\u00e3o \u00e0 gasolina, diesel, lubrificantes e solventes industriais sem inchar, rachar ou perder a integridade estrutural.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sua resist\u00eancia a hidrocarbonetos os torna adequados para armazenamento de combust\u00edvel, processamento petroqu\u00edmico e dutos subterr\u00e2neos. Engenheiros preferem tubos de PE para aplica\u00e7\u00f5es que exigem contato com produtos qu\u00edmicos agressivos, garantindo um transporte seguro e sem vazamentos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-7-long-term-stability-in-corrosive-environments\">7. Estabilidade de longo prazo em ambientes corrosivos<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE mant\u00eam suas propriedades por d\u00e9cadas, mesmo em ambientes altamente corrosivos. Sua resist\u00eancia a ataques qu\u00edmicos, oxida\u00e7\u00e3o e degrada\u00e7\u00e3o microbiana garante uma vida \u00fatil mais longa do que as alternativas met\u00e1licas. Em sistemas municipais de \u00e1gua, redes de distribui\u00e7\u00e3o de g\u00e1s e instala\u00e7\u00f5es industriais, os tubos de PE superam os materiais tradicionais em termos de durabilidade e custos de manuten\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Varia\u00e7\u00f5es de temperatura, flutua\u00e7\u00f5es de press\u00e3o e exposi\u00e7\u00e3o ambiental n\u00e3o enfraquecem os tubos de PE. Sua estabilidade molecular previne rachaduras, incrusta\u00e7\u00f5es e fragiliza\u00e7\u00e3o, garantindo funcionalidade a longo prazo. Ao contr\u00e1rio dos tubos de metal, que exigem inspe\u00e7\u00f5es e substitui\u00e7\u00f5es frequentes, os tubos de PE oferecem desempenho confi\u00e1vel com manuten\u00e7\u00e3o m\u00ednima.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-8-applications-in-corrosive-environments\">8. Aplica\u00e7\u00f5es em ambientes corrosivos<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Muitas ind\u00fastrias se beneficiam de suas propriedades de resist\u00eancia \u00e0 corros\u00e3o. Sua capacidade de suportar condi\u00e7\u00f5es adversas os torna a escolha preferida para as seguintes aplica\u00e7\u00f5es:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sistemas de Abastecimento de \u00c1gua<\/strong>: Tubos de PE transportam \u00e1gua pot\u00e1vel sem contamina\u00e7\u00e3o. Sua natureza n\u00e3o reativa previne lixivia\u00e7\u00e3o e corros\u00e3o.<\/li>\n\n\n\n<li><strong>Plantas de Processamento Qu\u00edmico<\/strong>: As ind\u00fastrias os utilizam para transportar \u00e1cidos, bases e solventes com seguran\u00e7a.<\/li>\n\n\n\n<li><strong>Sistemas de esgoto e drenagem<\/strong>:As esta\u00e7\u00f5es de tratamento de \u00e1guas residuais dependem deles por sua resist\u00eancia a ataques microbianos e qu\u00edmicos.<\/li>\n\n\n\n<li><strong>Distribui\u00e7\u00e3o de G\u00e1s<\/strong>: Os tubos de PE transportam com seguran\u00e7a g\u00e1s natural e outros combust\u00edveis sem vazamentos relacionados \u00e0 corros\u00e3o.<\/li>\n\n\n\n<li><strong>Instala\u00e7\u00f5es Mar\u00edtimas e Offshore<\/strong>: A resist\u00eancia \u00e0 \u00e1gua salgada torna os tubos de PE ideais para tubula\u00e7\u00f5es subaqu\u00e1ticas e infraestrutura costeira.<\/li>\n\n\n\n<li><strong>Agricultura e Irriga\u00e7\u00e3o<\/strong>:Os agricultores usam tubos de PE para fornecer fertilizantes e produtos qu\u00edmicos sem degrada\u00e7\u00e3o.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-9-comparison-with-other-piping-materials\">9. Compara\u00e7\u00e3o com outros materiais de tubula\u00e7\u00e3o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tubos de PE superam tubos de metal, concreto e PVC em ambientes corrosivos. Uma compara\u00e7\u00e3o com outros materiais destaca suas vantagens:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tubos de metal<\/strong>: Tubos de a\u00e7o, ferro e cobre corroem com o tempo, exigindo revestimentos ou inibidores. Eles eliminam problemas de corros\u00e3o e reduzem os custos de manuten\u00e7\u00e3o.<\/li>\n\n\n\n<li><strong>Tubos de concreto<\/strong>: \u00c1guas residuais \u00e1cidas degradam tubula\u00e7\u00f5es de concreto, causando falhas estruturais. Os tubos de PE resistem ao ataque \u00e1cido e duram mais.<\/li>\n\n\n\n<li><strong>Tubos de PVC<\/strong>: Embora o PVC ofere\u00e7a alguma resist\u00eancia qu\u00edmica, ele se torna quebradi\u00e7o com o tempo. Mant\u00e9m a flexibilidade e a resist\u00eancia ao impacto em condi\u00e7\u00f5es extremas.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-10-environmental-benefits-of-corrosion-resistance\">10. Benef\u00edcios ambientais da resist\u00eancia \u00e0 corros\u00e3o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A resist\u00eancia \u00e0 corros\u00e3o contribui para a sustentabilidade ambiental, reduzindo o desperd\u00edcio de materiais e o consumo de recursos. Tubos met\u00e1licos exigem substitui\u00e7\u00f5es frequentes, aumentando a demanda por energia e mat\u00e9ria-prima. Eles prolongam a vida \u00fatil da infraestrutura, reduzindo o impacto ambiental da fabrica\u00e7\u00e3o e do descarte.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE tamb\u00e9m previnem vazamentos e contamina\u00e7\u00e3o, garantindo \u00e1gua limpa e transporte seguro de produtos qu\u00edmicos. Sua durabilidade reduz falhas em tubula\u00e7\u00f5es, minimizando o risco de danos ambientais causados por derramamentos perigosos. A capacidade de reciclar o material de PE aumenta ainda mais a sustentabilidade, tornando-o uma solu\u00e7\u00e3o de tubula\u00e7\u00e3o ecologicamente correta.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-11-advances-in-pe-tube-technology\">11. Avan\u00e7os na tecnologia de tubos de PE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os fabricantes continuam aprimorando-os, aumentando sua resist\u00eancia \u00e0 corros\u00e3o. As inova\u00e7\u00f5es incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>PE reticulado (PEX)<\/strong>: Maior resist\u00eancia \u00e0 temperatura e \u00e0 press\u00e3o para aplica\u00e7\u00f5es de alta demanda.<\/li>\n\n\n\n<li><strong>PE estabilizado por UV<\/strong>: Maior durabilidade para ambientes externos e expostos.<\/li>\n\n\n\n<li><strong>Tubos de PE multicamadas<\/strong>: Resist\u00eancia qu\u00edmica aprimorada para ind\u00fastrias especializadas.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Esses avan\u00e7os expandem o uso deles em condi\u00e7\u00f5es ainda mais corrosivas, fornecendo \u00e0s ind\u00fastrias solu\u00e7\u00f5es confi\u00e1veis e duradouras.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE oferecem resist\u00eancia incompar\u00e1vel \u00e0 corros\u00e3o, tornando-os a escolha preferida para ind\u00fastrias que exigem solu\u00e7\u00f5es de tubula\u00e7\u00e3o dur\u00e1veis e confi\u00e1veis. Sua resist\u00eancia a \u00e1cidos, bases, sais, oxida\u00e7\u00e3o e crescimento microbiano garante desempenho a longo prazo sem degrada\u00e7\u00e3o. Ao contr\u00e1rio dos tubos de metal, eles n\u00e3o enferrujam, n\u00e3o enfraquecem nem requerem revestimentos protetores. Sua capacidade de suportar produtos qu\u00edmicos agressivos, hidrocarbonetos e exposi\u00e7\u00e3o ambiental os torna ideais para abastecimento de \u00e1gua, processamento qu\u00edmico, distribui\u00e7\u00e3o de g\u00e1s e aplica\u00e7\u00f5es mar\u00edtimas. Engenheiros e ind\u00fastrias continuam a confiar neles por sua excepcional durabilidade, custo-benef\u00edcio e sustentabilidade.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-ifan-international-standard\">Norma internacional IFAN<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Os tubos de PE da IFAN atendem a diversas normas internacionais, garantindo alta qualidade e confiabilidade. Essas normas incluem ASTM D3035 e ASTM D3350 para tubos de polietileno na Am\u00e9rica do Norte, bem como as s\u00e9ries ISO 4427 e EN 12201, que definem crit\u00e9rios de desempenho para aplica\u00e7\u00f5es de abastecimento de \u00e1gua. Al\u00e9m disso, a norma DIN 8074\/8075 define especifica\u00e7\u00f5es para o mercado alem\u00e3o, enquanto a norma GB\/T 13663 se aplica \u00e0s normas nacionais da China. A IFAN tamb\u00e9m atende \u00e0s normas AS\/NZS 4130 para Austr\u00e1lia e Nova Zel\u00e2ndia, JIS K6760 para o Jap\u00e3o, BS 6572 para aplica\u00e7\u00f5es brit\u00e2nicas e CSA B137.1 para o Canad\u00e1. Essas certifica\u00e7\u00f5es demonstram o compromisso da IFAN com a conformidade global e o desempenho superior dos produtos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-contact\">Contato<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A IFAN \u00e9 uma fabricante profissional com 30 anos de experi\u00eancia, dedicada \u00e0 produ\u00e7\u00e3o de tubos, conex\u00f5es e v\u00e1lvulas de pl\u00e1stico de alta qualidade. Nossos produtos incluem v\u00e1lvulas de lat\u00e3o, v\u00e1lvulas de PPR, al\u00e9m de diversos tubos e conex\u00f5es para atender \u00e0s diferentes necessidades dos clientes. Seja para tubos de encanamento e drenagem ou v\u00e1lvulas, a IFAN oferece uma gama diversificada de produtos de alta qualidade e custo-benef\u00edcio para apoiar seus projetos. Abaixo, voc\u00ea encontra nossos dados de contato.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Responderemos seu e-mail ou fax em at\u00e9 24 horas.<br>Voc\u00ea pode nos ligar a qualquer momento caso tenha alguma d\u00favida sobre nossa produ\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para mais informa\u00e7\u00f5es, visite nosso site&nbsp;<a href=\"https:\/\/ifanplus.com\/pt\">https:\/\/www.ifanplus.com\/<\/a><br>Por favor, envie um e-mail para:&nbsp;<a href=\"mailto:jack@ifangroup.com\">jack@ifangroup.com<\/a><br><a href=\"https:\/\/api.whatsapp.com\/send?phone=https:\/\/api.whatsapp.com\/send?l=en&amp;phone=8619857948982\">Whatsapp: + 86 19857948982<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Polyethylene (PE) tubes provide excellent corrosion resistance, making them ideal for transporting water, chemicals, and gases in various industries. Unlike metal pipes, PE tubes do not rust, degrade, or corrode when exposed to harsh environments. Their non-reactive nature allows them to maintain structural integrity and performance over long periods. Engineers, contractors, and manufacturers choose them [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20966,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[13],"tags":[256,253,357,306,255],"class_list":["post-20965","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-hdpe","tag-hdpe-pipe","tag-hdpe-pipeline","tag-hdpe-piping","tag-hdpe-tube"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v27.7) - 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