{"id":2809,"date":"2026-07-31T17:11:52","date_gmt":"2026-07-31T09:11:52","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2809"},"modified":"2026-07-31T17:18:10","modified_gmt":"2026-07-31T09:18:10","slug":"pvc-polyvinyl-chloride","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/de\/materials\/pvc-polyvinyl-chloride\/","title":{"rendered":"PVC (Polyvinylchlorid)"},"content":{"rendered":"
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Rigid & Flexible PVC Material Grades We Mold<\/h2>\n

We process both Rigid (uPVC) and Flexible (pPVC) vinyl compounds from global chemical compounders, tailored for structural, chemical, and medical applications:<\/p>\n\n\n\n\n\n\n\n
PVC Polymer Class<\/th>\nTypische Marke & Sorte<\/th>\nHauptmerkmale & Vorteile<\/th>\n<\/tr>\n<\/thead>\n
Rigid PVC (uPVC)<\/td>\n\u2022 Westlake PVC Rigid Compound
\n\u2022 Formosa PVC Suspension Grades<\/td>\n		High mechanical stiffness, outstanding chemical resistance to acids and alkalis, and inherent flame retardancy (UL 94 V-0). Ideal for municipal pipe fittings, valve bodies, and electrical junction boxes.<\/td>\n<\/tr>\n
Flexible PVC (pPVC)<\/td>\n\u2022 Teknor Apex Apex PVC
\n\u2022 Alphagary Evoprene Flexible<\/td>\n		Plasticized formulation providing rubber-like flexibility, high elongation, and low cost. Specified for flexible grommets, cable relief boots, soft seals, and protective caps.<\/td>\n<\/tr>\n
Medical Clear PVC<\/td>\n\u2022 Colorite Medical PVC Compounds
\n\u2022 Westlake Healthcare Compounds<\/td>\n		USP Class VI and ISO 10993 certified. High optical transparency, gamma\/EtO sterilization stability, and non-toxic. Used for fluid drip chambers, IV connectors, and catheter valves.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Applicable Molding Processes for Polyvinyl Chloride (PVC)<\/h2>\n

PVC’s unique melt shear sensitivity and thermal degradation window demand specialized processing architectures:<\/p>\n\n\n\n\n\n\n\n
Spritzgussverfahren<\/th>\nProzesseignung & Anwendungsdetails<\/th>\n<\/tr>\n<\/thead>\n
Standard-Spritzguss<\/td>\nExcellent. Configured with specialized chrome-plated or stainless screws to mold rigid uPVC plumbing elbows, tees, and valve bodies.<\/td>\n<\/tr>\n
Insert-Spritzguss<\/td>\nExcellent. Allows seamless encapsulation of brass threaded inserts or steel bolts directly into rigid PVC electrical junction boxes and valve housings.<\/td>\n<\/tr>\n
Multi-Shot \/ Overmolding<\/td>\nGood. Flexible PVC is often overmolded over rigid ABS, PC, or rigid PVC structures to create soft sealing lips and ergonomic hand grips.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Polyvinyl Chloride (PVC) Manufacturing & Processing Guide<\/h2>\n

PVC is thermally sensitive and prone to releasing corrosive hydrochloric acid (HCl) gas if overheated or subjected to high shear. Strict technical execution is required:<\/p>\n

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  • Thermal Degradation Control:<\/strong> Barrel processing temperatures must be strictly managed within a narrow window between 160\u00b0C and 190\u00b0C (320\u00b0F to 374\u00b0F). Melt temperatures exceeding 200\u00b0C will trigger polymer chain degradation, generating corrosive HCl gas and part discoloration.<\/li>\n
  • Corrosion-Resistant Screw & Barrel Metallurgy:<\/strong> To resist acid corrosion, Jucheng uses bimetallic barrels, chrome-plated screws, and stainless steel mold inserts (S136 or M340 hardened to 48\u201352 HRC) on all PVC production lines.<\/li>\n
  • Low-Shear Tooling & Gate Sizing:<\/strong> PVC melts exhibit high viscosity and shear sensitivity. We design wide, rounded runners and generous gates (minimum 60% of part wall thickness) to prevent localized shear heating and surface burn marks.<\/li>\n
  • Shrinkage Variance:<\/strong> Rigid uPVC exhibits low mold shrinkage (0.2% to 0.6%), while Flexible pPVC exhibits higher, elasticity-dependent shrinkage (1.0% to 2.5%). Our tooling division scales mold cavities precisely using 5-axis CNC machining to guarantee exact part geometry.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Industries for PVC Molded Parts<\/h2>\n
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    • Medical Devices & Biotech (ISO 13485 Compliant):<\/strong> Clear IV drip chambers, fluid connectors, blood tubing connectors, catheter valves, and oxygen mask fittings.<\/li>\n
    • Municipal Plumbing & Construction:<\/strong> Rigid uPVC pipe elbows, couplings, T-joints, ball valves, drain fittings, and conduit junction boxes.<\/li>\n
    • Electrical & Consumer Hardware:<\/strong> Cable strain-relief boots, electrical wire terminal covers, soft-touch tool grips, and protective sealing grommets.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Rigid & Flexible PVC Material Grades We Mold We process both Rigid (uPVC) and Flexible (pPVC) vinyl compounds from global chemical compounders, tailored for structural, chemical, and medical applications: PVC Polymer Class Typical Brand & Grade Key Characteristics & Advantages Rigid PVC (uPVC) \u2022 Westlake PVC Rigid Compound \u2022 Formosa PVC Suspension Grades High mechanical […]<\/p>\n","protected":false},"featured_media":2810,"template":"","meta":[],"material_type":[22],"application_feature":[],"machining_process":[],"class_list":["post-2809","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-commodity-plastics"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/material\/2809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media\/2810"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/media?parent=2809"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/material_type?post=2809"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/application_feature?post=2809"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/de\/wp-json\/wp\/v2\/machining_process?post=2809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}