{"id":2460,"date":"2026-05-29T17:41:26","date_gmt":"2026-05-29T09:41:26","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2460"},"modified":"2026-06-29T14:31:36","modified_gmt":"2026-06-29T06:31:36","slug":"pbt-dupont-crastin-sk605","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/ar\/materials\/polybutylene-terephthalate-pbt\/pbt-dupont-crastin-sk605\/","title":{"rendered":"PBT-DuPont Crastin SK605"},"content":{"rendered":"
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<\/p>\n

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Crastin SK605 Mechanical Strength & Electrical Insulation Profile<\/h2>\n

Crastin\u00ae SK605 NC010 is a 30% glass fiber reinforced, lubricated polybutylene terephthalate resin engineered by Celanese (formerly DuPont) to deliver exceptional strength, stiffness, and high arc resistance:<\/p>\n\n\n\n\n\n\n\n
Mechanical \/ Electrical Metrics<\/th>\nTypical Value (ISO Standard)<\/th>\n\u0645\u064a\u0632\u0629 \u0627\u0644\u0642\u0648\u0644\u0628\u0629 \u0648\u0627\u0644\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0646\u0647\u0627\u0626\u064a<\/th>\n<\/tr>\n<\/thead>\n
\u0635\u0644\u0627\u0628\u0629 \u0627\u0644\u0634\u062f<\/td>\nTensile Modulus 10,000 MPa \/ Strength 140 MPa<\/td>\nProvides exceptional, metal-like structural rigidity, replacing die-cast zinc or aluminum brackets in automotive interiors.<\/td>\n<\/tr>\n
Electrical Isolation<\/td>\nDielectric Strength 20 kV\/mm (at 2mm)<\/td>\nOutstanding insulation resistance and arc-tracking resistance, preventing voltage leaks in high-voltage EV connectors.<\/td>\n<\/tr>\n
Processing Flow<\/td>\nMVR 7.0 cm\u00b3\/10min (MFR 10 g\/10min)<\/td>\nEasy-release lubricated matrix ensures smooth, rapid flow and clean, automatic ejection on high-speed automated runs.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Structural Component Process Configurations for Crastin SK605<\/h2>\n

With its high-stiffness reinforcement and lubricated chemistry, Crastin SK605 is highly optimized for complex dynamic components:<\/p>\n\n\n\n\n\n\n\n
\u0641\u0626\u0629 \u0627\u0644\u0639\u0645\u0644\u064a\u0629<\/th>\n\u062a\u0648\u0627\u0641\u0642 \u0627\u0644\u0642\u0648\u0644\u0628\u0629 \u0648\u062a\u0641\u0627\u0635\u064a\u0644 \u0625\u0639\u062f\u0627\u062f \u0627\u0644\u0639\u0645\u0644\u064a\u0629<\/th>\n<\/tr>\n<\/thead>\n
\u0645\u0648\u0635\u0644\u0627\u062a \u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u062f\u0642\u064a\u0642\u0629<\/td>\nExcellent. Fully optimized for automotive engine block sensor plugs, high-density multi-pin connectors, and dynamic relay housings.<\/td>\n<\/tr>\n
\u91cd\u578b\u7ed5\u7ec4\u548c\u7ebf\u5708\u9aa8\u67b6<\/td>\nExcellent. High tensile modulus prevents part deformation or deflection under high copper wire tension on multi-slot bobbins.<\/td>\n<\/tr>\n
\u062a\u0634\u0637\u064a\u0628\u0627\u062a \u0623\u062c\u0647\u0632\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0645\u0627\u0644\u064a\u0629<\/td>\nGood. Easy-release lubricants combined with optimized tooling result in premium surface finishes with minimized glass fiber visibility.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PBT-DuPont Crastin SK605 Mold Engineering Blueprint<\/h2>\n

Molding an un-lubricated crystalline composite like Crastin SK605 requires strict moisture control and optimized gating to prevent abrasive tool wear and warpage:<\/p>\n

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\u0623\u062f\u0648\u0627\u062a S136 \u0627\u0644\u0645\u0635\u0644\u062f\u0629 (\u0645\u0646\u0639 \u0627\u0644\u062a\u0622\u0643\u0644 \u0627\u0644\u0643\u0627\u0634\u0637)<\/p>\n

30% glass fibers act as an abrasive medium under high injection speeds. Jucheng\u2019s tooling division prevents cavity erosion by constructing molds with premium S136 stainless tool steel hardened to 48\u201352 HRC and machined on our 5-axis CNCs, ensuring long-term parting line precision and flash-free components.<\/p>\n<\/div>\n

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\u0627\u0644\u062a\u062d\u0643\u0645 \u0641\u064a \u0627\u0644\u0627\u0646\u0643\u0645\u0627\u0634 \u0648\u0627\u0644\u0627\u0644\u062a\u0648\u0627\u0621 \u0645\u062a\u0628\u0627\u064a\u0646 \u0627\u0644\u062e\u0648\u0627\u0635<\/p>\n

Crastin SK605 shrinks much less along the flow (0.30%) than perpendicular to it (1.10%). We use Moldflow simulation during our free DFM review to balance gate locations, aligning glass fibers uniformly to prevent component warping and out-of-tolerance dimensions.<\/p>\n<\/div>\n

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\u0628\u0631\u0648\u062a\u0648\u0643\u0648\u0644 \u0627\u0644\u062a\u062c\u0641\u064a\u0641 \u0628\u0627\u0644\u0645\u0632\u064a\u0644\u0627\u062a (\u0645\u0646\u0639 \u0627\u0644\u062a\u062d\u0644\u0644 \u0627\u0644\u0645\u0627\u0626\u064a)<\/p>\n

PBT is highly sensitive to moisture at high melt temperatures. Wet molding results in rapid hydrolytic chain cleavage, causing severe splay, gas bubbles, and a major drop in impact strength. We desiccant dry Crastin SK605 resin at 120\u00b0C (248\u00b0F) for 3\u20134 hours, keeping moisture below 0.04%.<\/p>\n<\/div>\n

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Balanced Cooling Loops<\/p>\n

\u0644\u0645\u0646\u0639 \u0627\u0644\u0627\u0644\u062a\u0648\u0627\u0621 \u0641\u064a \u0627\u0644\u0625\u0637\u0627\u0631\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0627\u0644\u0645\u0639\u0642\u062f\u0629\u060c \u0646\u0642\u0648\u0645 \u0628\u062a\u0634\u063a\u064a\u0644 \u062f\u0648\u0627\u0626\u0631 \u062a\u0628\u0631\u064a\u062f \u0645\u0637\u0627\u0628\u0642\u0629 \u0648\u0645\u062a\u0648\u0627\u0632\u0646\u0629 \u0645\u0628\u0627\u0634\u0631\u0629 \u0641\u064a \u0643\u062a\u0644 \u0627\u0644\u0642\u0644\u0628 \u0644\u062a\u0633\u0631\u064a\u0639 \u062a\u0628\u062f\u064a\u062f \u0627\u0644\u062d\u0631\u0627\u0631\u0629\u060c \u0645\u0645\u0627 \u064a\u0642\u0644\u0644 \u0623\u064a\u0636\u064b\u0627 \u0645\u0646 \u0623\u0648\u0642\u0627\u062a \u0627\u0644\u062f\u0648\u0631\u0629 \u0648\u064a\u0645\u0646\u0639 \u0627\u0644\u0627\u0644\u062a\u0648\u0627\u0621 \u0627\u0644\u062d\u0631\u0627\u0631\u064a.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

<\/p>\n

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Key Application Fields for PBT-DuPont Crastin SK605<\/h2>\n
    \n
  • \u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0648\u0645\u062c\u0645\u0648\u0639\u0627\u062a \u0646\u0642\u0644 \u0627\u0644\u062d\u0631\u0643\u0629 (IATF 16949):<\/strong> High-voltage EV connectors, ignition coil bobbins, throttle sensor housings, headlamp bezel assemblies, and electric water pump housings.<\/li>\n
  • \u0627\u0644\u0645\u0643\u0648\u0646\u0627\u062a \u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629 \u0648\u0627\u0644\u0634\u0628\u0643\u0627\u062a \u0627\u0644\u0630\u0643\u064a\u0629:<\/strong> \u0642\u0648\u0627\u0637\u0639 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629\u060c \u0645\u0642\u0627\u0628\u0633 \u0627\u0644\u0645\u0631\u062d\u0644\u0627\u062a \u0627\u0644\u062b\u0642\u064a\u0644\u0629\u060c \u0643\u062a\u0644 \u0627\u0644\u0623\u0637\u0631\u0627\u0641\u060c \u0639\u062f\u0627\u062f\u0627\u062a \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0630\u0643\u064a\u0629\u060c \u0648\u0645\u0643\u0628\u0627\u062a \u0627\u0644\u0645\u0644\u0641\u0627\u062a.<\/li>\n
  • Consumer Electronics & Appliances:<\/strong> Heavy-duty appliance handles, outdoor spotlight housings, high-temperature indicator bezels, and structural chemical valve housings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Crastin SK605 Mechanical Strength & Electrical Insulation Profile Crastin\u00ae SK605 NC010 is a 30% glass fiber reinforced, lubricated polybutylene terephthalate resin engineered by Celanese (formerly DuPont) to deliver exceptional strength, stiffness, and high arc resistance: Mechanical \/ Electrical Metrics Typical Value (ISO Standard) Molding & End-Use Advantage Tensile Stiffness Tensile Modulus 10,000 MPa \/ Strength […]<\/p>\n","protected":false},"featured_media":2461,"template":"","meta":[],"class_list":["post-2460","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/ar\/wp-json\/wp\/v2\/material_model\/2460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/ar\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/ar\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/ar\/wp-json\/wp\/v2\/media\/2461"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/ar\/wp-json\/wp\/v2\/media?parent=2460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}