{"id":2456,"date":"2026-05-29T17:22:35","date_gmt":"2026-05-29T09:22:35","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2456"},"modified":"2026-06-29T14:21:58","modified_gmt":"2026-06-29T06:21:58","slug":"pbt-sabic-valox-420","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/polybutylene-terephthalate-pbt\/pbt-sabic-valox-420\/","title":{"rendered":"PBT-Sabic Valox 420"},"content":{"rendered":"
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Valox 420 Mechanical Modulus & Thermal Tolerance Grid<\/h2>\n

VALOX\u2122 Resin 420 is a 30% glass fiber reinforced, un-lubricated semi-crystalline PBT injection molding grade, certified to deliver outstanding strength, stiffness, and heat resistance under ASTM\/ISO standards:<\/p>\n\n\n\n\n\n\n\n
Mechanical \/ Thermal Metric<\/th>\nTypical Value (ASTM\/ISO)<\/th>\nComponent Design Benefit<\/th>\n<\/tr>\n<\/thead>\n
Tensile Strength at Break<\/td>\n119 MPa (ASTM D638)<\/td>\nProvides immense structural load-bearing capacity, substituting die-cast metal brackets and casings with lighter weight.<\/td>\n<\/tr>\n
M\u00f4 \u0111un u\u1ed1n<\/td>\n7,580 MPa (ASTM D790)<\/td>\nDelivers high-stiffness, unbending structural integrity for electric motor casings, spotlights, and dynamic pump impellers.<\/td>\n<\/tr>\n
Nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t (HDT)<\/td>\n207 \u00b0C (DAM @ 1.82 MPa)<\/td>\nRetains mechanical properties and shape under continuous thermal load in high-heat engine environments (HDT 215\u00b0C at 0.45 MPa).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Heavy-Duty Process & Alignment Suitability for Valox 420<\/h2>\n

With its rapid crystallization and low melt viscosity of the base PBT, Valox 420 fills complex structural cavities consistently:<\/p>\n\n\n\n\n\n\n\n
Quy tr\u00ecnh \u0111\u00fac<\/th>\nGrade Adaptation & Engineering Focus<\/th>\n<\/tr>\n<\/thead>\n
Precision Connector Assemblies<\/td>\nExcellent. Highly suitable for multi-pin automotive electrical blocks, sensor plugs, high-voltage terminals, and heavy-duty coil housings.<\/td>\n<\/tr>\n
Electric Motor & Bobbin Components<\/td>\nExcellent. High tensile modulus prevents part deflection under tight copper winding tension on multi-slot bobbins and end bells.<\/td>\n<\/tr>\n
Dynamic Spotlight Enclosures<\/td>\nExcellent. High continuous heat resistance and dimensional integrity are ideal for molding lighting reflectors, spotlight housings, and appliance handles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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PBT-SABIC Valox 420 Tooling & Fiber Orientation Blueprint<\/h2>\n

Molding a 30% glass-fiber filled semi-crystalline resin like Valox 420 requires strict moisture control and optimized gating to prevent abrasive tool wear and warpage:<\/p>\n

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Controlling Abrasive Tool Wear<\/p>\n

30% short glass fibers act as an abrasive sanding 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.<\/p>\n<\/div>\n

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Managing Anisotropic Shrinkage<\/p>\n

Valox 420 shrinks much less along the flow (0.30%\u20130.50%) than perpendicular to it (0.40%\u20130.80%). 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<\/div>\n<\/section>\n

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Key Application Fields for PBT-Sabic Valox 420<\/h2>\n
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  • H\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng \u00f4 t\u00f4 & Chi\u1ebfu s\u00e1ng (IATF 16949):<\/strong> \u0110\u1ea7u n\u1ed1i pin xe \u0111i\u1ec7n cao \u00e1p, \u1ed1ng ch\u1ec9 cu\u1ed9n d\u00e2y \u0111\u00e1nh l\u1eeda, v\u1ecf c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9, c\u1ee5m vi\u1ec1n \u0111\u00e8n pha v\u00e0 v\u1ecf b\u01a1m n\u01b0\u1edbc \u0111i\u1ec7n.<\/li>\n
  • Electrical Components & Motors:<\/strong> Heavy-duty industrial relays, terminal blocks, electric motor end bells, smart-meter connector grids, and coil bobbins.<\/li>\n
  • Industrial Appliances & Lighting:<\/strong> Tay c\u1ea7m thi\u1ebft b\u1ecb h\u1ea1ng n\u1eb7ng, v\u1ecf \u0111\u00e8n pha ngo\u00e0i tr\u1eddi, vi\u1ec1n \u0111\u1ed3ng h\u1ed3 nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 v\u1ecf van h\u00f3a ch\u1ea5t k\u1ebft c\u1ea5u.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Valox 420 Mechanical Modulus & Thermal Tolerance Grid VALOX\u2122 Resin 420 is a 30% glass fiber reinforced, un-lubricated semi-crystalline PBT injection molding grade, certified to deliver outstanding strength, stiffness, and heat resistance under ASTM\/ISO standards: Mechanical \/ Thermal Metric Typical Value (ASTM\/ISO) Component Design Benefit Tensile Strength at Break 119 MPa (ASTM D638) Provides immense […]<\/p>\n","protected":false},"featured_media":2457,"template":"","meta":[],"class_list":["post-2456","material_model","type-material_model","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model\/2456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/material_model"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/types\/material_model"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media\/2457"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}