{"id":2317,"date":"2026-05-21T11:45:58","date_gmt":"2026-05-21T03:45:58","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2317"},"modified":"2026-06-30T17:14:41","modified_gmt":"2026-06-30T09:14:41","slug":"polyamide-pa-nylon","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/materials\/polyamide-pa-nylon\/","title":{"rendered":"Polyamide (PA\/Nylon)"},"content":{"rendered":"
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Comprehensive Polyamide (PA\/Nylon) Grades We Mold<\/h2>\n

We process high-strength Polyamide resins from world-renowned producers, supporting both ductile unreinforced and highly rigid glass-filled structural parts:<\/p>\n\n\n\n\n\n\n\n
PA Material Class<\/th>\nTypical Brand & Grade<\/th>\nKey Characteristics & Advantages<\/th>\n<\/tr>\n<\/thead>\n
Unreinforced PA6 \/ PA66<\/td>\n\u2022 DuPont Zytel 101L \/ 103FHS
\n\u2022 BASF Ultramid B3S (PA6) \/ A3K (PA66)
\n\u2022 Solvay Technyl A 216<\/td>\n		High toughness, self-lubricating sliding properties, exceptional wear resistance, and damping capacity. Ideal for functional gears, bearings, cable ties, and pulleys.<\/td>\n<\/tr>\n
Glass-Filled Reinforced<\/td>\n\u2022 DuPont Zytel 70G13L (13% GF) \/ 70G33L (33% GF)
\n\u2022 BASF Ultramid A3EG6 (30% GF PA66)
\n\u2022 DSM Akulon K224-G6 (30% GF PA6)<\/td>\n		Extremely high tensile strength, high modulus, outstanding creep resistance, and heat deflection temperatures up to 250\u00b0C. Ideal for automotive manifolds, structural brackets, and power tool housings.<\/td>\n<\/tr>\n
PA12 & Specialty Nylon<\/td>\n\u2022 Arkema Rilsamid AMNO (PA12)
\n\u2022 Evonik Vestamid L1600 (PA12)
\n\u2022 EMS-GRIVORY Grivory GV-5H<\/td>\n		Extremely low moisture absorption, superior dimensional stability, chemical inertness, and high impact toughness even at low temperatures. Suited for medical tubes, precision gears, and automotive fuel lines.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Applicable Molding Processes for Polyamide (PA)<\/h2>\n

Nylon’s robust mechanical properties make it highly adaptable to advanced injection molding configurations:<\/p>\n\n\n\n\n\n\n\n
Molding Process<\/th>\nProcess Suitability & Application<\/th>\n<\/tr>\n<\/thead>\n
Standard Injection Molding<\/td>\nExcellent. Highly suitable for structural gears, mechanical components, sliding pulleys, and terminal blocks.<\/td>\n<\/tr>\n
Insert Molding<\/td>\nExcellent. Nylon’s high structural toughness makes it the gold standard for encapsulating metal brass threaded inserts, bolts, and metal frames.<\/td>\n<\/tr>\n
Overmolding \/ Multi-Shot<\/td>\nGood. Often used as the rigid nylon base substrate and overmolded with compatible soft TPE\/TPU formulations to form heavy-duty tool handles.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Polyamide (PA\/Nylon) Injection Molding Manufacturing Guide<\/h2>\n

Nylon is highly hygroscopic and highly crystalline. Failure to control moisture or thermal crystallization parameters will lead to surface splay and mechanical degradation:<\/p>\n

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  • Pre-Drying:<\/strong> Nylon absorbs atmospheric moisture aggressively. Moisture levels must be kept below 0.20% (ideally <0.10% for structural parts) to prevent polymer chain degradation. Dry in desiccant dryers at 80\u00b0C\u2013100\u00b0C (176\u00b0F to 212\u00b0F) for 4\u20136 hours.<\/li>\n
  • \u7194\u81a0\u6eab\u5ea6\uff1a<\/strong> Processed between 230\u00b0C and 280\u00b0C (446\u00b0F to 536\u00b0F) for PA6, and 260\u00b0C to 300\u00b0C (500\u00b0F to 572\u00b0F) for PA66. Exceeding 310\u00b0C will result in polymer thermal decomposition.<\/li>\n
  • \u6a21\u5177\u6eab\u5ea6\uff1a<\/strong> Managed between 60\u00b0C and 100\u00b0C (140\u00b0F to 212\u00b0F). For glass-filled grades, mold temperatures up to 120\u00b0C are recommended to prevent glass fibers from floating to the surface, ensuring a smooth and glossy finish.<\/li>\n
  • Shrinkage Calculation:<\/strong> Nylon’s shrinkage is high and anisotropic (1.0% to 2.5% for unreinforced grades, reducing to 0.3% to 0.8% with 30% glass filling). Tooling designs must be strictly optimized for each specific grade.<\/li>\n
  • Post-Molding Moisture Conditioning:<\/strong> Nylon components absorb ambient moisture post-molding, which increases toughness but slightly swells dimensions. Our engineers calculate this dimensional variance beforehand to ensure end-use accuracy.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Industries for Molded Nylon Components<\/h2>\n
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    • Automotive Powertrains (IATF 16949 Certified):<\/strong> Engine covers, cylinder head covers, radiator water chambers, intake manifolds, air intake grills, and oil pans.<\/li>\n
    • Industrial & Mechanical Transmission:<\/strong> Heavy-duty spur gears, worm gears, sliding bearings, pulleys, conveyor tracks, and heavy-duty structural washers.<\/li>\n
    • Electrical & Electronic Housings:<\/strong> Connector blocks, DIN-rail housings, terminal blocks, electrical switches, and heavy-duty power tool casings.<\/li>\n
    • Medical Devices (ISO 13485 Compliant):<\/strong> Wear-resistant surgical clips, diagnostic valve bodies, catheter connectors, and disposable fluid delivery casings (often utilizing PA12).<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Comprehensive Polyamide (PA\/Nylon) Grades We Mold We process high-strength Polyamide resins from world-renowned producers, supporting both ductile unreinforced and highly rigid glass-filled structural parts: PA Material Class Typical Brand & Grade Key Characteristics & Advantages Unreinforced PA6 \/ PA66 \u2022 DuPont Zytel 101L \/ 103FHS \u2022 BASF Ultramid B3S (PA6) \/ A3K (PA66) \u2022 Solvay […]<\/p>\n","protected":false},"featured_media":2401,"template":"","meta":[],"material_type":[21],"application_feature":[],"machining_process":[],"class_list":["post-2317","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-engineering-plastics"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material\/2317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media\/2401"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/media?parent=2317"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/material_type?post=2317"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/application_feature?post=2317"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh_hk\/wp-json\/wp\/v2\/machining_process?post=2317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}