{"id":2537,"date":"2026-06-15T16:24:07","date_gmt":"2026-06-15T08:24:07","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2537"},"modified":"2026-06-29T17:24:14","modified_gmt":"2026-06-29T09:24:14","slug":"lcp-toray-siveras-lx70g35","status":"publish","type":"material_model","link":"https:\/\/www.jcinjectionmolding.com\/vi\/materials\/liquid-crystal-polymer-lcp\/lcp-toray-siveras-lx70g35\/","title":{"rendered":"LCP-Toray Siveras LX70G35"},"content":{"rendered":"
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Siveras LX70G35 High-Toughness & Low-Outgassing Profile<\/h2>\n

SIVERAS\u00ae LX70G35 is a tough, low-outgassing liquid crystal polyester (LCP) resin engineered by Toray, designed to deliver exceptional mechanical strength, stiffness, and vibration absorption properties:<\/p>\n\n\n\n\n\n\n\n
Physical & Structural Property<\/th>\nSiveras LX70G35 Tested Spec<\/th>\nMolding & Electronics Advantage<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ed9 c\u1ee9ng k\u1ebft c\u1ea5u<\/td>\nFlex Modulus 16,000 MPa \/ Strength 175 MPa<\/td>\nDelivers metal-like stiffness and high flexural strength, preventing part deformation during dynamic automated multi-pin windings.<\/td>\n<\/tr>\n
Extremely Low Outgassing<\/td>\nPatented Ultra-Low Volatiles Package<\/td>\nMinimizes volatile gas outgassing during high-temp runs, preventing metal-contact corrosion in microelectronic relays.<\/td>\n<\/tr>\n
Subzero Unnotched Impact<\/td>\nTough & High Vibration Absorption<\/td>\nMaintains exceptional mechanical toughness and vibration absorption under dynamic high load, preventing structural fatigue.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Structural Component Process Configurations for Siveras LX70G35<\/h2>\n

With its ultra-low melt viscosity and high self-reinforcing crystallinity, Siveras LX70G35 processes consistently inside precision cavities:<\/p>\n\n\n\n\n\n\n\n
Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd<\/th>\nKh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0110\u00fac & Chi ti\u1ebft V\u1eadn h\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n
High-Density Board-to-Board Sockets<\/td>\nExcellent. The primary process for Siveras LX70G35. Optimized for multi-cavity, ultra-thin-walled connector grids with wall thicknesses down to 0.15mm.<\/td>\n<\/tr>\n
Precision SMT Micro-Coils<\/td>\nExcellent. High toughness and low outgassing prevent dynamic structural warping, making it ideal for micro-helical coil bobbins and relays.<\/td>\n<\/tr>\n
Low-Gas Industrial Housings<\/td>\nGood. High specific modulus, low outgassing, and excellent high-temperature creep resistance prevent structural distortion in camera module carriers.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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LCP-Toray Siveras LX70G35 Fast-Crystallization Guide<\/h2>\n

Molding an ultra-high heat resistant, 35% glass-fiber reinforced LCP like Siveras LX70G35 requires precise gating, extreme thermal limits, and advanced venting to prevent outgassing:<\/p>\n

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Micron-Level Flash Control (Tooling Precision)<\/p>\n

Because Siveras LX70G35 exhibits extreme flowability (low viscosity) and rapid crystallization speed during peak standard molding at 360\u00b0C, molten resin can seep easily into minor mold gaps, causing parting line flash. Jucheng\u2019s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks.<\/p>\n<\/div>\n

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Ki\u1ec3m so\u00e1t co ng\u00f3t kh\u00f4ng \u0111\u1eb3ng h\u01b0\u1edbng v\u00e0 cong v\u00eanh<\/p>\n

Siveras LX70G35 shrinks much less along the flow (0.05%) than perpendicular to it (0.55%). 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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Mold Temperature Control (Surface Quality)<\/p>\n

We maintain mold temperatures at 80\u00b0C\u2013120\u00b0C using pressurized oil temperature controllers. High mold temperatures maximize surface gloss, reduce weld lines, and prevent surface glass-fibers from floating, ensuring a smooth and non-fibrous finish.<\/p>\n<\/div>\n

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Pre-Drying & Outgassing Venting<\/p>\n

We dry raw resin in desiccant hopper dryers at 130\u00b0C (266\u00b0F) for 5 hours. This eliminates surface splay and prevents weld-line micro-voids, keeping internal moisture strictly below 0.01%. Precise venting slots (0.015mm depth) are cut along parting lines to exhaust gas during high-melt runs.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Key Application Fields for LCP-Toray Siveras LX70G35<\/h2>\n
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  • High-Density Telecommunication & 5G Hardware:<\/strong> Fine-pitch board-to-board (B2B) connectors, USB Type-C sockets, SIM card slots, CPU sockets, camera module frames, and microelectronics.<\/li>\n
  • Automotive Powertrains & Sensors (IATF 16949):<\/strong> Ignition coil housings, transmission sensors, powertrain control modules, LED lamp sockets, and electric water pump sensors.<\/li>\n
  • Medical Instruments (ISO 13485 Compliant):<\/strong> Minimally invasive surgical tips, high-end medical connectors, diagnostic cartridge bobbins, and catheter components requiring SMT soldering.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Siveras LX70G35 High-Toughness & Low-Outgassing Profile SIVERAS\u00ae LX70G35 is a tough, low-outgassing liquid crystal polyester (LCP) resin engineered by Toray, designed to deliver exceptional mechanical strength, stiffness, and vibration absorption properties: Physical & Structural Property Siveras LX70G35 Tested Spec Molding & Electronics Advantage Structural Rigidity Flex Modulus 16,000 MPa \/ Strength 175 MPa Delivers metal-like […]<\/p>\n","protected":false},"featured_media":2503,"template":"","meta":[],"class_list":["post-2537","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\/2537","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\/2503"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/vi\/wp-json\/wp\/v2\/media?parent=2537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}