{"title":"Polyimide(PI)","description":"\u003ch2\u003ePolyimide (PI) — DuPont Vespel® Series\u003c\/h2\u003e\n\u003cp\u003ePolyimide (PI) is one of the highest-performing organic engineering polymers — rated for continuous use from −269°C to +300°C with no melting point. The \u003cstrong\u003eDuPont Vespel®\u003c\/strong\u003e brand is the industry gold standard for extreme-environment PI components in aerospace, semiconductor, and defense applications.\u003c\/p\u003e\n\u003ch3\u003eVespel® Grade Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP-1 (yellow-brown):\u003c\/strong\u003e Unfilled — highest mechanical strength and electrical insulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP-21 (black):\u003c\/strong\u003e 15% graphite — excellent wear and heat resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP-211 (black):\u003c\/strong\u003e 15% graphite + 10% PTFE — lowest static friction coefficient\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP-22 (black):\u003c\/strong\u003e 40% graphite — minimum thermal expansion, maximum creep resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP-3 (black):\u003c\/strong\u003e 15% molybdenum disulfide — for vacuum and inert gas friction applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Properties\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eService temperature: −269°C to +300°C (short-term: +400°C)\u003c\/li\u003e\n\u003cli\u003eZero melting point — does not melt, only degrades at extreme temperatures\u003c\/li\u003e\n\u003cli\u003eRadiation resistant — nuclear, X-ray, gamma\u003c\/li\u003e\n\u003cli\u003eExcellent dimensional stability and creep resistance\u003c\/li\u003e\n\u003cli\u003eOutstanding machinability for precision components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eAerospace thrust washers and bushings · Semiconductor process chamber parts · Vacuum equipment seals and insulators · Rocket engine components · Cryogenic instruments\u003c\/p\u003e","products":[{"product_id":"polyimidepi-vespel®-sp-1-rod-medium-length","title":"DuPont Vespel® SP-1 Polyimide Rod  — Medium Length | PI High-Temperature Bar Stock","description":"\u003cdiv data-docx-has-block-data=\"false\" data-lark-html-role=\"root\" data-page-id=\"X9LzfTVGVd3WhtcXvGvc9pksn5d\"\u003e\n\u003ch3 class=\"heading-2 ace-line old-record-id-SYU7fYi7Sd9wMhczjhbcbLEnnjg\"\u003eDetailed Introduction of Vespel® SP-1\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GmhyfumfHdpuFSc1DkBcdpXAnmd\"\u003eVespel® SP-1 is a high-performance unfilled polyimide (PI) molding compound produced by DuPont, a benchmark material in the field of high-temperature resistant engineering plastics. As a semi-crystalline PI material, it exhibits exceptional comprehensive properties, making it ideal for extreme environment applications where reliability and durability are critical.\u003c\/div\u003e\n\u003ch4 class=\"ace-line ace-line old-record-id-OPxffHg98daoxmc67vjcpAM8noc\"\u003eCore Properties:\u003c\/h4\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: Continuous operating temperature up to 260°C (500°F), short-term use temperature up to 482°C (900°F). It maintains excellent toughness even at cryogenic temperatures as low as -269°C (-452°F), with a glass transition temperature of 143°C and a melting point of 385°C.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: Boasts superior mechanical properties among unfilled PI materials, with high tensile strength, excellent impact resistance (notched Izod impact strength: 12 kJ\/m²), and outstanding creep resistance and fatigue resistance, ensuring long-term stable performance under static and dynamic loads. Electrical Insulation: Exceptional dielectric properties, with a dielectric constant of 3.5 (1 MHz), dielectric strength of 20 kV\/mm, and low dielectric loss (tanδ = 0.002 at 1 MHz), making it an excellent electrical insulation material for high-frequency and high-voltage applications.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: Resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, suitable for long-term use in corrosive environments. \u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/span\u003eOther\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e\u003cspan class=\"lark-record-clipboard\" data-lark-record-format=\"docx\/text\" data-lark-record-data='{\"rootId\":\"X9LzfTVGVd3WhtcXvGvc9pksn5d\",\"text\":{\"initialAttributedTexts\":{\"text\":{\"0\":\"Other\"},\"attribs\":{\"0\":\"*0+5\"}},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"3537605091668267\"]},\"nextNum\":1}},\"type\":\"text\",\"referenceRecordMap\":{},\"extra\":{\"channel\":\"saas\",\"pasteRandomId\":\"5f64ac8a-9c92-41dc-9e24-c84f5b5d1d98\",\"mention_page_title\":{},\"external_mention_url\":{}},\"isKeepQuoteContainer\":false,\"isFromCode\":false,\"selection\":[{\"id\":16,\"type\":\"text\",\"selection\":{\"start\":1144,\"end\":1149},\"recordId\":\"NVN3fYu7KdmRtCcnhNoc9H3YnHf\"}],\"payloadMap\":{},\"isCut\":false}'\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAdvantages: Complies with FDA food contact standards and biocompatibility requirements for certain medical applications. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes, and can be machined into precision components with stable dimensional accuracy.\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSGmfTHntdNDshcFSdTcbH3unzQ\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Aerospace structural components, high-temperature electrical insulation parts (such as motor slot insulation, high-voltage cable sheathing), semiconductor equipment components, medical devices that require repeated sterilization, food processing machinery parts, and high-precision mechanical components in extreme environments.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47661537558745,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/Vespel_SP-1_dfc86f07-9fb5-4445-9cd2-9bc5633ca408.png?v=1768320995"},{"product_id":"polyimidepi-vespel®-sp-1-rod-large-length","title":"DuPont Vespel® SP-1 Polyimide Rod  — Full Length | PI High-Temperature Bar Stock","description":"\u003ch3 class=\"heading-2 ace-line old-record-id-SYU7fYi7Sd9wMhczjhbcbLEnnjg\"\u003eDetailed Introduction of Vespel® SP-1\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GmhyfumfHdpuFSc1DkBcdpXAnmd\"\u003eVespel® SP-1 is a high-performance unfilled polyimide (PI) molding compound produced by DuPont, a benchmark material in the field of high-temperature resistant engineering plastics. As a semi-crystalline PI material, it exhibits exceptional comprehensive properties, making it ideal for extreme environment applications where reliability and durability are critical.\u003c\/div\u003e\n\u003ch4 class=\"ace-line ace-line old-record-id-OPxffHg98daoxmc67vjcpAM8noc\"\u003eCore Properties:\u003c\/h4\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: Continuous operating temperature up to 260°C (500°F), short-term use temperature up to 482°C (900°F). It maintains excellent toughness even at cryogenic temperatures as low as -269°C (-452°F), with a glass transition temperature of 143°C and a melting point of 385°C.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: Boasts superior mechanical properties among unfilled PI materials, with high tensile strength, excellent impact resistance (notched Izod impact strength: 12 kJ\/m²), and outstanding creep resistance and fatigue resistance, ensuring long-term stable performance under static and dynamic loads. Electrical Insulation: Exceptional dielectric properties, with a dielectric constant of 3.5 (1 MHz), dielectric strength of 20 kV\/mm, and low dielectric loss (tanδ = 0.002 at 1 MHz), making it an excellent electrical insulation material for high-frequency and high-voltage applications.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: Resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, suitable for long-term use in corrosive environments. \u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/span\u003eOther\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e\u003cspan class=\"lark-record-clipboard\" data-lark-record-format=\"docx\/text\" data-lark-record-data='{\"rootId\":\"X9LzfTVGVd3WhtcXvGvc9pksn5d\",\"text\":{\"initialAttributedTexts\":{\"text\":{\"0\":\"Other\"},\"attribs\":{\"0\":\"*0+5\"}},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"3537605091668267\"]},\"nextNum\":1}},\"type\":\"text\",\"referenceRecordMap\":{},\"extra\":{\"channel\":\"saas\",\"pasteRandomId\":\"5f64ac8a-9c92-41dc-9e24-c84f5b5d1d98\",\"mention_page_title\":{},\"external_mention_url\":{}},\"isKeepQuoteContainer\":false,\"isFromCode\":false,\"selection\":[{\"id\":16,\"type\":\"text\",\"selection\":{\"start\":1144,\"end\":1149},\"recordId\":\"NVN3fYu7KdmRtCcnhNoc9H3YnHf\"}],\"payloadMap\":{},\"isCut\":false}'\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAdvantages: Complies with FDA food contact standards and biocompatibility requirements for certain medical applications. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes, and can be machined into precision components with stable dimensional accuracy.\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSGmfTHntdNDshcFSdTcbH3unzQ\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Aerospace structural components, high-temperature electrical insulation parts (such as motor slot insulation, high-voltage cable sheathing), semiconductor equipment components, medical devices that require repeated sterilization, food processing machinery parts, and high-precision mechanical components in extreme environments.\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47662422065369,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/Vespel_SP-1_dfc86f07-9fb5-4445-9cd2-9bc5633ca408.png?v=1768320995"},{"product_id":"polyimidepi-vespel®-sp-1-rod-small-length","title":"DuPont Vespel® SP-1 Polyimide Rod  — Short Length | PI High-Temperature Bar Stock","description":"\u003ch3 class=\"heading-2 ace-line old-record-id-SYU7fYi7Sd9wMhczjhbcbLEnnjg\"\u003eDetailed Introduction of Vespel® SP-1\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GmhyfumfHdpuFSc1DkBcdpXAnmd\"\u003eVespel® SP-1 is a high-performance unfilled polyimide (PI) molding compound produced by DuPont, a benchmark material in the field of high-temperature resistant engineering plastics. As a semi-crystalline PI material, it exhibits exceptional comprehensive properties, making it ideal for extreme environment applications where reliability and durability are critical.\u003c\/div\u003e\n\u003ch4 class=\"ace-line ace-line old-record-id-OPxffHg98daoxmc67vjcpAM8noc\"\u003eCore Properties:\u003c\/h4\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: Continuous operating temperature up to 260°C (500°F), short-term use temperature up to 482°C (900°F). It maintains excellent toughness even at cryogenic temperatures as low as -269°C (-452°F), with a glass transition temperature of 143°C and a melting point of 385°C.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: Boasts superior mechanical properties among unfilled PI materials, with high tensile strength, excellent impact resistance (notched Izod impact strength: 12 kJ\/m²), and outstanding creep resistance and fatigue resistance, ensuring long-term stable performance under static and dynamic loads. Electrical Insulation: Exceptional dielectric properties, with a dielectric constant of 3.5 (1 MHz), dielectric strength of 20 kV\/mm, and low dielectric loss (tanδ = 0.002 at 1 MHz), making it an excellent electrical insulation material for high-frequency and high-voltage applications.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: Resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, suitable for long-term use in corrosive environments. \u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/span\u003eOther\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e\u003cspan data-lark-record-data='{\"rootId\":\"X9LzfTVGVd3WhtcXvGvc9pksn5d\",\"text\":{\"initialAttributedTexts\":{\"text\":{\"0\":\"Other\"},\"attribs\":{\"0\":\"*0+5\"}},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"3537605091668267\"]},\"nextNum\":1}},\"type\":\"text\",\"referenceRecordMap\":{},\"extra\":{\"channel\":\"saas\",\"pasteRandomId\":\"5f64ac8a-9c92-41dc-9e24-c84f5b5d1d98\",\"mention_page_title\":{},\"external_mention_url\":{}},\"isKeepQuoteContainer\":false,\"isFromCode\":false,\"selection\":[{\"id\":16,\"type\":\"text\",\"selection\":{\"start\":1144,\"end\":1149},\"recordId\":\"NVN3fYu7KdmRtCcnhNoc9H3YnHf\"}],\"payloadMap\":{},\"isCut\":false}' data-lark-record-format=\"docx\/text\" class=\"lark-record-clipboard\"\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAdvantages: Complies with FDA food contact standards and biocompatibility requirements for certain medical applications. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes, and can be machined into precision components with stable dimensional accuracy.\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSGmfTHntdNDshcFSdTcbH3unzQ\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Aerospace structural components, high-temperature electrical insulation parts (such as motor slot insulation, high-voltage cable sheathing), semiconductor equipment components, medical devices that require repeated sterilization, food processing machinery parts, and high-precision mechanical components in extreme environments.\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47662422098137,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/Vespel_SP-1_dfc86f07-9fb5-4445-9cd2-9bc5633ca408.png?v=1768320995"},{"product_id":"polyimidepi-vespel®-sp-1-plate-large-size","title":"DuPont Vespel® SP-1 Polyimide Sheet | PI High-Temperature Engineering Plastic-small size","description":"\u003ch3 class=\"heading-2 ace-line old-record-id-SYU7fYi7Sd9wMhczjhbcbLEnnjg\"\u003eDetailed Introduction of Vespel® SP-1\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GmhyfumfHdpuFSc1DkBcdpXAnmd\"\u003eVespel® SP-1 is a high-performance unfilled polyimide (PI) molding compound produced by DuPont, a benchmark material in the field of high-temperature resistant engineering plastics. As a semi-crystalline PI material, it exhibits exceptional comprehensive properties, making it ideal for extreme environment applications where reliability and durability are critical.\u003c\/div\u003e\n\u003ch4 class=\"ace-line ace-line old-record-id-OPxffHg98daoxmc67vjcpAM8noc\"\u003eCore Properties:\u003c\/h4\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: Continuous operating temperature up to 260°C (500°F), short-term use temperature up to 482°C (900°F). It maintains excellent toughness even at cryogenic temperatures as low as -269°C (-452°F), with a glass transition temperature of 143°C and a melting point of 385°C.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: Boasts superior mechanical properties among unfilled PI materials, with high tensile strength, excellent impact resistance (notched Izod impact strength: 12 kJ\/m²), and outstanding creep resistance and fatigue resistance, ensuring long-term stable performance under static and dynamic loads. Electrical Insulation: Exceptional dielectric properties, with a dielectric constant of 3.5 (1 MHz), dielectric strength of 20 kV\/mm, and low dielectric loss (tanδ = 0.002 at 1 MHz), making it an excellent electrical insulation material for high-frequency and high-voltage applications.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: Resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, suitable for long-term use in corrosive environments. \u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/span\u003eOther\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e\u003cspan class=\"lark-record-clipboard\" data-lark-record-format=\"docx\/text\" data-lark-record-data='{\"rootId\":\"X9LzfTVGVd3WhtcXvGvc9pksn5d\",\"text\":{\"initialAttributedTexts\":{\"text\":{\"0\":\"Other\"},\"attribs\":{\"0\":\"*0+5\"}},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"3537605091668267\"]},\"nextNum\":1}},\"type\":\"text\",\"referenceRecordMap\":{},\"extra\":{\"channel\":\"saas\",\"pasteRandomId\":\"5f64ac8a-9c92-41dc-9e24-c84f5b5d1d98\",\"mention_page_title\":{},\"external_mention_url\":{}},\"isKeepQuoteContainer\":false,\"isFromCode\":false,\"selection\":[{\"id\":16,\"type\":\"text\",\"selection\":{\"start\":1144,\"end\":1149},\"recordId\":\"NVN3fYu7KdmRtCcnhNoc9H3YnHf\"}],\"payloadMap\":{},\"isCut\":false}'\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAdvantages: Complies with FDA food contact standards and biocompatibility requirements for certain medical applications. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes, and can be machined into precision components with stable dimensional accuracy.\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSGmfTHntdNDshcFSdTcbH3unzQ\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Aerospace structural components, high-temperature electrical insulation parts (such as motor slot insulation, high-voltage cable sheathing), semiconductor equipment components, medical devices that require repeated sterilization, food processing machinery parts, and high-precision mechanical components in extreme environments.\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47664861905113,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/Vespel_SP-1_40ba460d-c42c-4b97-8967-70dabe0a4834.png?v=1768320994"},{"product_id":"polyimidepi-vespel®-sp-1","title":"DuPont Vespel® SP-1 Polyimide Sheet | PI High-Temperature Engineering Plastic-large size","description":"\u003ch3 class=\"heading-2 ace-line old-record-id-SYU7fYi7Sd9wMhczjhbcbLEnnjg\"\u003eDetailed Introduction of Vespel® SP-1\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GmhyfumfHdpuFSc1DkBcdpXAnmd\"\u003eVespel® SP-1 is a high-performance unfilled polyimide (PI) molding compound produced by DuPont, a benchmark material in the field of high-temperature resistant engineering plastics. As a semi-crystalline PI material, it exhibits exceptional comprehensive properties, making it ideal for extreme environment applications where reliability and durability are critical.\u003c\/div\u003e\n\u003ch4 class=\"ace-line ace-line old-record-id-OPxffHg98daoxmc67vjcpAM8noc\"\u003eCore Properties:\u003c\/h4\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: Continuous operating temperature up to 260°C (500°F), short-term use temperature up to 482°C (900°F). It maintains excellent toughness even at cryogenic temperatures as low as -269°C (-452°F), with a glass transition temperature of 143°C and a melting point of 385°C.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: Boasts superior mechanical properties among unfilled PI materials, with high tensile strength, excellent impact resistance (notched Izod impact strength: 12 kJ\/m²), and outstanding creep resistance and fatigue resistance, ensuring long-term stable performance under static and dynamic loads. Electrical Insulation: Exceptional dielectric properties, with a dielectric constant of 3.5 (1 MHz), dielectric strength of 20 kV\/mm, and low dielectric loss (tanδ = 0.002 at 1 MHz), making it an excellent electrical insulation material for high-frequency and high-voltage applications.\u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: Resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, suitable for long-term use in corrosive environments. \u003c\/p\u003e\n\u003cp class=\"ace-line ace-line old-record-id-NVN3fYu7KdmRtCcnhNoc9H3YnHf\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/span\u003eOther\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e\u003cspan data-lark-record-data='{\"rootId\":\"X9LzfTVGVd3WhtcXvGvc9pksn5d\",\"text\":{\"initialAttributedTexts\":{\"text\":{\"0\":\"Other\"},\"attribs\":{\"0\":\"*0+5\"}},\"apool\":{\"numToAttrib\":{\"0\":[\"author\",\"3537605091668267\"]},\"nextNum\":1}},\"type\":\"text\",\"referenceRecordMap\":{},\"extra\":{\"channel\":\"saas\",\"pasteRandomId\":\"5f64ac8a-9c92-41dc-9e24-c84f5b5d1d98\",\"mention_page_title\":{},\"external_mention_url\":{}},\"isKeepQuoteContainer\":false,\"isFromCode\":false,\"selection\":[{\"id\":16,\"type\":\"text\",\"selection\":{\"start\":1144,\"end\":1149},\"recordId\":\"NVN3fYu7KdmRtCcnhNoc9H3YnHf\"}],\"payloadMap\":{},\"isCut\":false}' data-lark-record-format=\"docx\/text\" class=\"lark-record-clipboard\"\u003e\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003eAdvantages: Complies with FDA food contact standards and biocompatibility requirements for certain medical applications. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes, and can be machined into precision components with stable dimensional accuracy.\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSGmfTHntdNDshcFSdTcbH3unzQ\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Aerospace structural components, high-temperature electrical insulation parts (such as motor slot insulation, high-voltage cable sheathing), semiconductor equipment components, medical devices that require repeated sterilization, food processing machinery parts, and high-precision mechanical components in extreme environments.\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47664861937881,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/Vespel_SP-1_40ba460d-c42c-4b97-8967-70dabe0a4834.png?v=1768320994"},{"product_id":"polyimidepi-vespel®-sp-21","title":"DuPont Vespel® SP-21 Polyimide Resin | 15% Graphite Grade PI","description":"\u003cdiv data-page-id=\"NRjFfuM9PdY9iocOfT8cGZ1BnJc\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"\u003e\n\u003ch3 class=\"heading-2 ace-line old-record-id-O3RKfRPyidMsHRcg4Npc49hHnVh\"\u003eDetailed Introduction of Vespel® SP-21\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-C08WfzRypdmqYccHlupc5plZn3c\"\u003eVespel® SP-21 is a high-performance graphite-filled polyimide (PI) molding compound manufactured by DuPont, specifically engineered for wear-resistant and high-temperature applications. As a modified PI material with 15% graphite filling, it combines the inherent excellent thermal and chemical resistance of PI with enhanced tribological properties, making it a preferred choice in various extreme industrial scenarios.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eCore Properties: Thermal Performance: It features a continuous operating temperature of up to 260°C (500°F) and can withstand short-term exposure to temperatures as high as 482°C (900°F). Even at cryogenic temperatures down to -269°C (-452°F), the material retains good toughness without brittle fracture. The glass transition temperature is 143°C, and the melting point reaches 385°C, ensuring stable performance under extreme temperature fluctuations.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTribological Properties: The addition of 15% graphite significantly reduces the friction coefficient to approximately 0.15-0.25, enhancing wear resistance and self-lubricating performance. This allows the material to operate stably in oil-free or low-lubrication environments, reducing maintenance costs and extending service life.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: It possesses excellent mechanical properties, including high tensile strength, good impact resistance (notched Izod impact strength: 8 kJ\/m²), and outstanding creep and fatigue resistance. These properties ensure long-term stable operation under static and dynamic loads.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eElectrical Insulation: As an insulating material, Vespel® SP-21 has excellent dielectric properties, with a dielectric constant of 3.8 (1 MHz), a dielectric strength of 18 kV\/mm, and a low dielectric loss (tanδ = 0.003 at 1 MHz), making it suitable for high-frequency and high-voltage electrical insulation applications.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: It is resistant to most acids, bases, organic solvents, aviation fuels, hydraulic oils, and other harsh chemical media. It also has excellent hydrolysis resistance and aging resistance, enabling long-term use in corrosive environments.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IjnBfuYH5dwtoHcx0vDchwxNnvF\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eOther Advantages: The material is black in appearance and complies with FDA food contact standards. It is a thermosetting material that requires isostatic pressing or direct forming (DF) processes and can be machined into precision components with high dimensional stability.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Bzw6fSGXQdNpXeczoNZcoMMOnOh\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Due to its comprehensive performance, Vespel® SP-21 is widely used in aerospace (such as high-temperature wear-resistant components in engine compartments), industrial machinery (bearings, bushings, seals, high-temperature sliding parts), semiconductor equipment (insulating and wear-resistant components), food processing machinery (food contact parts), and medical devices (components that require repeated sterilization and wear resistance).\u003c\/div\u003e\n\u003c\/div\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47668262502617,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/1768319392945.png?v=1768321002"},{"product_id":"polyimidepi-vespel®-sp-202","title":"DuPont Vespel® SP-202 Polyimide Resin","description":"\u003cdiv data-docx-has-block-data=\"false\" data-lark-html-role=\"root\" data-page-id=\"OG9HfCgjTdWNAncdlibcHCDAn7d\"\u003e\n\u003ch3 class=\"heading-2 ace-line old-record-id-Z1Hef4KJzdXj7fci8Qmcam9Tnyd\"\u003eDetailed Introduction of Vespel® SP-202\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-RElyfdXU9dtoOpcI33kcFUklnDe\"\u003eVespel® SP-202 is a specialized conductive polyimide (PI) molding compound produced by DuPont, uniquely formulated with proprietary conductive fillers to deliver exceptional electrostatic discharge (ESD) performance. As a thermosetting PI material, it integrates the inherent high-temperature resistance and chemical stability of polyimide with reliable conductive properties, making it a critical material for applications requiring rapid static dissipation in extreme environments.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KZwRfazC4djmN9c3RahcimE4nNb\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eCore Properties: Conductive Performance: It features excellent electrical conductivity with surface resistivity ranging from 10⁻¹ to 10¹ Ω and volume resistivity of 10⁻¹ to 10¹ Ω·cm, enabling quick and efficient static charge elimination to protect sensitive electronic components from ESD damage.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KZwRfazC4djmN9c3RahcimE4nNb\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eThermal Performance: The material maintains stable performance at a continuous operating temperature of up to 260°C (500°F) and can withstand short-term exposure to temperatures as high as 482°C (900°F). It also retains good toughness at cryogenic temperatures down to -269°C (-452°F), adapting to extreme temperature fluctuations. \u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTribological Properties: Vespel® SP-202 exhibits superior wear resistance and dimensional stability, with a low friction coefficient that supports stable operation in oil-free or low-lubrication scenarios, reducing maintenance needs.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KZwRfazC4djmN9c3RahcimE4nNb\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eChemical Resistance: It is highly resistant to most acids, bases, organic solvents, aviation fuels, and hydraulic oils, along with excellent hydrolysis and aging resistance, ensuring long-term service in harsh corrosive environments.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KZwRfazC4djmN9c3RahcimE4nNb\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eMechanical Strength: The material possesses reliable tensile strength, impact resistance, and creep resistance, maintaining structural integrity under static and dynamic loads. \u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eOther Advantages: It has a black appearance, is machinable into precision components via isostatic pressing or direct forming (DF) processes, and meets relevant industrial standards for electronic and aerospace applications.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Kw7UfvYf4dG4jEcWo0qcfpP2nob\"\u003e\n\u003cspan\u003e\u003cspan style=\"font-family: 宋体;\"\u003e·\u003c\/span\u003e\u003c\/span\u003eTypical Applications: Vespel® SP-202 is widely used in semiconductor manufacturing (wafer carriers, ESD-safe fixtures), aerospace (static-dissipative components in engine compartments and cabin interiors), electronic equipment (ESD protection parts for sensitive circuits), and industrial machinery (conductive wear-resistant components in high-temperature environments).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"shunhan","offers":[{"title":"Default Title","offer_id":47668315390169,"sku":null,"price":0.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/files\/1768319392945.png?v=1768321002"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/2483\/3241\/collections\/Vespel_SP-1_dfc86f07-9fb5-4445-9cd2-9bc5633ca408.png?v=1774513111","url":"https:\/\/www.shunhanplastics.com\/collections\/pi-1.oembed","provider":"ShunHan Plastics","version":"1.0","type":"link"}