{"product_id":"silicone-40a-resin-form-4-1-l","title":"Formlabs Silicone 40A Resin (Form 4) 1 L","description":"\u003cp\u003eSilicone 40A Resin is the first accessible 100% silicone 3D printing material, using Formlabs’ patent-pending Pure Silicone Technology™. Eliminate moulding and labour-intensive casting processes and 3D print pure silicone parts in-house, in a matter of hours.\u003c\/p\u003e\n\n\u003cp\u003eWith this 40A Shore durometer material, you can fabricate soft, pliable, and durable parts with a 230% elongation at break and a 12 kN\/m tear strength that can withstand repeated cycles of stretching, flexing, and compression.\u003c\/p\u003e\n\n\u003cp\u003eCombine the high performance of silicone and the design freedom of 3D printing to create highly functional silicone parts with excellent chemical and thermal resistance (-25°C to 125°C), fine features as small as 0.3 mm, and complex geometries that are not possible with traditional methods.\u003c\/p\u003e\n\n\u003cdiv style=\"margin: 24px 0;\"\u003e\n  \u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"text-align:left; padding:12px; border-bottom:1px solid #ddd;\"\u003eSpecification\u003c\/th\u003e\n        \u003cth style=\"text-align:left; padding:12px; border-bottom:1px solid #ddd;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003ePrint Technology\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eSLA\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eBiocompatibility\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eSkin Contact\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eMinimum Layer Thickness\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e100 micron\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eCategories\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eTemperature Resistant, Elastomeric, Specialty, Medical\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eApplications\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eManufacturing Aids, End-Use Parts, Rapid Prototyping\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eRecommended Applications\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eSeals and gaskets, wearables, customised medical devices\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eElongation at Break\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e230.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eTear Strength\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e12.0 kN\/m\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e5.0 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eStress at 100% Elongation\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e1.0 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eRoss Flexing Fatigue\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e500000.0 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eShore Hardness\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e40.0 A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 32px 0;\"\u003e\n  \u003ch2 style=\"margin-bottom:16px; padding-bottom:8px; border-bottom:1px solid #ddd; font-size:22px;\"\u003eCompatibility\u003c\/h2\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCompatible Build Platform:\u003c\/strong\u003e Form 4 Build Platform, Form 4 Flex Build Platform, Form 3 Build Platform, Form 3 Build Platform 2, Form 3 Stainless Steel Build Platform\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCompatible Tank:\u003c\/strong\u003e Form 4 Resin Tank, Form 3 Resin Tank V2.1\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eCompatible Printer:\u003c\/strong\u003e Form 4, Form 4B, Form 3, Form 3B\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 48px 0;\"\u003e\n  \u003ch2 style=\"font-size:28px; margin-bottom:12px;\"\u003eWhy Choose Silicone 40A Resin?\u003c\/h2\u003e\n\n  \u003cp\u003eSilicone 40A Resin is a pure silicone, without added monomer or acrylate, enabled by Formlabs’ patent-pending Pure Silicone Technology™. Silicone 40A Resin combines the superior material properties of cast silicone with the benefits of 3D printing.\u003c\/p\u003e\n\n  \u003cdiv style=\"display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:20px; margin-top:24px;\"\u003e\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eOutstanding Elastomeric Performance\u003c\/h3\u003e\n      \u003cp\u003eFabricate soft, pliable, and durable parts with a 230% elongation at break and a 12 kN\/m tear strength that can withstand repeated cycles of stretching, flexing, and compression.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eCost-Effective Rapid Prototyping and Low Volume Manufacturing\u003c\/h3\u003e\n      \u003cp\u003eEliminate tooling and labour-intensive casting processes to enable custom and low-volume manufacturing of silicone parts.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eNewfound Design Freedom\u003c\/h3\u003e\n      \u003cp\u003eCreate customised silicone parts with isotropic properties, fine features as small as 0.3 mm, and complex geometries that aren’t possible with casting or moulding.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eFast and Easy Fabrication\u003c\/h3\u003e\n      \u003cp\u003eBenefit from the Formlabs SLA ecosystem to produce pure silicone parts in-house, in a matter of hours.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 48px 0;\"\u003e\n  \u003ch2 style=\"font-size:28px; margin-bottom:12px;\"\u003eApplications\u003c\/h2\u003e\n\n  \u003cp\u003eSilicone 40A Resin is a cost and time-effective solution for fabricating functional prototypes, validation units, tooling, and small batches of silicone parts. Parts printed in Silicone 40A Resin are soft and durable, with excellent elasticity, chemical resistance, and thermal stability. They are used in industries such as consumer goods, automotive, robotics, manufacturing, and healthcare.\u003c\/p\u003e\n\n  \u003cdiv style=\"display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:20px; margin-top:24px;\"\u003e\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eSeals, Gaskets, Grommets, Connectors, and Dampeners\u003c\/h3\u003e\n      \u003cp\u003eProduce functional silicone components for automotive, robotics, and manufacturing applications.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eCustomised Prosthetics, Orthotics, Audiology Models, and Medical Devices\u003c\/h3\u003e\n      \u003cp\u003eCreate soft, durable silicone parts for customised healthcare and medical applications.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eWearables, Handles, and Grippers\u003c\/h3\u003e\n      \u003cp\u003eProduce flexible, comfortable parts for consumer products and handheld applications.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eFlexible Fixtures, Masking Tools, and Soft Moulds\u003c\/h3\u003e\n      \u003cp\u003eCreate tooling for casting urethane or resin, masking, and flexible manufacturing aids.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 48px 0;\"\u003e\n  \u003ch2 style=\"font-size:28px; margin-bottom:12px;\"\u003eMaterial Properties*\u003c\/h2\u003e\n\n  \u003cp\u003e\u003ca href=\"https:\/\/formlabs.com\/uk\/materials\/data-sheets\/?product=silicone40a\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload Silicone 40A Resin Technical Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003cdiv style=\"margin-top:24px;\"\u003e\n    \u003ctable style=\"width:100%; border-collapse: collapse;\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth style=\"text-align:left; padding:12px; border-bottom:1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"text-align:left; padding:12px; border-bottom:1px solid #ddd;\"\u003ePost-cured for 45 minutes at 60 ºC in a beaker of water\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eShore Hardness\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eUltimate Tensile Strength\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e5.5 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eElongation at Break\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e230%\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eTear Strength\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e12 kN\/m\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eRebound Resilience\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e34%\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eGlass Transition Temperature (Tg)\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e-110 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eRoss Flexing Fatigue (-10 °C, notched)\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e\u0026gt; 500,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003eRoss Flexing Fatigue (23 °C, notched)\u003c\/td\u003e\n\u003ctd style=\"padding:10px 12px; border-bottom:1px solid #eee;\"\u003e\u0026gt; 500,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 48px 0;\"\u003e\n  \u003ch2 style=\"font-size:28px; margin-bottom:12px;\"\u003eWorkflow\u003c\/h2\u003e\n  \u003cp\u003e\u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Using-Silicone-40A-Resin\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUsing Silicone 40A Resin\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 48px 0;\"\u003e\n  \u003ch2 style=\"font-size:28px; margin-bottom:12px;\"\u003ePost-Processing\u003c\/h2\u003e\n\n  \u003cdiv style=\"display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:24px; margin-top:24px;\"\u003e\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eWashing\u003c\/h3\u003e\n      \u003cp\u003eThe foundational step in any SLA post-processing workflow is to remove any excess resin on the surface of the parts through an alcohol or ether wash.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eSettings:\u003c\/strong\u003e \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Wash-Time-Settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Wash\u003c\/a\u003e | \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Wash-Time-Settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Wash L\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding:20px; border:1px solid #ddd; border-radius:12px;\"\u003e\n      \u003ch3 style=\"margin-top:0;\"\u003eCuring\u003c\/h3\u003e\n      \u003cp\u003ePost-curing Engineering and Specialty Resins is essential for parts to achieve their full strength and functionality. This step completes the chemical reaction initiated during printing, transforming the part from its green state into a fully finished component.\u003c\/p\u003e\n      \u003cp\u003e\u003cstrong\u003eSettings:\u003c\/strong\u003e \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Cure-Time-and-Temperature-Settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Cure V1\u003c\/a\u003e | \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Cure-2nd-Generation-time-and-temperature-settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Cure V2\u003c\/a\u003e | \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Cure-L-time-and-temperature-settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Cure L V1\u003c\/a\u003e | \u003ca href=\"https:\/\/support.formlabs.com\/s\/article\/Form-Cure-L-V2-time-and-temperature-settings\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eForm Cure L V2\u003c\/a\u003e\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Formlabs","offers":[{"title":"Default Title","offer_id":56895277269374,"sku":"RS-C2-SI40-01","price":346.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/9464\/2434\/files\/Optimized_For_Web_PNG-F41L_SILICONE_40A_V1_RESIN_SPINE_LABEL_01_no_shadow.png?v=1783590786","url":"https:\/\/evo3d.co.uk\/products\/silicone-40a-resin-form-4-1-l","provider":"Evo3D","version":"1.0","type":"link"}