{"product_id":"sunlu-4kg-tpu-1-75mm-filament-bundle-fast-flexible-tpu","title":"SUNLU 4kg TPU 1.75mm Filament Bundle - Fast Flexible TPU","description":"\u003cp\u003eIn this review of the SUNLU 4kg TPU filament bundle we look at who will benefit most and why this pack stands out. The single biggest reason to consider it is the combination of a high Shore hardness and a high-speed printing formulation that promises faster, flexible prints without losing resilience. Buyers get four 1kg spools in useful transparent shades, vacuum sealed for storage, making it a practical choice for hobbyists and small shops that need consistent, wear-resistant TPU for functional parts.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh speed TPU:\u003c\/strong\u003e SUNLU says this TPU prints up to three times faster than ordinary TPU, which reduces production time for flexible parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e95A Shore hardness:\u003c\/strong\u003e The material balances softness and resilience so printed parts resist wear and shocks during sports or daily use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent layer adhesion:\u003c\/strong\u003e The filament bonds well between layers to produce smooth, durable prints with fewer delamination issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensional accuracy:\u003c\/strong\u003e 1.75mm diameter with +\/-0.03mm tolerance improves compatibility and reduces extrusion problems across many FDM printers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum packaging:\u003c\/strong\u003e Each spool is sealed to keep moisture out and preserve filament performance between purchases and prints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady color set:\u003c\/strong\u003e The 4-pack includes transparent plus transparent purple, green, and orange for visual variety without needing post-dyeing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe bundle is aimed at makers and small workshop users who print flexible functional parts like watch bands, phone cases, insoles, gaskets, and soft robotic elements and want a filament that prints faster than typical TPU while still offering good elasticity and wear resistance. Its tougher 95A hardness is suited to parts that must endure impacts and repeated flexing.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include users needing ultra-soft elastomers below 95A, specialty chemical-resistant grades, or users who require single-color industrial packaging; this pack is focused on general-purpose high-speed TPU in a mixed color set.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood balance of flexibility and toughness for functional wearable and utilitarian parts.\u003c\/li\u003e\n\u003cli\u003eFaster recommended print speeds (80-120mm\/s) help reduce job time for moderate-detail prints.\u003c\/li\u003e\n\u003cli\u003eConsistent 1.75mm diameter and vacuum packaging improve reliability and shelf life.\u003c\/li\u003e\n\u003cli\u003eMultiple transparent colors add visual options for prototypes and consumer products.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e95A is relatively firm for TPU, so it is not ideal when a very soft, rubberlike feel is required.\u003c\/li\u003e\n\u003cli\u003eSome user reports show mixed feedback on durability and adhesion in extreme use cases, so testing for specific applications is advised.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eThermoplastic polyurethane (TPU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e4 spools, 1kg each (4kg total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e1.75mm (0.03mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShore hardness\u003c\/td\u003e\n\u003ctd\u003e95A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended nozzle temp\u003c\/td\u003e\n\u003ctd\u003e210-230C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended bed temp\u003c\/td\u003e\n\u003ctd\u003e50-60C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrinting speed\u003c\/td\u003e\n\u003ctd\u003e80-120mm\/s recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe SUNLU 4kg TPU bundle is a practical value choice for makers and small shops that need a reliable, faster-printing TPU with a firm 95A feel. It delivers strong layer adhesion, consistent diameter, and vacuum-sealed spools, making it good value for flexible functional parts where toughness and print speed matter. Try a test print for your specific use to confirm adhesion and durability under your conditions.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this filament fit my 1.75mm FDM printer?\u003c\/strong\u003e\u003cbr\u003eYes, the 1.75mm diameter with 0.03mm tolerance is suitable for most 1.75mm FDM printers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat print settings work best?\u003c\/strong\u003e\u003cbr\u003eUse a nozzle temp of 210-230C, bed temp of 50-60C, and try speeds in the 80-120mm\/s range for faster results.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the filament packaged?\u003c\/strong\u003e\u003cbr\u003eEach spool is vacuum packed to keep moisture out and preserve filament quality until use.\u003c\/p\u003e","brand":"SUNLU","offers":[{"title":"Default Title","offer_id":48175259648219,"sku":"B0FB8VR2L4","price":75.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81zPBcDc0iL._AC_SL1500.jpg?v=1769396602","url":"https:\/\/gearmusthave.com\/products\/sunlu-4kg-tpu-1-75mm-filament-bundle-fast-flexible-tpu","provider":"GearMustHave","version":"1.0","type":"link"}