--- product_id: 256322847 title: "SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue" brand: "sainsmart" price: "€ 113.40" currency: EUR in_stock: true reviews_count: 6 category: "Sainsmart" url: https://www.desertcart.gr/products/256322847-sainsmart-21-028-224-flexible-tpu-filament-for-3d-printers store_origin: GR region: Greece --- # 95A Shore Hardness - perfect flex-rigidity balance ±0.05mm Diameter Precision - ultra-consistent extrusion 210-230°C Extruder Temp - optimized for smooth printing SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue **Brand:** sainsmart **Price:** € 113.40 **Availability:** ✅ In Stock ## Summary > 🛠️ Print Bold, Print Flexible — Own the Future of 3D Creativity! ## Quick Answers - **What is this?** SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue by sainsmart - **How much does it cost?** € 113.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/256322847-sainsmart-21-028-224-flexible-tpu-filament-for-3d-printers) ## Best For - sainsmart enthusiasts ## Why This Product - Trusted sainsmart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Vibrant Blue Hue:** Make your creations pop with a rich, eye-catching blue that commands attention and sparks creativity. - • **Warp-Free Printing:** Exceptional bed adhesion and minimal warping mean your prototypes and projects come out flawless every time. - • **Flex Meets Strength:** Engineered TPU delivers durable yet flexible prints that stand out in both form and function. - • **Versatile Applications:** From custom phone cases to drone parts and wearable tech, this filament adapts to your boldest ideas. - • **Universal Compatibility:** Seamlessly works with all 1.75mm FDM printers including Prusa, Creality, and more—no printer left behind. ## Overview SainSmart’s 21-028-224 TPU filament is a premium 1.75mm flexible filament with a 95A shore hardness, designed for high-strength, warp-resistant 3D printing. Compatible with all major FDM printers, it offers precise diameter control (±0.05mm) and prints best at 210-230°C extruder temperatures. Ideal for professional-grade flexible parts like wearables, automotive components, and protective cases, this vibrant blue filament combines durability with ease of use to elevate your 3D printing projects. ## Description Overview: Thermoplastic polyurethane (TPU) is a high strength flexible filament. TPU is essentially polyurethane, it belongs to the TPE class of thermoplastics (similar to the stuff NinjaFlex is made of). In addition to being stronger compared to other flexible materials on the market, we found TPU to be easier to print with, with great layer to layer bonding. Features: ● Specially formulated plastic with increased amount of flexibility, with rigid structure. ● Resistant to oil, grease and abrasions. ● Recommended for printing objects, which will be impacted more than normal ones. ● It has many applications including; automotive, power tools, sporting goods, medical devices, drive belts, footwear, inflatable rafts, profile applications, etc. ● TPU is also a popular material found in outer cases of mobile electronic devices, such as mobile phones. Specification: ● Material : Rep-Flex TPU - Vacuumed Sealed with desiccant ● Color: Blue ● shore hardness: 95A ● Weight: 1 KG (approximately 2.20 lbs) Spool Weight Total, Net Weight 0.8 KG ● Diameter: 1.75mm (+/- 0.05mm) ● Roundness: 1.75mm (+/- 0.03mm) ● Recommended extruder temperature: 210 - 230°C ● Recommended platform temperature: 30 - 40°C Pack List: 1x SainSmart 1.75mm Flexible(TPU) Series Filament for 3D Printers RepRap Review: Great Product - Great product worked well on speed 30, and temp 210, bed temp 60 perfect no stringing using cura and ender 3 V2 with a 0.6 nozzle Review: Great colour amazing quiality - I found this Tpu filament great. the colour is really nice I think finished prints look really nice. The print quality is really good as long as you take your time to dial in your settings mainly retraction and you will need good cooling fans for overhangs or bridges, the only part I have struggled with is overhangs and bridging not printing well and its a bit annoying. and I have had filament slowly curl up as it prints which is my fault not the filaments fault. I think the filament is great and I would only buy this brands TPU as I think it is the best ## Features - TPU (Thermoplastic Polyurethane) is a subclass of thermoplastics which prints strong parts that are also flexible. - Compatible with all FDM printers on the market that accept 1.75 mm filament. Including Prusa i3, Monoprice MakerSelect, SainSmart xCreality, WanHao & Qidi, and other RepRap printers. - With proper settings, TPU is easy to print thanks to excellent bed adhesion and the filament's tendency to not warp. - Great for a variety of projects, such as shoe insoles, watch bands, phone cases, drone parts and more! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00TI3JUVK | | Additional Features | Flexibility for diverse applications | | Brand | sainsmart | | Brand Name | sainsmart | | Color | Blue | | Colour | Blue | | Customer Reviews | 4.6 out of 5 stars 2,768 Reviews | | Global Trade Identification Number | 06955170883998 | | Item Diameter | 1.75 Millimeters | | Item Weight | 1.08 Kilograms | | Item diameter | 1.75 Millimeters | | Item weight | 1.08 Kilograms | | Manufacturer | SainSmart | | Manufacturer Part Number | 101-90-161 | | Material | Tpu | | Material Type | Tpu | | Model Number | 101-90-161 | | Number of Items | 1 | | Number of Packs | 1 | | Special features | Flexibility for diverse applications | | Unit Count | 1000.0 Grams | ## Product Details - **Brand:** sainsmart - **Colour:** Blue - **Item diameter:** 1.75 Millimeters - **Item weight:** 1.08 Kilograms - **Material:** Tpu ## Images ![SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue - Image 1](https://m.media-amazon.com/images/I/71ofxdpQO3L.jpg) ![SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue - Image 2](https://m.media-amazon.com/images/I/71UyF-+2-lL.jpg) ![SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue - Image 3](https://m.media-amazon.com/images/I/71w8MXvZN6L.jpg) ![SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue - Image 4](https://m.media-amazon.com/images/I/71t6tUVZokL.jpg) ![SainSmart 21-028-224 Flexible TPU Filament for 3D Printers, 1.75 mm, 1 kg, Blue - Image 5](https://m.media-amazon.com/images/I/61uEZcfCnDL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product *by F***N on 21 June 2021* Great product worked well on speed 30, and temp 210, bed temp 60 perfect no stringing using cura and ender 3 V2 with a 0.6 nozzle ### ⭐⭐⭐⭐⭐ Great colour amazing quiality *by P***S on 18 March 2026* I found this Tpu filament great. the colour is really nice I think finished prints look really nice. The print quality is really good as long as you take your time to dial in your settings mainly retraction and you will need good cooling fans for overhangs or bridges, the only part I have struggled with is overhangs and bridging not printing well and its a bit annoying. and I have had filament slowly curl up as it prints which is my fault not the filaments fault. I think the filament is great and I would only buy this brands TPU as I think it is the best ### ⭐⭐⭐⭐⭐ Great TPU, no issues *by N***T on 5 May 2020* First time using TPU, and had to get used to the nuances of it, but overall very happy with it. Packaging was great, and quality plastic is great. Prints well aside from the usual TPU issues. The fact Prusa has a profile for this specific brand made it even easier, but did find changing the print settings to 0 degrees for the bed and using painters tape made life easier than what was in the Prusa preset. ## Frequently Bought Together - Sain Smart 3D Printer Filament, Elastic Resin, TPU Filament for 3D Printers, 1.8 lbs (0.8 kg), 0.1 inch (1.8 mm) Diameter, New Material with Excellent Flexibility and Durability - eSUN PLA Plus 3D Printer Filament, PLA+, Dimensional Accuracy: +/- 0.001 Inches (0.03 mm), PLA Resin Molding Material Spool, Filament ⌀: 0.07 inches (1.75 mm), Net Weight: 2.2 Lbs (1 kg), Silver - OVERTURE TPU Filament 1.75mm, Flexible TPU Roll, 95A Soft 3D Printer Filament, 1kg Spool (2.2lbs), Dimensional Accuracy +/- 0.02mm (TPU White) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/256322847-sainsmart-21-028-224-flexible-tpu-filament-for-3d-printers](https://www.desertcart.gr/products/256322847-sainsmart-21-028-224-flexible-tpu-filament-for-3d-printers) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-09-08*