---
product_id: 595067568
title: "- Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg)"
brand: "siraya tech"
price: "€ 94.63"
currency: EUR
in_stock: true
reviews_count: 8
category: "Siraya Tech"
url: https://www.desertcart.hr/products/595067568-flex-tpu-filament-85a-shore-iso-10993-high-flexibility-toughness
store_origin: HR
region: Croatia
---

# High flow rate enabling faster print speeds 85A Shore hardness for ultimate flex & toughness ISO 10993 biocompatibility tested for safe wearables - Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg)

**Brand:** siraya tech
**Price:** € 94.63
**Availability:** ✅ In Stock

## Summary

> 🖤 Flex your creativity with Siraya Tech’s toughest, fastest, and safest TPU filament yet!

## Quick Answers

- **What is this?** - Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg) by siraya tech
- **How much does it cost?** € 94.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/595067568-flex-tpu-filament-85a-shore-iso-10993-high-flexibility-toughness)

## Best For

- siraya tech enthusiasts

## Why This Product

- Trusted siraya tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flex with Confidence:** Experience unmatched elasticity and durability with 85A Shore TPU, perfect for dynamic, wearable prints.
- • **Certified Safe for Skin:** ISO 10993-tested filament ensures biocompatibility, ideal for custom footwear and protective gear you can trust.
- • **Print Fast, Print Smart:** High-flow formulation accelerates your 3D printing without compromising precision—cut your project time down.
- • **Moisture-Proof Packaging:** Sealed in a moisture-resistant aluminum bag to preserve filament quality for up to 3 years—print anytime, no hassle.
- • **Versatility Meets Reliability:** Compatible with most 3D printers and perfect for both beginners and pros crafting everything from medical devices to custom inserts.

## Overview

Siraya Tech Flex TPU Filament 85A offers superior flexibility and toughness with a certified biocompatible formula, optimized for high-speed printing. Packaged in moisture-resistant aluminum for long shelf life, it’s ideal for professional-grade wearable and protective gear applications, delivering reliable, smooth prints compatible with most 3D printers.

## Description

desertcart.com: Siraya Tech Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg) : Industrial & Scientific

Review: Great for hard case tool inserts - I bought this to try making custom hard case inserts, similar to another reviewer. I was largely unsuccessful getting this to print at 270C on my 0.4mm nozzle (it immediately clogged), but after switching to 0.6mm I have had no issues at all. At the 270C settings, this material really can't do overhangs, but after doing some testing I found that it works fine at 15% infill with 4+ top layers. At lower infills or fewer top layers, the infill texture shows through and there can be gaps in the top layer. Because of the foaming aspect, prints seem to use less filament than if printed in regular TPU. The texture of the finished product is similar to EVA foam and looks very clean after cleaning up some errant strings. It is perfect for my use case, and it's so nice being able to print an exact fitting insert! In the past I used sheets of packing foam, and it always was a pain trying to cut an exact fit while maintaining a clean look. Since the surface comes out relatively smooth it's also easy to wipe clean. TLDR; this stuff is great!
Review: Seriously Great! - This is some genuinely great stuff. It took a bit to dial in the settings but after that it prints great. I recommend looking at the user guide for this on the Siraya Tech website. At max expansion, it’s less than half the density of regular TPU and really is fairly soft and super squishy. It also has a cool foam texture that hides layer lines. Doesn’t string at all and has great layer (and bed) adhesion. In fact, the bed adhesion is so good it peeled some of the PEI coating off 😅. It’s defintely weaker and less tear resistant at max expansion but it’s still super strong. The main problem is the fact it oozes constantly, which is due to it expanding. It’s honestly not much of a problem but it does effect the surface quality across gaps. Also, like every other TPU, it can’t do overhangs well bc the filament droops down.

## Features

- Superior Flexibility & Toughness: Siraya Tech's Flex TPU 85A 3d printer filament excels in flexibility and elasticity, making it ideal for durable, bendable 3D prints. Perfect for softer, pliable projects.
- ISO 10993 Tested: Our Flex TPU 85A has undergone testing according to ISO 10993-10, -5, and -23 protocols. These tests evaluate biological responses to materials, providing data on potential biocompatibility. This testing helps ensure peace of mind when printing for external-use wearables and devices.
- High Flow, High Speed: Designed for high-flow, Flex TPU 85A filament enables quicker prints than typical TPU 95a, blending speed with stellar outcomes. For the optimal printing experience, we recommend using a direct drive style extruder.
- Long-Lasting Quality with Special Packaging: Our Flex TPU 3d printer filament is sealed in moisture-resistant aluminum resealable bags, preventing water absorption and ensuring up to 3 years of shelf life and consistent print quality.
- Versatile for Various Applications: From custom footwear to medical devices, this Flex TPU filament 1.75mm meets diverse needs in creative and industrial settings. And compatible with most 3D printers, it guarantees a smooth and reliable printing process, suitable for both beginners and experts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CP213ZMG |
| Best Sellers Rank | #1,418 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #110 in 3D Printing Filament |
| Brand | Siraya Tech |
| Brand Name | Siraya Tech |
| Color | Tpu 85a Black |
| Customer Reviews | 4.4 out of 5 stars 579 Reviews |
| EU Spare Part Availability Duration | 3 Years |
| Item Diameter | 22 Centimeters |
| Item Weight | 1 Kilograms |
| Manufacturer | Siraya Tech |
| Material | Thermoplastic Polyurethane |
| Material Type | Thermoplastic Polyurethane |
| Unit Count | 35.274 Ounce |

## Product Details

- **Brand:** Siraya Tech
- **Color:** Tpu 85a Black
- **Item Diameter:** 22 Centimeters
- **Item Weight:** 1 Kilograms
- **Material:** Thermoplastic Polyurethane

## Images

![- Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg) - Image 1](https://m.media-amazon.com/images/I/711bEiSBbSL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for hard case tool inserts
*by E***L on December 2, 2025*

I bought this to try making custom hard case inserts, similar to another reviewer. I was largely unsuccessful getting this to print at 270C on my 0.4mm nozzle (it immediately clogged), but after switching to 0.6mm I have had no issues at all. At the 270C settings, this material really can't do overhangs, but after doing some testing I found that it works fine at 15% infill with 4+ top layers. At lower infills or fewer top layers, the infill texture shows through and there can be gaps in the top layer. Because of the foaming aspect, prints seem to use less filament than if printed in regular TPU. The texture of the finished product is similar to EVA foam and looks very clean after cleaning up some errant strings. It is perfect for my use case, and it's so nice being able to print an exact fitting insert! In the past I used sheets of packing foam, and it always was a pain trying to cut an exact fit while maintaining a clean look. Since the surface comes out relatively smooth it's also easy to wipe clean. TLDR; this stuff is great!

### ⭐⭐⭐⭐⭐ Seriously Great!
*by J***N on January 19, 2026*

This is some genuinely great stuff. It took a bit to dial in the settings but after that it prints great. I recommend looking at the user guide for this on the Siraya Tech website. At max expansion, it’s less than half the density of regular TPU and really is fairly soft and super squishy. It also has a cool foam texture that hides layer lines. Doesn’t string at all and has great layer (and bed) adhesion. In fact, the bed adhesion is so good it peeled some of the PEI coating off 😅. It’s defintely weaker and less tear resistant at max expansion but it’s still super strong. The main problem is the fact it oozes constantly, which is due to it expanding. It’s honestly not much of a problem but it does effect the surface quality across gaps. Also, like every other TPU, it can’t do overhangs well bc the filament droops down.

### ⭐⭐⭐⭐⭐ Such a cool tpu to print with
*by C***L on January 16, 2026*

This took a little time to get the settings dialed in perfect (BambuLab X1c). This does not print like 95a tpu. It wants to ooze out the print noozle, with existing flow settings. So, I had to turn my flow way down. Just follow Siraya tech's print recommendations and you will get to a great starting point. I love how if you print this at 240c it is more dense (heavier), and if you print at 270c it is more squishy (lighter). It has a texture a lot like filaments that have carbon or glass fiber in them. This gives it a great texture. I've printed squishy balls, croc shoes, and flying discs. All have been a blast to print. All I want more out of this product, is more colors to choose from!! I will buy more when that is the case.

## Frequently Bought Together

- Siraya Tech Flex TPU Filament - 85A Shore, ISO 10993, High Flexibility & Toughness, High Flow & Speed, Easy to Print, Moisture-Resistant Aluminum Bag - Ideal for Footwear, Protective Gear (Black, 1kg)
- OVERTURE TPU Filament 1.75mm Flexible TPU Roll, 95A Soft 3D Printer Filament, 1kg Spool (2.2 lbs), Dimensional Accuracy +/- 0.02 mm (TPU Black)
- OVERTURE PETG Filament 1.75mm, 3D Printer Filament, 1kg Filament (2.2lbs), Dimensional Accuracy Probability +/- 0.02 mm, Fit Most FDM Printers (Black (1-Pack))

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-13*