---
product_id: 659707364
title: "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)"
brand: "siraya tech"
price: "594 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Siraya Tech"
url: https://www.desertcart.pl/products/659707364-siraya-tech-flex-tpu-filament-85a-shore-iso-10993-high
store_origin: PL
region: Poland
---

# High flow & speed for faster prints 85A Shore hardness - perfect flex & toughness ISO 10993 biocompatibility tested 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)

**Brand:** siraya tech
**Price:** 594 zł
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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) by siraya tech
- **How much does it cost?** 594 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/659707364-siraya-tech-flex-tpu-filament-85a-shore-iso-10993-high)

## 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

- • **Speed Meets Precision:** High-flow filament designed for rapid printing without sacrificing quality—ideal for direct drive extruders.
- • **Biocompatible Confidence:** ISO 10993 tested, making it safe for wearable and medical-grade applications.
- • **Moisture-Proof Packaging:** Sealed in aluminum bags to lock in freshness and guarantee up to 3 years of shelf life.
- • **Unmatched Flex & Durability:** Rubber-like elasticity meets thermoplastic strength for resilient, bendable prints.
- • **Versatile for Pros & Creators:** From custom footwear to protective gear, compatible with most 3D printers for seamless use.

## Overview

Siraya Tech Flex TPU 85A filament offers a premium blend of flexibility and toughness with an 85A Shore hardness, optimized for high-speed, high-flow 3D printing. Tested for biocompatibility under ISO 10993 standards, it’s ideal for wearable and medical applications. Packaged in moisture-resistant aluminum bags, it ensures long-lasting quality and consistent performance, making it the go-to filament for professionals and enthusiasts crafting custom footwear, protective gear, and more.

## Description

Introducing the Siraya Tech Flex TPU Black/White 3D Printer Filament – a breakthrough in 3D printing technology. With its 85A Shore hardness, this premium filament is tailored for a wide range of printing needs, from professional to hobbyist uses. Why Choose Siraya Tech Flex TPU 3D Printer Filament? Exceptional Flexibility and Strength: Our Flex TPU 85A filament combines rubber-like elasticity with thermoplastic durability, perfect for versatile projects. And is significantly softer than commonly available 95A TPU. User-Friendly Printing: Designed for hassle-free printing, our 3d printer filament 1.75mm ensures an uninterrupted, smooth printing experience. Advanced Moisture Protection: Thanks to its aluminum packaging, our filament stays protected from moisture and external factors, preserving its quality for longer. Wide-Ranging Utility: Whether it's custom footwear, protective phone cases, or medical devices, the Flex TPU 85A is your filament of choice. Safety First: Prioritizing your health, our biocompatible filament is suitable for sensitive applications like medical device manufacturing.

Review: 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: Gut aber nicht billig 🙂

## 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 |
| Brand | Siraya Tech |
| Color | 38a black |
| Customer Reviews | 4.6 4.6 out of 5 stars (577) |
| Date First Available | 27 November 2023 |
| Ink Color | TPU 85A Black 1kg |
| Item Weight | 1 Kilograms |
| Manufacturer | Siraya Tech |
| Manufacturer Part Number | Flex TPU 85A Black 1kg |
| Material Type | Thermoplastic Polyurethane |
| Number of Items | 1 |
| Package Dimensions | 27.41 x 21.11 x 7.49 cm; 1 kg |

## Product Details

- **Brand:** Siraya Tech
- **Colour:** 38a black
- **Item diameter:** 1.75 Millimeters
- **Item weight:** 1 Kilograms
- **Material:** Thermoplastic Polyurethane

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/711bEiSBbSL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***L on 2 December 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!

### ⭐⭐⭐⭐ Review
*by P***T on 12 February 2026*

Gut aber nicht billig 🙂

### ⭐⭐⭐⭐⭐ Review
*by 納***ム on 27 January 2026*

TPUよりも印刷しやすく、TPUより弾力性があり、TPUより柔らかい。バイクのエアクリーナージョイントをTPUで作ったらキャブを入れるのに苦労したが、PEBAで作り直したらとても作業性が良くなった。絶版ゴム系パーツのリプロに十分使えると思います。

## 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 Poland*
*Store origin: PL*
*Last updated: 2026-03-17*