Description
- Blu is a tough engineering resin that has excellent mechanical properties.
- High hardness and robustness make it suitable for various parts and tool making.
- It is also bio-compatible as certified under ISO 10993-10.
Application:
- Engineering Prototypes
- Mechanical Aids
- Fixtures and Jigs
- Medical Devices
Reach and ROSH Certification: Click here to view
Biocompatible for external skin-safe application under ISO 10993-10 standard, check here to view
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Siraya Tech Tough Resin - Blu
If you want a resin with an excellent balance of hardness and toughness, Tough Blu is your best choice!
Why choose Blu Tough resin
It balances between strength and hardness and is ideal for making functional parts that are strong yet with some flexibility.
Excellent mechanical properties
Unlike many resins on the market that are too brittle, Blu has excellent mechanical properties that can withstand forces without breaking easily.
Excellent impact resistance
Strong enough to withstand the impact of an accidental drop.
Tappable
It can be tapped without cracking and is dimensionally stable, suitable for the production of various types of engineering parts.
What are the differences between the different colors of Siraya Tech Tough resin - Blu?
Blu Emerald Blue/Clear V2/ Obsidian Black
They have the same mechanical properties, the biggest difference between the three is the color.
These three colors are the regular versions of Blu Tough resin.
Blu Nylon Black
Nylon Black is 25% tougher than regular Blu. The colors of Nylon Black and Onsidian Black are roughly the same.
Blu Nylon Mecha
Blu Mecha adds a new composite material that helps the resin reduce powder generated by friction, making the surface smooth and wear-resistant.
Blu Easy Grey
This is the latest version of Tough resin - Blu. Blu Easy reduces the original printing difficulty and optimizes details, making it more suitable for desktop-level and miniature printing. Blu Easy gives the prints a certain degree of impact resistance.

Unlike many resins on the market that are too brittle to handle even the slightest drop, Blu has excellent mechanical properties that can withstand forces without breaking easily.
- High Toughness
- Excellent resolution
- Strong and Precise High Resolution
- Precise Prints and No smelly
- Balances between strength and hardness
- Balance between sturdiness and flexibility
- ISO 19903-10 Biocompatibility certification
High Toughness
Balances between strength and hardness can withstand bending, flexing, and compression. Its high toughness can fully ensure that the prints are not easily broken during repeated bending and stretching.
ISO biocompatibility certification
Blu has passed the ISO 10993-5 and ISO 10993-10 certifications for skin contact, which means it does not cause irritation, inflammation, or sensitization when in contact with human skin externally.
Widely Used Blu Engineering Resin
Blu tough resin is not only suitable for some small functional parts that needed good strength without being brittle, like tools, screws, brackets, bases, etc, but also can print pretty 3d models. And is compatible with most LCP and DLP 3D printers and is 8K/12k compatible.
Before and After Sun
How to make your Blu print blue?
--A little sunshine (30 minutes) is all your need.
The model is a beautiful cyan blue before the sun, and it will turn blue after the sun.
Blu series mechanical properties
| Properties | Regular Blu | Blu Nylon Black | Blu Nylon Mecha | Blu Easy | Blu Lava |
|---|---|---|---|---|---|
| Shore Hardness - D | 80 | 78 | 73 | 75 | 87 |
| Tensile Stress at Break - MPa | 50 | 45 | 58 | 42 | 60 |
| IZOD Impact - Notched, J/m | 45 | 53 | 50 | 42 | 47 |
| HDT at 0.455 MPa - C | 70 | 63 | 65 | 62 | 75 |
| Elongation at Break - % | 32 | 50 | 45 | 43 | 12 |
| Young's Modulus - MPa | 1800 | 1750 | 1900 | 1000 | 2500 |




































