Flexible Resin - Tenacious Flex Black User Guide
For other resin user guides, please visit Siraya Tech support section
1. Introduce
Tenacious Flex Black is developed to be a resin to be flexible Resin with Faster Rebound and high impact resistance. While it does not have the same level of hardness/resolution as other resin, it still can capture a decent amount of details.
Due to higher polymer content for its outstanding mechanical properties, the ideal printing condition for Tenacious is over 25C.
If users can maintain a resin temperature of 30C, the printing time could be further reduced.
2. Shelf life
The shelf life of the resin is 2 years.
Even if it can be stored for such a long time, we still recommend that you use it in half a year.
UV Resin is a liquid sensitive to temperature, light, and time. Long-term storage will cause the components and pigment of the resin to precipitate and separate.
3. Cleaning
- Use a painter brush (or any brush made with hair) remove excess resins on the printed part with Use 95% concentrated Ethanol (preferred) or IPA to clean. Some form of methnol should work but make sure it does not contain acetone.
- After 2-3 minutes of cleaning action, remove alcohol with a hair dryer or air blower. For complex part with lots cavities, it may be a good idea to clean/dry multiple times.
- User can check by touching the dried surface of the part to see if it is still sticky. If the dried surface is still sticky, wash some more and dry again.
4. Post Curing
- Tenacious reached its optimal strength when the printed part is post-cured with UV after cleaned. Use 395-405nm UV light and cure for about 25 minutes.
- Make sure resin is completely cleaned off and there is not alcohol left on the print before curing. Curing by submerging object in water will significantly increase curing efficiency.
5. Recommend best support settings
Tenacious Flex has the excellent impact resistance and faster rebounding time than regular Tenacious. This means it likes thicker support to print well.
It is best to print no less than 80um for this resin.
Tenacious Flex Support recommendation: Tenacious has the more flexibility of all our resins Make sure the support tip diameter is 1.2mm for larger prints with a depth of 0.5mm.
(setting come from: https://www.facebook.com/groups/sirayatech/permalink/290257771885611/)
6. Before Printing
It is a good practice to mix resin and expose the bottom of the vat to air before printing. This replenish oxygen in the vat and helps reduce peel force.
It would also ensure print consistency if user can get the initial resin temperature above 25 and keep the environmental temperature above 20 C
7. Printing settings
Download print setiing here: Print setting file download.
Check out recommended support settings if you have print failures.
8. Mechanical properties
| Shore Hardness (A) | 70A |
| Tensile Stress at Break (MPa) | 5 |
| IZOD Impact (Notched, J/m) | - |
| HDT at 0.455 MPa (°C) | - |
| Elongation at Break (%) | 140 |
| Young's Modulus (MPa) | 100 |
9. More information
MSDS: Tenacious Flex Black MSDS