Siraya Tech Tenacious
Siraya Tech
55
°C
Max Service
Overview
Extremely tough flexible-rigid resin with rubber-like energy absorption. Can be mixed 10-30% with any standard resin to dramatically improve impact resistance without losing detail. Pure Tenacious is semi-flexible; blended adds toughness to rigid prints.
Properties
Difficulty
intermediate
Flexibility
semi-flex
Layer Adhesion
excellent
Enclosure
required
Heated Bed
no
Dry Storage
no
Pros
- Exceptional impact resistance — bends before breaking
- Blendable — add 10-30% to standard resin for toughness
- Holds excellent detail even when flexed
- Can survive drop tests
- Most popular toughening additive for MSLA
- Good price per kg
Cons
- Very viscous — must warm to 35°C and stir thoroughly
- Very long exposure times when pure
- Can be sticky if undercured
- Not truly rigid when pure
- IPA wash required
- Strong odor
Best For
- Wearables and snap-fit parts|RC car and drone components|Mixed with rigid resin for toughened prints|Functional prototypes requiring impact resistance|Sports equipment|Flexible hinges
Avoid For
- Optically clear applications|High-temp use|Food contact|Parts needing true rigidity (use Blu instead)
Storage
Very viscous — warm bottle in water bath to 35°C before use. Stir with stick, not shake (bubbles). Mix into standard resin for blend: stir in separate container before adding to vat.
Brands
Siraya Tech