Spectrum PLA Thermoactive
Red to Orange/Yellow | Heat-Sensitive Change | Dynamic Interaction | 0.50kg-1kg
Spectrum PLA Thermoactive Red is a cutting-edge aesthetic filament that changes its physical appearance based on temperature. At room temperature, your models will exhibit a bold, Deep Red finish. However, as soon as the surface temperature exceeds 30°C—whether through touch, warm water, or environmental heat—it undergoes a mesmerizing transformation into a vibrant Orange/Yellow.
This "active" property makes it an exceptional choice for creators looking to add a layer of sensory interaction to their 3D prints. Once the material cools down, it reverts to its original red state, allowing for endless cycles of color shifting.
Because the transition threshold is set near 30°C, the color change can be triggered by human touch. Holding a printed part in your hand will leave temporary "heat prints" on the surface, making it an incredible medium for educational models, stress-relief toys, and interactive art.
🔄 Reversible Color Shift
The transition between red and yellow is fully reversible and occurs rapidly upon reaching the thermal threshold.
🎨 High Visual Contrast
The distinct difference between the "Cold" (Red) and "Hot" (Orange) states ensures maximum impact for visual demonstrations.
📐 Premium PLA Base
Maintains all the ease-of-use benefits of standard PLA, including low warping and excellent detail reproduction.
🔨 Post-Process Friendly
Can be sanded and finished like standard PLA without losing its thermo-sensitive properties.
- Heat-sensitive indicators for industrial components
- Educational STEM models demonstrating thermodynamics
- Interactive toys and "magic" figurines
- Custom coasters and drinkware accessories
- Stress-relief items and tactile puzzles
- Smart home decor that responds to sunlight or heating
| Material Identity & Thermal Specs | |
|---|---|
| Producer / Series | Spectrum Filaments / PLA Special |
| Material Type | PLA + Thermochromic Pigments |
| Filament Diameter | 1.75 mm ± 0.05 mm |
| Activation Temp | Approx. 30°C (86°F) |
| Color Transition | Deep Red (Cold) → Orange/Yellow (Hot) |
| Net Weight | 0.50 kg (Hobbyist Spool)-1 kg |
| EAN / SKU | 5903116680675 / 80067 |
| Nozzle Temperature | 185 - 215°C |
| Heated Bed Temperature | 0 - 45°C |
| Print Speed | 40 - 110 mm/s |
| Cooling Fan Speed | 100% (For crisp details) |
| Nozzle Type | Standard Brass |
| Bed Adhesive | PEI / Glass / Glue Stick |
| Diameter Accuracy | Thermal Stability | Protection | Compliance |
|---|---|---|---|
| ±0.05 mm (2-Axis) | Cycle-Tested Pigments | Vacuum Sealed + Desiccant | Individual QR Code Quality Report |
Explore the chemistry and safety of active materials:
* Creative Tip: To demonstrate the effect most vividly, print models with variable wall thickness. Thinner sections will change color faster when exposed to heat, creating a dynamic gradient effect across the surface. Avoid prolonged exposure to direct UV sunlight to preserve the pigment's long-term sensitivity.


























