CAI LAB Wiki
PLA Rainbow TDS
This PLA Rainbow series features a natural gradient formulation that delivers smooth, seamless color transitions, allowing for rich visual effect in a single print without the need for filament changes. The material is based on biodegradable PLA and the full series covers a wide range of gradient color options. It is well suited for artistic models, decorative ornaments, educational displays, and creative aesthetic parts, giving your prints greater expressiveness through color dynamic flowing.
Basic information
| Property |
Data |
| Material name |
PLA Rainbow |
| Density |
1.26g/cm³ |
| Moisture content |
0.25% |
| Test standards |
ISO 527, ISO 178, ISO 180, ISO 75, GB/T 3682, GB/T 37643 |
Tensile · ISO 527
| Property |
Direction |
Data |
Unit |
| Tensile Strength |
Y |
60.245 |
MPa |
| Tensile Strength |
X |
44.303 |
MPa |
| Tensile Strength |
Z |
16.665 |
MPa |
| Breaking Elongation Rate |
Y |
8.020 |
% |
| Breaking Elongation Rate |
X |
7.145 |
% |
| Breaking Elongation Rate |
Z |
3.126 |
% |
Bending · ISO 178
| Property |
Direction |
Data |
Unit |
| Bending Strength |
Y |
100.110 |
MPa |
| Bending Strength |
X |
45.822 |
MPa |
| Bending Strength |
Z |
22.477 |
MPa |
| Bending Modulus |
Y |
3426.125 |
MPa |
| Bending Modulus |
X |
2985.311 |
MPa |
| Bending Modulus |
Z |
2365.225 |
MPa |
Impact · ISO 180
| Property |
Direction |
Data |
Unit |
| Impact Strength |
Y |
5.761 |
kJ/m² |
| Impact Strength |
X |
5.522 |
kJ/m² |
| Impact Strength |
Z |
2.364 |
kJ/m² |
Thermal properties
| Property |
Direction / condition |
Data |
Unit |
| Heat Deflection Temperature |
X Axis |
53.2 |
°C |
| Melt Index |
190℃ / 2.16kg |
11.96 |
g/10min |
Recommended printing parameters
These settings are reference values for a Bambu Lab P1S; adjust for the printer, model and requirements.
| Setting |
Data |
| Nozzle Temperature / Speed |
Temperature ℃ Speed mm/s 190–230℃ / Best 220℃ ＜300mm/s |
| Maximum Volumetric Flow |
14.5mm³/s |
| Nozzle Diameter |
0.2/0.4/0.6/0.8mm |
| 3D Printer Bed Texture |
PEI Plate / Smooth PEI Plate |
| Bed Temperature |
35-45℃ |
| Cooling Fan |
50-100% |
| Retraction Distance |
0.6-1.0mm |
| Retraction Speed |
20-40mm/s |
| Ambient Temperature |
25-45℃ |
| Printing & Storage Conditions |
＜20% RH (Avoid direct sunlight, tightly sealed with desiccant) |
Key characteristics
Natural Gradient Colors Every print is unique with smooth and seamless color transitions. The natural gradient effect is achieved in a single print, delivering rich visual effect. Eco-Friendly PLA Base Made from biodegradable PLA material, producing no toxic or irritating odors during printing. Safe and eco- friendly. Easy Printability Compatible with almost all FDM printers and AMS, suitable for everyday creative projects and batch production. Rich Color Options Available in a variety of rainbow color schemes, including multi-color gradients and candy-color palettes, with a wide selection across the full series. Application Orientation The vibrant gradient appearance makes it ideal for jewelry, artistic ornaments, gift items, and other aesthetic-focused models, as well as display pieces and educational maker works where color and effect expression are key priorities.
Specimen printing conditions
| Setting |
Data |
| Nozzle Temperature |
220℃ |
| Bed Temperature |
55℃ |
| Wall Layers |
2 layers |
| Top and Bottom Layers |
Top 5 layers / Bottom 3 layers |
| Infill |
100% |
| Ambient Temperature |
23-25℃ |
| Cooling Fan |
100% |
| Printing Speed |
45mm/s |
| Nozzle Diameter |
0.4mm |
All specimens were printed on a Bambu Lab P1S. Because basic PLA rainbow has high toughness but low strength, annealing offers little improvement to the overall performance of printed parts. Additionally, parts with complex or non-simple geometries are prone to significant deformation. Thus, annealing is not advised.
Disclaimer
All typical values stated in this technical data sheet are derived from tests conducted on standard CaiLab specimens and are provided for reference and comparative purposes only. They are not intended to serve as design specifications or quality assurance criteria. Actual performance of 3D printed parts may differ considerably due to factors such as printer types, printing parameters, model geometries, and parameter settings. The fitness of any final printed part depends not only on the filament, but also on factors like part design, operating conditions and printing process. Product specifications are subject to change and may not be separately notified in advance. In the process of using CaiLab 3D Printing Filaments, users are responsible for evaluating the safety, legality, technical performance for their intended applications, as well as waste disposal/recycling methods. CaiLab is not responsible for the use of materials and scenarios, nor for any damage that occurs in the process of using our 3D printing filaments.
