SUNLU Silk Rainbow PLA+ Filament Bundle (8 x 250g) – 2kg Total, Multicolor with Fast 8m Colour Change
Product description
What it is
The SUNLU Silk Rainbow filament bundle is a PLA+ filament in a multicolor, glossy “silk” finish. Supplied as eight 250g spools, it totals 2kg, designed for desktop 3D printing with a vivid colour-changing capability every 8 metres.
How it works and why it matters
This filament aims to give your prints a shiny, smooth surface thanks to the Silk PLA concept. The colour shifts occur along the print path, creating varied visual effects without swapping filaments mid-print. On the paper, the approach seems convenient for projects that benefit from gradient or segmented colour transitions in a single object.
What’s good about it
A neatly wound spool design reduces tangling and feeding issues, which helps during longer print runs. The glossy finish can add a sense of depth and richness to models, especially for art projects or display pieces where appearance matters.
What could be a limitation
Colours may vary between rolls, so the initial colour you see in the image might not match the first section of your print. Also, for the most pronounced silk shine, you may need higher temperatures and slightly slower speeds. If you prioritise perfectly uniform colour blocks, this approach delivers less predictability.
Suitable for
Crafters, hobbyists and makers who enjoy visually striking prints without switching filaments frequently. It’s a practical option when you want multiple tones in one model, such as decorative objects, jewellery-style parts or display pieces.
Who it isn’t ideal for
If you require precise, flat colour fields or standard matte PLA for functional parts where appearance is secondary, this bundle may feel overkill. It’s also worth noting that the colour changes are per 8 metres, which may not align with every print’s segment design.
When it makes sense to buy
If your projects benefit from a silk look and you’re happy to experiment with colour variation along the print, this bundle offers value by providing eight rolls in one package. It’s particularly convenient for inaugural experiments with Silk Rainbow PLA+ and for keeping a steady supply of colours on hand.
What to check before buying
- Review the recommended settings: nozzle 205–235°C, bed 50–60°C, speed 50–200 mm/s. These help achieve the glossy finish.
- Expect colour shifts every 8 metres, plan your model’s colour transitions accordingly.
- Ensure your 3D printer can handle PLA+ and the temperature range without issues.
How it compares to alternatives
Compared with standard PLA or single-colour filaments, this bundle trades consistent single-tone outputs for decorative, changing colours and a silk shine. If you prefer more predictable colour blocks or higher-tidelity colour matching, a monochrome PLA+ or a different brand might be preferable. For those who want bold visuals with fewer spool swaps, this approach offers real convenience.
What you’ll notice in use (practical example)
Imagine printing a decorative vase with spirals of colour that shift as the wall curves. The silk finish catches light differently along the height, giving the object a subtle luster without extra finishing steps.
Decision – should you buy it?
Is it worth it? Worth considering if you value a visually dynamic, silk-finish look and are comfortable with varying colours between rolls. It may not be the best fit if you need perfectly uniform colour blocks or absolute predictability in colour placement.
FAQ
- How many metres of colour change does a roll provide? The product description specifies a colour change every 8 metres, but exact metreage per object will depend on your model’s path.
- Can I achieve a glossy finish at all print speeds? Higher temperatures and slower speeds generally help maximise gloss, within the recommended 205–235°C nozzle range and 50–60°C bed.
- Are the colours guaranteed to match across all eight rolls? The overall colour composition is intended to be consistent, though individual rolls may start from different initial colours.