Quick verdict: Siraya Tech Fast Grey is the best all-round grey resin for miniature printing. It captures fine detail well, cures reliably on all major MSLA printers, and the grey colour gives you a neutral base that takes primer and paint without issues. It is also the ideal mixing base for Siraya Hartnäckig when you want to add durability to thin parts.
What is Siraya Tech Fast Grey?
Siraya Tech Fast is an ABS-like photopolymer resin made by Siraya Tech, formulated for fast cure times and high surface detail. The grey variant is the most popular colour choice among miniature printers for a straightforward reason: grey is neutral. It does not influence how paint looks on top of it, it shows surface detail clearly under a lamp during quality-checking, and it behaves like a grey primer — meaning you can often go straight to a base coat without a separate priming step.
The “Fast” in the name refers to its shorter layer exposure requirements compared to standard resins of the same hardness. On most 4K mono printers, Fast Grey cures quickly at normal layer thicknesses, which means shorter print times without sacrificing detail.
Siraya Tech Fast Grey Review: Pros and Cons
Profis
- Excellent surface detail for miniature-scale models
- Grey colour is ideal for miniature painting workflows
- Faster cure times than many comparable resins
- Mixes well with Siraya Hartnäckig for added durability
- Consistent batch-to-batch performance
- Works in all 405nm MSLA/LCD printers (Elegoo, Anycubic, Phrozen, Bambu)
- Support removal is clean without excessive tearing
Nachteile
- More brittle than ABS-like resins when used alone — thin parts can snap under impact
- Slightly higher price per litre than budget options like Sunlu
- Grey colour only — not ideal if you want a white or clear base
Why Grey is the Best Resin Colour for Miniature Printing
If you are new to resin printing for miniatures, you might wonder why colour matters at all — you are going to paint the model anyway. The answer is that grey resin gives you useful information before painting:
- Detail checking — grey shows layer lines, surface defects, and print failures more clearly than black or clear resin. You can spot problems under a desk lamp before priming.
- Painting compatibility — grey is a neutral base that does not bleed through thin paint coats. White resin can make dark colours look washed out; black resin makes it harder to see where you have applied paint.
- Primer substitute — for well-printed models, grey resin often accepts a first base coat directly without a separate primer step, saving time in the painting workflow.
Print Settings for Siraya Tech Fast Grey
As with any resin, exact settings vary by printer and layer thickness. These are typical starting points for common printers:
| Printer | Layer thickness | Normal exposure | Bottom layers |
|---|---|---|---|
| Elegoo Saturn 2 (4K mono) | 0.05mm | ~2.5s | 30s / 4 layers |
| Anycubic Photon Mono X (4K) | 0.05mm | ~2.8s | 30s / 4 layers |
| Phrozen Sonic Mini 8K | 0.05mm | ~2.0s | 25s / 4 layers |
| Bambu Photon / general mono | 0.05mm | ~2.5s | 30s / 4 layers |
Anmerkung: Always run a calibration test (such as the Cones of Calibration or Ameralabs Town print) on a new bottle before printing full models. Resin batches can vary slightly and print settings on this page are starting points only.
Siraya Tech Fast Grey vs Other Grey Resins
| Resin | Detail | Zähigkeit | Preis | Best for |
|---|---|---|---|---|
| Siraya Tech Schnell Grau | ★★★★★ | ★★★ | Mid | General miniature printing, mixing base for Tenacious |
| Sunlu Standard Grey | ★★★★ | ★★★ | Low | Budget volume printing, terrain |
| Elegoo Standard Grau | ★★★★ | ★★★ | Low-Mid | Reliable everyday resin, wide availability |
| Siraya Hartnäckig (additive) | ★★★★★ | ★★★★★ | Mid (used at 20%) | Mixed with Fast Grey for durable gaming pieces |
The Best Setup: Fast Grey + Tenacious
The combination that most experienced miniature printers settle on is 80% Siraya Tech Fast Grey + 20% Siraya Hartnäckig. Fast Grey provides the detail and the grey base colour. Tenacious adds the durability that stops thin weapons and fine parts from snapping during handling and transport.
If you are only printing large terrain, thick bases, or models that will not be handled much, Fast Grey on its own is sufficient. For infantry-scale gaming pieces that will be transported in a case and handled at the table, add Tenacious to the mix.
For the printer, see our best resin printer for miniatures guide and our Elegoo Saturn 2 review for the most popular mid-range option.
Frequently Asked Questions
Is Siraya Tech Fast Grey good for miniatures?
Yes — it is one of the most consistently recommended resins in the miniature printing community. The grey colour, detail level, and reliable cure behaviour make it well-suited for gaming pieces at 28–32mm scale and larger. For maximum durability, mix with 20% Siraya Tenacious.
What is the difference between Siraya Tech Fast and Siraya Tech Fast Grey?
Siraya Tech Fast is the base product line; Fast Grey is simply the grey-coloured variant of that line. The resin formulation is the same — only the pigment differs. Other colour variants in the Fast range include black, white, and clear. For miniature painting, grey is the most practical choice.
Can I mix Siraya Tech Fast Grey with Siraya Tenacious?
Yes, and this is the most popular use case for both products. Mix 80% Fast Grey with 20% Tenacious for durable miniature prints that still capture fine detail. Both are Siraya Tech products and are formulated to be compatible. Shake the mixed vat for at least 60 seconds before printing.
How does Siraya Tech Fast Grey compare to Elegoo or Sunlu grey resin?
Siraya Tech Fast Grey generally has a slight edge in surface detail and consistency at the cost of a higher price per litre. Elegoo Standard Grey and Sunlu Standard Grey are both solid, cheaper alternatives that work well for terrain and models where maximum detail is less critical. For character models and showcase pieces, Fast Grey is worth the premium.
Does Siraya Tech Fast Grey work with all resin printers?
Yes. It is a standard 405nm UV photopolymer resin and works with all MSLA/LCD printers including the Elegoo Saturn series, Anycubic Photon series, Phrozen Sonic range, and Bambu printers. You will need to dial in exposure settings for your specific printer using a calibration print before doing full production runs.