Manufacturing process
Custom dye-sublimation keycaps.
Dye-sub is the process for artwork — gradients, scenes and full-surface designs that molding can't do. We dye it into PBT so it can't rub off, at a lower minimum and faster sampling than double-shot.
Process: dye diffused into the plastic by heat — inside the cap, not printed on top. Material: PBT (required). MOQ: 500 sets. Sampling: 3–5 days. Production: 15–20 days (standard orders). Colors: gradients, multicolor art, full-surface designs; reverse dye-sub for light-on-dark. Best for: artwork sets, group buys, novelties, faster and smaller runs.
How dye-sublimation works
Heat turns solid dye into gas, which diffuses below the surface of a PBT cap and sets as it cools. The legend or artwork ends up inside the plastic, not layered on top like pad printing — so it can't peel, chip or rub off with use. Because it is a printing process, switching a design costs minutes, not tooling.
What dye-sub is best for
- Artwork-driven sets — gradients, landscapes, full-surface illustrations and novelty caps that molded legends can't reproduce.
- Group buys and first runs — the lower 500-set minimum and fast sampling suit demand validation.
- Frequent design changes — no per-design tooling, so a new colorway is quick and inexpensive.
Why dye-sub needs PBT
The dye needs a plastic that survives the heat of the process, and PBT does — ABS deforms at those temperatures. This is why dye-sub sets are always PBT, and why buyers who need ABS look to double-shot or printed processes instead.
Reverse dye-sub for light legends
Standard dye-sub can only darken, so legends must be darker than the cap. Reverse dye-sublimation flips this: we dye the entire surface around the legend, leaving the legend in the base color. That gives you dark caps with clean light legends at dye-sub economics, instead of paying for double-shot.
MOQ and lead time
Dye-sub runs at an MOQ of 500 sets with 3–5 day sampling, because there is no per-legend tooling. That is the main reason it is the friendlier process for smaller and first-time runs — the full comparison is in double-shot vs dye-sub, and minimums across processes are in our MOQ guide.
For buyer-focused supplier information, see dye-sub keycap manufacturer.
FAQ
What is the MOQ for dye-sub keycaps?
500 sets. Legends are printed, not molded, so there are no per-legend mould inserts and the minimum is far lower than double-shot.
How long does dye-sub sampling take?
About 3–5 days, since no tooling is needed to change a design. Production time is confirmed with the quote.
Can dye-sub print light legends on dark caps?
Only reverse dye-sub can — it dyes everything except the legend, leaving the legend in the base color.