UV printing on bare and brushed stainless steel

Tags, plates, panels. What the printer and primer makers publish about bare and brushed stainless steel: primer, white ink, flat or rotary, how long prints last and what goes wrong.

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Desktop UV: With prep
Primer: Needed
White ink: On dark or clear
Shape: Not stated

Metal and coated metal. Things people make: tags, plates, panels. From the sources at the end, checked October 11, 2026; we haven't tested it ourselves.

What it needs

Desktop UV printers: With prep eufyMake, xTool, Roland, Mimaki and Inkcups all say stainless steel needs a primer or flame treatment for ink to stick. [2] [7]
Primer or adhesion promoter: Needed. Metal adhesion promoter wiped on, for example eufyMake UV Adhesion Promoter prep pads for metal, xTool Metal Primer, Inkcups MetalBond (Inkcups also recommends flame treatment first) or Procolored UV metal pretreatment liquid. [1] [2] [3] [4] [5] [6] [7] [8]
White ink: On dark or clear. eufyMake says dark metals need a white layer underneath; it does not say bright steel needs one. [2]
Flat or curved: Not stated

How long it lasts

Scratches and wear: xTool: with primer, scratch resistance is enough for daily use, but not for keys, blades or sanding. [4]

What goes wrong

Skipping the primer is the number one reason prints peel (eufyMake, about stainless steel tumblers).
Highly polished steel can reflect UV light and affect print quality (eufyMake).
Roland says not to use primer on mirror-finish surfaces, because it can clog nozzles.

[1] [2] [5]

Before you print

Use metal-only prep pads on metal only; eufyMake says not to cross-use them on other materials.
Degrease and wipe with isopropyl alcohol first, and keep bare hands off the cleaned surface (Roland, xTool).
Mimaki says to consider plasma treatment or a commercial primer for cast or extruded metals.

[3] [4] [5] [6]

Supplies

Look for an adhesion promoter sold for UV printing on bare and brushed stainless steel, and read its data sheet for how long to let it dry: adhesion promoter (Amazon US), adhesion promoter (Amazon UK). Clean with isopropyl alcohol wipes first. Test one piece before a batch.

Every material in one table: what a UV printer can print on. Weighing up other machines? See UV against DTF, sublimation and a Cricut.

Has a maker published something different, or does your printer's manual disagree? Email hello@homeuvprinter.com and we'll check it against the source.

Sources

Checked October 11, 2026.