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Decoration & Branding · Checklist

Artwork for Glass: 5 Checks Before You Send the File

Reviewed September 7, 2026 · 2 min read

Artwork made for print fails on glass for predictable reasons. Vector formats, Pantone on a curve, minimum line weight, seam clearance and how to mark a proof.

Artwork that prints perfectly on a carton can fail on a bottle for reasons that have nothing to do with the design. Glass curves, carries a tint, has seams, and every decoration process cuts your file into tooling rather than reproducing it.

The 5 Checks Before You Send Anything

CheckWhat to confirmWhat it prevents
Vector artworkAI, EPS or PDF, with fonts converted to outlines.Someone tracing your logo and guessing at the curves.
Named coloursPantone references plus a physical sample where it matters.A colour approved on paper that fires to a different shade.
Line weightEvery stroke thick enough to survive a mesh or a die.Hairlines that print broken or vanish completely.
Panel and seam clearanceYour mark placed inside the printable area on the drawing.A break running through your logo at the parting line.
Bleed and positionWhere the artwork sits vertically and how far it wraps.A design cropped by the shoulder or misplaced on the body.

Why Glass Changes Your Colour

Your bottle is a filter. Standard flint carries a faint green in thick sections, extra-flint reads water-white, and amber changes everything printed over it.

Firing changes it again on ceramic processes, since pigments shift in the lehr. So approve colour on a fired sample on your own glass. SGSBOTTLE proofs artwork in Shandong, where 14 forming lines feed the same site, so what you sign is what your run produces.

Printed and decorated bottles on a decorating lineProofing happens on your own glass at the SGSBOTTLE site in Shandong, beside 14 forming lines.

How Each Process Reads Your File

A screen turns your artwork into open and blocked mesh, so it wants flat spot colours and clean edges. A decal prints the whole image at once, so it welcomes gradients and photographs.

A hot-stamping die is cut as a solid relief, so it takes shapes and refuses tone. And an embossing tool goes into steel, where depth, radius and draft all constrain what your letters can look like on a 500 ml (17 oz) body.

Marking Up a Proof So It Helps

Vague feedback costs a round of samples. Mark the proof itself: circle what is wrong, name the colour you expected, and state the dimension you want rather than saying a mark looks small.

Keep one signed physical sample as the reference. Every later run gets judged against that bottle, and a 750 ml (25 oz) sample in a drawer settles arguments that email cannot.

What Slows a Project Down Most

Three things, in order. Raster logos, because someone has to redraw them and you then approve a trace rather than your own mark. Colours named by description instead of by reference. And artwork placed without the drawing, so the panel and seams get discovered at proofing.

Sending all three correctly the first time is usually worth more to your timeline than any process choice. SGSBOTTLE issues the drawing with the panel and seams for glass from 14 lines in Shandong and Xuzhou, before artwork is placed.

What Goes on Your Enquiry

Vector artwork with fonts converted to paths, Pantone references, the panel and position you want, and the format in ml and oz. SGSBOTTLE comes back with a marked drawing, a proof on your own bottle and the minimum for your project.

Questions Buyers Ask Before They Order

What file format should artwork for glass be?

Vector, as AI, EPS or PDF with fonts converted to outlines. Screens, dies and embossing tools are all cut from clean paths, so a raster file forces someone to trace your logo and guess at the edges.

Why does a Pantone colour look different on glass?

A chip is printed flat on paper, while your bottle curves and carries its own tint. Flint, extra-flint and amber each shift the same code, so approve colour on a fired sample rather than on a chip.

What is the minimum line weight for printing on glass?

Thicker than print will let you go. A mesh cannot hold ink in a line finer than its threads, so hairlines break up, and a stroke you can feel on a 330 ml (11 oz) bottle reproduces reliably.

How do you keep artwork off a mould seam?

Ask for the seam positions on the drawing, then set your printable panel inside them. A mark crossing a parting line shows a break in the ink or a ridge under a label.

Bottles and Jars This Applies To

Start the Project With the Numbers in Front of You

Drawings, decorated samples, mould pricing, test reports and the loading plan for your cartons. Every figure on this page is on the quotation before you commit a container.

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