The first sample of a custom acrylic display is wrong more often than it is right, and the reason is almost never the acrylic. It is the file. Print artwork built for a printed brochure, handed to a factory that is going to cut, bend, bond and decorate a three-dimensional object, will produce something that looks broadly like the design and is unusable in a store.
This is a process problem with a cheap fix. Acrylic display factories work to a narrow set of file conventions, and a buyer who supplies files in those conventions removes an entire revision round from the schedule. Below is what to prepare before you send anything.
Why the first sample comes back wrong
Three failures account for most of it. The artwork was supplied as a flat picture of the finished display rather than as a set of surfaces the factory can map onto its cutting file, so the factory has to guess where each element sits on each panel. The colours were specified in a way that cannot survive the chosen decoration method. Or the design assumed the printed area meets the edge of the panel exactly, which nothing in a physical process ever does.
None of these are exotic manufacturing constraints. They are the same constraints any printer works under, applied to a substrate that is transparent, that gets cut and folded after printing, and that will be viewed from both sides. A Shenzhen specialist such as Yixinheng Acrylic quotes sampling in about seven days, which is fast enough that file problems, not factory speed, become the limiting factor on your timeline.
Vector, raster, and the resolution that matters
Send vector wherever the artwork is vector. Logos, type, rules, icons and die lines should arrive as editable vector paths in AI, PDF or EPS, because the factory may need to scale a panel, adjust a bend allowance, or separate a colour for screen printing — all of which destroy a rasterised logo and cost nothing on a vector one.
Photographic content is necessarily raster, and the number to work to is the final printed size, not the file's nominal resolution. A background image at 300 dpi at A4 is a 72 dpi image once it is enlarged onto a 1,200 mm panel. Displays are usually viewed from a metre or more away, so 150 dpi at final size is generally acceptable for large panels and 300 dpi is the safe figure for anything a customer holds or reads closely.
Convert all type to outlines before sending, or supply the font files. Missing fonts substituted silently by the factory's software is a common and entirely avoidable way to lose brand typography, and it is the single most frequent difference between the approved proof and the delivered piece.
Colour: Pantone, CMYK and what acrylic does to both
Specify brand colours as Pantone references and supply the CMYK build you consider acceptable. The two are not interchangeable: many Pantone colours, particularly saturated oranges, deep blues and greens, sit outside the CMYK gamut and cannot be reproduced in process printing at all. Deciding in advance which brand colour must be matched exactly, and which may be approximated, is a decision you should make rather than the factory.
Acrylic complicates this further because the substrate is usually not white. On clear acrylic, ink is translucent and the colour behind it — the shelf, the wall, the shopper — shows through, so a printed area that needs to read as opaque requires a white ink layer beneath it. That white underbase must be specified and drawn; it is a separate layer in the file, not something the factory adds by instinct. On coloured or frosted acrylic, the substrate tint shifts every printed colour on top of it.
Where an exact match matters, ask for a printed colour draw-down on the actual substrate before the full sample. Judging colour from a screen, or from a proof on paper, will mislead you about how it behaves on a transparent sheet.
Choose the decoration method before you build the file
The file you build depends on how the graphic will be applied, so settle this first. Broadly there are three routes, and each wants something different from the artwork.
UV printing deposits ink directly onto the sheet and handles photographic images, gradients and many colours in one pass. It is the flexible option and the usual choice for short runs and complex artwork. It needs a full-colour file at final size plus, on clear stock, an explicitly drawn white underbase layer.
Screen printing pushes ink through a mesh, one colour per screen. It gives dense, durable, opaque colour and matches spot colours well, which suits bold logos and solid blocks, but the cost scales with the number of colours and it will not reproduce a gradient cleanly. It needs the artwork separated into named spot colours with no unintended blends.
Applied vinyl is a cut or printed film laid onto the acrylic. It suits large solid areas and allows changes without reprinting the substrate, but it has a visible edge and is the least durable of the three under cleaning. It needs clean cut paths.
Ask which of these the factory runs in-house and which it subcontracts, since that affects both turnaround and who is accountable when the colour is off. It is the same category of question as asking about order quantities and how they are structured — the answer shapes the design, not just the price.
Bleed, tolerance and the safe area
Physical processes have tolerance, and your file has to absorb it. Extend any artwork intended to reach a panel edge at least 3 mm beyond the trim line so that a small cutting variance shows more artwork rather than a white sliver. Keep type, logos and anything that must not be clipped at least 5 mm inside the trim line.
Two constraints are specific to acrylic and catch people out. Where a panel is heat-bent, the bend consumes material and distorts a band of artwork on either side of the fold, so keep critical elements clear of bend lines and mark every bend on the die line. And where panels are bonded, the adhesive joint and any radius at the corner will cover a few millimetres of the adjoining surfaces.
Draw the die line as a separate, clearly named layer showing cut, bend and bond lines in distinct spot colours, with the artwork positioned against it. A factory that receives artwork and a die line as separate correlated layers can proceed; a factory that receives a flattened image has to reconstruct your intent.
Panel thickness interacts with all of this, because thicker sheet means a larger bend radius and a wider distorted band — worth settling alongside the structural decisions covered in our acrylic thickness spec guide.
The handoff pack
A complete first submission contains: a flat die line with cut, bend and bond lines on separate named layers; artwork in position on that die line, vector where vector exists; raster elements at final size and adequate resolution; fonts outlined or supplied; brand colours listed as Pantone references with acceptable CMYK builds; the white underbase drawn as its own layer where the stock is clear; a labelled 3D visual or reference photograph showing the intended assembled result; and a short written note stating the substrate, thickness, decoration method and finish.
Send that pack once, complete, rather than in instalments. Partial submissions generate partial samples.
Then plan the review the way you would any other inspection. Check the physical sample against the file rather than against your memory of the design, using the same discipline as an acrylic display inspection checklist, and confirm the approved sample is retained by both parties as the production reference. Downstream, artwork decisions carry into retail and FBA packaging, into tariff and import handling, and into the document set you request before a first order. The file is where a display programme is actually specified; everything after it is execution.
Buyers comparing suppliers on quoted lead times often find the quoted figure is honest and the real schedule is longer — because the clock did not start until the third revision of the artwork. Fixing the file fixes the schedule.
Common questions
What file format should I send an acrylic display factory?
Send editable vector files in AI, PDF or EPS for logos, type, rules and die lines, with any photographic elements embedded as raster artwork placed at the size it will actually be printed, because vector geometry is what the factory needs in order to scale a panel or separate a colour. Vector lets the factory scale panels, adjust bend allowances and separate spot colours without degrading the artwork, which a flattened JPEG or PNG makes impossible.
Include a layered file rather than a flattened one, and name the layers for cut, bend, bond, artwork and white underbase.
What resolution do acrylic display graphics need?
Resolution should be judged at the final printed size rather than at the file's original dimensions, and 150 dpi at final size is generally sufficient for large panels viewed from a metre or more away, while 300 dpi at final size is the safe figure for small panels or anything a customer reads at close range. An image is only as good as its enlarged state.
Check by measuring the placed image in the layout, not by trusting the resolution reported by the original photograph.
Why does my logo colour look wrong on clear acrylic?
Ink printed on clear acrylic is translucent, so whatever sits behind the panel shows through and shifts the perceived colour, which is why a logo that looks correct on paper can look washed out or contaminated on a transparent sheet. The fix is a white ink underbase printed beneath the coloured artwork, and that layer must be drawn explicitly in the file.
Ask for a draw-down on the actual substrate before approving colour, because screen and paper proofs both mislead here.
How much bleed does an acrylic display need?
Allow at least 3 mm of bleed beyond every trim line wherever artwork is intended to reach the edge of a panel, and hold type, logos and any other element that must not be clipped at least 5 mm inside that same trim line so that normal cutting variance stays invisible. Cutting has tolerance, and bleed converts a visible white edge into a slightly larger printed area that nobody notices.
Add extra clearance either side of any heat-bend line, since bending distorts a band of artwork that no amount of bleed will correct.
Should I choose UV printing or screen printing?
UV printing suits photographic images, gradients and multi-colour artwork in short runs because it prints the whole design in one pass, while screen printing suits bold spot-colour logos and solid blocks in larger runs because it lays down denser, more durable ink but charges per colour. The decision should be made before the artwork is built, since each method needs a differently prepared file.
If the design mixes a photographic panel with a solid brand block, ask whether the factory will combine methods rather than forcing one route.