What a domed label actually is
Pick up a modern appliance, a power tool or a set of car keys and you will often find a small badge with a glossy, raised surface that looks like glass and feels soft when you press it. That is a domed label: a printed sticker covered with a clear layer of resin that cures into a smooth lens. The dome magnifies the print slightly, deepens colours and protects the surface from scratches, water and handling.
Domed labels go by several names: 3D stickers, resin badges, epoxy stickers, gel labels. They cost more per piece than a flat laminated label and take longer to make, so the useful question is where they earn that extra cost. This guide explains how doming works, what the design limits are, and which applications suit it.
How the doming process works
The base label
A domed label starts as an ordinary printed label, usually on a white, clear or metallic vinyl or polyester film with a permanent adhesive. The label is printed, then kiss cut to its final shape on the backing liner. Kiss cutting cuts through the label film but not the liner, so each shape sits separately on the sheet with a gap around it. If you are not familiar with the term, our guide on roll labels and sheet labels explains how labels are presented on the liner.
Applying the resin
Liquid resin is dispensed onto each label, either by hand for very small runs or with an automated dispensing machine that follows the label outline. Surface tension holds the liquid at the cut edge of the label, which is why it forms a rounded dome instead of running off. The amount of resin and the shape of the label determine the height of the dome.
Curing
The sheets are left on level racks while the resin cures. Depending on the resin and the conditions, this can take several hours to a full day before the labels can be handled and packed. Dust control matters in this stage, since anything that lands on wet resin is sealed in permanently.
Polyurethane or epoxy resin
Although the labels are often called epoxy stickers, many producers use polyurethane (PU) resin for doming. The two behave differently.
| Property | Polyurethane | Epoxy |
|---|---|---|
| Feel | Flexible, slightly soft | Harder and more rigid |
| Curved surfaces | Bends to follow gentle curves | Better on flat surfaces |
| Outdoor exposure | UV-stable grades resist yellowing | Can yellow over time in sunlight |
| Self-healing | Small dents often recover | Marks tend to stay |
For most product badges, PU is the default. Epoxy is still used for some indoor items and for very hard, glassy finishes on flat surfaces. Ask the producer which resin they use and whether it is rated for outdoor or UV exposure if the badge will live outside.
Designing for a dome
The physics of liquid resin sets some firm rules on shape and artwork.
Shape
- Rounded outlines work best. Circles, ovals and rectangles with rounded corners dome evenly. Sharp outer corners may not fill completely.
- Avoid inside corners and thin spikes. Narrow points, star shapes and deep notches leave areas where the resin pulls back or overflows.
- Keep sizes moderate. Doming suits small labels. Very large labels form a flatter dome and are more prone to bubbles and uneven surfaces.
- No holes inside the label. A cut-out in the middle of a design (such as the centre of a letter O cut away) is difficult to dome.
Artwork
- The dome magnifies slightly towards the edge, so keep text and small details a few millimetres inside the outline.
- Very fine lines and tiny text can distort near the curved edge. Keep critical information in the flat centre.
- Metallic base films (chrome, gold, brushed silver) look particularly striking under resin. If you want parts of the design to show the metallic film, the printer needs a white ink layer under the opaque areas; mark it as a separate layer in the file.
Where domed labels make sense
Doming adds cost, so it pays off where a label is handled often, needs to look premium or has to survive knocks and cleaning.
- Product badges on appliances, audio equipment, tools, furniture and machinery, where the badge has to look like part of the product.
- Key fobs and key rings with a printed insert that gets handled every day.
- Branded merchandise such as phone cases, laptop badges and drinkware lids. For comparison with other decoration methods, see our article on printing on promotional items.
- Bicycle, sports and outdoor equipment, using UV-stable PU.
- Premium packaging accents, for example a domed logo on a gift box or a special edition media case.
When a flat label is the better choice
If a label needs to wrap around a tight curve, cover a large area or carry a lot of small text, a laminated flat label is usually more practical. Our guides to durable label materials and labels for bottles and jars cover those options.
Application and surfaces
A domed label is only as good as its adhesive bond. The surface should be clean, dry and free of grease, and textured or powder-coated surfaces may need a stronger adhesive. Some low-energy plastics such as polypropylene and polyethylene are hard to bond to, and a high-tack adhesive is the usual answer. Apply the label with firm pressure on the edges, never on the centre of the dome, and allow the adhesive time to build its full bond before the item is used or cleaned.
Domed labels are thicker than flat labels, so check that the badge will clear any lid, moving part or packaging that closes over it.
Common problems and how to avoid them
- Bubbles in the dome. Usually caused by moisture, mixing or dispensing too fast. A good producer degasses the resin and inspects every sheet before it is packed.
- Resin spilling over the edge. Happens with sharp corners, very narrow parts of the shape or labels that are too close together on the sheet. Rounding the corners in the design is the simplest fix.
- Yellowing after a season outside. A sign of a resin that is not rated for UV. Specify outdoor use when ordering.
- Edges lifting. Often an adhesive mismatch with the surface, or pressure applied to the dome instead of the edge during application.
Lead times and quantities
Because of the curing stage, domed labels take longer to make than flat labels. Plan for a few extra days on top of normal label printing, and more for large quantities. Minimum quantities vary by producer and shape; small runs are possible, but the set-up of the dispensing program means the price per label drops noticeably as quantities rise. Ask for a sample on your actual surface before ordering a large run, especially if the item will be used outdoors or cleaned with chemicals.
Ordering domed labels from us
We produce domed labels on white, clear and metallic films with UV-stable polyurethane resin, from short sample runs to large production quantities. Send us your artwork, the size and the surface the label will go on, and our team will check the shape and detail for doming, suggest a base film and adhesive, and supply a physical sample before the full run if you need one.
Browse our print materials range, or contact us with your quantity and a photo of where the label will be applied, and we will come back with a recommendation and a quote.
