Custom Label Buying Guide: Facestock, Adhesive, Roll Direction and Print Method

A label is four decisions stacked on top of each other — what it is made of, what sticks it down, how it is printed, and how it is wound. Get any one of them wrong and the label falls off in a cooler, smears in a warehouse, or arrives on a roll your printer cannot feed.

None of these decisions are difficult. They just get skipped, because most label quotes start and end with a size and a quantity.

Facestock — what the label is made of

Facestock	Use it for	Where it fails
Paper (uncoated, semi-gloss, litho)	Shipping labels, carton marking, warehouse and inventory labels, short-life indoor use. Cheapest by a wide margin.	Moisture, oils, abrasion, outdoors. Paper tears, wicks and goes translucent when wet.
BOPP (biaxially oriented polypropylene)	Product labels, bottles and jars, anything that gets wet or handled. Available white, clear and metallized. The default upgrade from paper.	Sustained high heat and aggressive solvents. Not the choice for a label that has to survive years outdoors.
Polyester (PET)	Asset tags, rating plates, equipment and serial labels, high-temperature service, chemical exposure, anything that has to last the life of the machine.	Cost, and it does not conform well to tight curves or irregular surfaces.
Vinyl	Outdoor signage and marking, safety and pipe marking, curved and irregular surfaces, drums and totes. Conformable and UV-tolerant.	Cost, and it can shrink over time depending on the construction.

The honest default: paper for anything that ships once and gets thrown away, BOPP for anything on a product a customer sees, polyester or vinyl only where the environment genuinely demands it. Most over-specification in labels happens at the facestock.

One thing worth naming: clear BOPP looks premium on a bottle, but it shows every application flaw and it needs a specific adhesive to avoid a visible halo at the edge. If you are going clear, ask for a sample applied to the actual container before you commit to a run.

Adhesive — the part that actually fails

Adhesive is chosen against the surface, the temperature at the moment of application, and the temperature in service. Those are three different questions and the second one catches people.

• Permanent. The general-purpose adhesive. Builds to a full bond over roughly a day and is not meant to come off cleanly after that. Correct for most shipping, product and identification labels.
• Removable. Designed to peel cleanly off a smooth surface without residue, within a reasonable window. Promotional labels, temporary marking, anything applied to a product the customer will remove. It is not permanent adhesive with less tack — it is a different chemistry, and it will fail if you use it on a rough or porous surface.
• Freezer and cold-temperature. Two separate specifications hide under this heading. A freezer-grade adhesive stays bonded once applied and then frozen. An all-temperature or sub-zero application adhesive can be applied to an already-cold, possibly frost-covered surface and still grab. If your labels go on product that is already in the cooler, you need the second one, and a standard freezer label will not do it.
• High-tack. For corrugated, recycled kraft, powder-coated metal, textured plastics and anything dusty. Recycled corrugated in particular has a loose, fibrous, low-energy surface that a general-purpose permanent adhesive will release from — often after a day, which means the label is on the box when it leaves you and off the box when it arrives.
• Repositionable. Low initial tack, builds over time. Useful where application accuracy matters and the operator needs to be able to lift and reseat.

The mistake: diagnosing an adhesive failure as a facestock problem. If labels are falling off recycled cartons, moving from paper to BOPP will not fix it. The adhesive is the variable. Ask for high-tack and ask for a sample to test on your actual carton stock.

Also worth checking: whether the surface is clean, and whether anything was sprayed on it. Mold release on plastic parts and residual oil on metal will defeat any adhesive on this list.

Roll vs. sheet vs. fanfold

Rolls are what any automatic applicator or thermal printer uses, and they are cheaper per label at volume. If labels are printed on demand or applied by machine, this is not really a choice.

Sheets make sense for low volume, hand application, office laser printers and anything where a roll would sit half-used for a year. They cost more per label and they waste the sheet margins.

Fanfold is a continuous stack rather than a roll. It runs on printers that accept it, holds a much larger quantity per box than a roll of the same footprint, and does not have core or outside-diameter limits. Worth asking about on high-volume shipping label applications.

Core size, roll diameter and unwind position

These three specs are the ones most often left off a quote request, and getting them wrong produces a technically correct label that will not run.

Core size is the inside diameter of the cardboard core. Desktop thermal printers generally take a 1" or 1.5" core; industrial printers and applicators generally take 3". Check your printer, do not assume.

Maximum outside diameter (OD) is how big the finished roll can be before it will not fit in the printer. This, together with core size and label height, is what determines labels per roll — not your preference. If you want more labels per roll than the printer will hold, you need a different printer or a fanfold.

Unwind position describes how the label is oriented as it comes off the roll. The industry numbers eight of them:

• Positions 1 through 4 are wound with the printed face out.
• Positions 5 through 8 are wound with the printed face in.
• Within each set, the sequence is the same: the first position leads with the top of the copy, the second with the bottom, the third with the left side, the fourth with the right.

So position 1 is face-out, top of copy leaving the roll first. Position 4 is face-out, right side first. Position 5 is face-in, top first. Most thermal printers want face-out; most automatic applicators have a required position dictated by the machine and the orientation of the product going past it.

The mistake: ordering a reprint from an old part number without checking the unwind, after the applicator has been changed or moved. The labels arrive correct and rotated 90 degrees from what the machine needs, and there is no fixing it on your end.

The easy way to avoid all of this: send us the printer or applicator make and model. The core, OD and unwind fall out of it.

Print method

Direct thermal uses heat-sensitive facestock and no ribbon. Fewer consumables, less to go wrong, and the image fades with heat, light, friction and time. It is right for shipping labels, pick tickets, receipts — anything with a life measured in days or weeks. It is wrong for anything stored in a warehouse for a year, left in a truck in summer, or scanned repeatedly, because a faded barcode is an unscannable barcode.

Thermal transfer uses a ribbon to transfer pigment onto the facestock. It costs more per label and the image is durable. It is the correct choice for asset tags, product identification, anything that outlives the shipment, anything outdoors, and anything on a synthetic facestock. The ribbon has to be matched to the facestock — wax for paper, wax-resin for coated paper and light synthetics, full resin for polyester and harsh environments. A resin ribbon on plain paper and a wax ribbon on polyester will both disappoint.

Flexo is a plate-based press process, and it is how labels get made in volume. Excellent color, tight registration, wide range of facestocks and finishes, very low cost per label once you are running. It carries a one-time plate charge per color and a minimum run quantity. This is the choice for product labels, branded packaging, and anything where the artwork is fixed and the quantity is real.

Digital sits between them — no plates, so short runs and frequent artwork changes are economical, at a higher per-label cost than flexo at volume. Worth asking about when you have many SKUs in small quantities.

The combination most operations actually want: preprinted flexo or digital labels carrying the fixed artwork, overprinted on demand with thermal transfer for the variable data. You get the color and the branding without reprinting artwork every time a part number changes.

When a die charge applies

Labels are cut with a die. Converters keep a large library of standard dies — common rectangles, squares, circles, ovals and rounded-corner rectangles in standard sizes — and if your label matches one of those, there is no tooling charge.

A die charge applies when the shape or size is not in the library: a custom outline, an unusual size, a specific corner radius, a slit or a hole, or a shape that follows product artwork. It is a one-time charge — you pay it on the first run and not on reorders, as long as the die is retained.

Worth asking on every quote: “is there a standard die close to this size?” Moving an eighth of an inch to land on a stock die often removes the tooling charge entirely and changes nothing about the label. It is the single easiest cost to take out of a first order.

Print plates are separate from dies and are charged per color. Both are one-time. Ask for them as separate line items so you can do the math on the reorder price rather than the first-run price.

GHS, BS5609 and durable labels

If a label identifies a hazardous chemical, it is a regulated document and not a design decision.

GHS — the Globally Harmonized System — governs what goes on a chemical container label: pictograms, signal word, hazard and precautionary statements, product identifier, supplier identification. The relevant part for a buyer is that the label has to remain legible and attached for the life of the container, through whatever the container goes through. In practice that means a synthetic facestock and a durable print method, not direct thermal on paper. Preprinted red-bordered GHS blanks that you overprint with variable data are a common and sensible approach.

BS5609 is the standard for labels on containers shipped by sea, and it is the one people most often misunderstand. It has sections, and they test different things:

• Section 2 tests the facestock and adhesive together — the label has to survive a long immersion in seawater and still adhere and stay legible.
• Section 3 tests the printed image — abrasion and durability of the print after that exposure.

The important consequence: Section 3 certification applies to a specific combination of label material, ribbon and printer. Buying a BS5609-certified label stock and running it with whatever ribbon is in the drawer does not give you a compliant label. If you need BS5609, ask the supplier for the certified material, ribbon and printer combination in writing, and match it exactly.

Other durability specs that show up in industrial work: UL and CSA recognition for equipment rating plates, chemical resistance to a specific list of solvents, and outdoor weathering ratings. All of these live on the material spec sheet. If durability matters, ask for the spec sheet rather than a verbal assurance — the sheet states the temperature range, the application temperature minimum and the service life, and those are the numbers that settle the argument.

What to have ready for a quote

• Label size and shape, and whether the size is fixed or has a little room to move onto a stock die.
• What it goes on — the actual material and surface texture, not just “a box” or “a bottle.”
• The environment — temperature at application, temperature in service, moisture, chemicals, UV, abrasion, and how long it has to last.
• Quantity, annual and per release.
• How it is applied — by hand, by a printer-applicator, by a specific machine. Make and model if there is one.
• Printer make and model if you are printing them yourself, so core, OD and unwind are correct.
• Artwork — number of colors, whether there is variable data, and whether the file is print-ready.
• Any regulatory requirement — GHS, BS5609, UL, food contact, customer-mandated specs.
• A sample of the current label if you are replacing one, and a sample of the surface if adhesion is the concern.

That last one is worth more than the rest combined when something has been failing. An adhesive problem gets solved by testing on the real surface, not by reading a data sheet.

Where Supply Tie fits

Supply Tie is a distributor. We work with the converters that print and die-cut this material rather than ordering off a stock list, so the facestock and adhesive recommendation is driven by your application rather than by what is already on a shelf, and the questions above get answered by people who run the press.

Stock shapes, custom dies, single-color warehouse labels, multi-color product labels, GHS and durable materials, and preprinted stock for overprinting all go through the same quote.

If you are not sure what the job wants, tell us what it goes on, what it goes through, how many you need and how they get applied — and send a sample of the surface if anything has been falling off. We will spec it.

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