Label Materials: Paper, BOPP, PE and PET

Start with the container and the label's job

Label material selection is a system decision, not a single swatch choice. A typical liner-backed pressure-sensitive label includes a face stock, adhesive and release liner. The face stock contributes to appearance and mechanical behavior; inks, coatings and adhesive also affect finished-label performance. The adhesive contributes to bonding, and the liner and release system affect dispensing. Evaluate the complete construction with your converter.

Application surface energy matters. Avery Dennison's technical guidance describes PET and glass as high surface energy surfaces that adhesives can wet and bond to more readily, while HDPE is a low surface energy surface that presents more of a bonding challenge. That does not make one container good or bad. It means the adhesive and the face stock stiffness need to match the container, especially on curved, squeezable or dirty surfaces.

Paper face stocks: print friendly, exposure limited

For paper labels, compare coated and uncoated samples for the appearance and text quality you need. Consider paper as a candidate for dry goods, cartons and promotional labels, but ask for grade-specific information if moisture, abrasion or flexing is expected. The cited sources do not establish performance limits for paper face stocks.

Do not decide chilled or damp suitability from the word paper alone. Ask the converter whether a paper construction, including any protective coating and adhesive, can be validated for your conditions. For self-printed Amazon barcode labels, Amazon's cited prep guidance calls for black ink on non-reflective paper with adhesive backing, sized 1 to 2 inches tall and 2 to 3 inches wide. It recommends a laser printer at 300 DPI for best results and placement on a smooth, flat surface away from corners, edges and curves. Confirm the current requirements for your barcode type in Seller Central before production.

BOPP: evaluate film grades for the container

BOPP means biaxially oriented polypropylene. Ask the converter which white or clear label grades are available and whether they suit your beverage, personal care or household container. Do not assume that a BOPP grade will follow repeated squeezing: request grade-specific stiffness, thickness and exposure information, then test the finished label.

BOPP is not one specification. Print method, topcoat, adhesive and liner all change how a BOPP label performs. A clear BOPP label on a clear bottle can look like direct print, but the adhesive must remain clear and the print must be designed for the film. Ask for a sample on your actual container and check edge lift, scuffing and legibility after handling.

PE: evaluate conformability on flexible packs

Ask your converter to evaluate polyethylene face stock for squeeze tubes, flexible pouches and containers that deflect under hand pressure. Compare the offered grade's thickness, stiffness and conformability with the alternatives rather than ranking materials by polymer name alone. Test for wrinkling and edge lift during repeated flexing.

Ask which PE grades, colors and print methods the converter offers, and confirm compatible inks and any overlaminate. Describe hot filling, heat tunnels or high-temperature washing before selection; suitability requires data for the exact construction and exposure. Plan validation on representative filled packs, not only empty sample bottles.

PET: evaluate grades for demanding labels

Consider asking about PET, or polyethylene terephthalate, for durable goods and equipment labels. For heat or chemical exposure, request data for the exact face stock, print, coating and adhesive combination. The cited sources do not establish PET face-stock performance limits or a universal stiffness ranking. Ask which grades, appearances and compatible print methods the converter offers.

Do not treat PET as a default upgrade. Ask the converter to assess the offered construction on the actual panel or curve, including any squeezing during use. Inspect samples for curling, wrinkling, edge lift and legibility; stiffness alone does not guarantee any of these outcomes.

Match adhesive and application conditions

Face stock is only half the choice. Avery Dennison's ASEAN technical guide notes that moisture, dirt and dust on a substrate affect bonding and that an adhesive with higher initial tack may be considered in such conditions. It also separates application temperature from service temperature. The guide describes most of its adhesives as designed for ambient conditions with a minimum application temperature of +5°C, and standard service temperatures from -20°C to +80°C, with specialty adhesives extending those ranges.

Use those figures as a prompt to ask questions, not as a universal rule for every label. Your converter should confirm the adhesive data for the exact product, the container surface and the expected temperature cycle. If the label is applied cold, stored frozen, microwaved, retorted or exposed to steam, say so early. Those conditions can change the adhesive, face stock and test plan.

Worked example: estimating label area for a simplified bottle

Suppose a hypothetical 500 mL shampoo bottle has a cylindrical label panel with a 70 mm diameter and a 90 mm label height. A rectangular label wraps 300 degrees, leaving a 60-degree uncovered sector. This geometry exercise is not a dieline: it excludes bleed, production tolerances, taper, compound curvature and adhesive selection. Nominal bottle capacity is not used in the calculation.

Circumference equals pi multiplied by diameter. Using 3.1416, 70 mm multiplied by 3.1416 equals 219.91 mm.

Wrapped length equals circumference multiplied by 300 divided by 360. Retaining the unrounded circumference, 219.912 mm multiplied by 300/360 equals 183.26 mm.

Label area equals wrapped length multiplied by height. 183.26 mm multiplied by 90 mm equals 16,493 square millimeters, or about 164.9 square centimeters per label.

For 1,000 labels, multiply 164.9 square centimeters by 1,000 to get 164,900 square centimeters, which is 16.49 square meters. Add a hypothetical 8 percent allowance for waste: 16.49 square meters multiplied by 1.08 equals 17.81 square meters. Real waste depends on the press, matrix and layout. Order from a converter's actual dieline and material yield, not from this estimate.

Decision table: shortlist by use condition

Use this table to prepare a converter conversation. It is a shortlist, not a specification. The final choice depends on the exact container, adhesive, print method, liner and test results.

Practical checklist before you order

Run this checklist as an editorial planning framework. The sources noted below cover specific principles, not every item in the list.

• Name the container material and surface finish. PET and glass are high surface energy surfaces; HDPE is low surface energy. Ask the converter to match the adhesive.
• State the application temperature and the full service temperature cycle, including storage, transport and use.
• Describe moisture, condensation, steam, cleaning chemicals, abrasion and flexing.
• Confirm the print method, ink, varnish or overlaminate and whether the label will be clear or white.
• Check barcode size, contrast and placement on a printed sample; do not rely on a screen proof.
• Ask for a sample on your container and run a simple trial: apply, wait, squeeze, chill, abrade and inspect.
• Confirm whether setup, plate or tooling fees apply; Teal does not charge these fees, while some other suppliers may.
• For regulated products, route food contact, child resistant or hazardous claims to a qualified reviewer; this guide does not determine compliance.

Scope limits

This guide covers common pressure-sensitive label face stocks and planning questions. It does not provide a dieline, a material specification, a food contact determination, a hazardous goods classification or a performance guarantee. It does not cover all specialty films, direct print, shrink sleeves, in mold labels or wet glue labels. Amazon, carrier and marketplace requirements can change; confirm them in your own account or agreement. Adhesive and temperature data must come from the converter's current technical data sheet for the exact product. Samples are for evaluation, not a substitute for validation testing.

Questions about label face stock selection