Key Takeaways
- The passport is data; the carrier is hardware. Manufacturers own the physical half, and it is the half that fails.
- Durability is the operative word — the carrier must read across the product’s whole life, not just at dispatch.
- Batteries lead in February 2027, with wider product categories following through 2028–2030.
- Decide the carrier at design stage. Retrofitting a readable, permanent code onto a finished part is the expensive route.
The Digital Product Passport is discussed almost entirely as a data initiative — what information must be held, in what schema, in which repository, accessible to whom. That is one half of it. The other half is a physical object attached to a product, which has to survive that product’s life and still be readable at the end of it, and that half belongs to manufacturers rather than to software teams.
What the Regulation Actually Requires Physically
The passport data is linked to the item by a data carrier — in practice a two-dimensional code or an RFID tag — attached to the product, its packaging or accompanying documentation. Three characteristics recur in the requirements: it must be accessible without specialist equipment, machine-readable, and durable across the product’s life.
The durability requirement is the one with engineering consequences. A passport that identifies a product for its whole life must remain readable at the point where the information is most valuable, which is end of life: at a recycler, a dismantler, a repair shop or a resale platform, potentially many years and many exposures after manufacture.
Most identification applied to plastic products today is not designed for that. Printed labels delaminate, fade and are removed; ink-jetted codes abrade and are attacked by cleaning products; adhesive labels are the first thing to fail on a component that has spent years outdoors or in a vehicle. A carrier intended to work at end of life has to be specified for it from the start.
The Timetable, Concretely
Batteries are first. Industrial, automotive and portable batteries placed on the market from February 2027 require a passport, and that is a firm date rather than a proposal. Textiles, consumer electronics, tyres and several other categories are expected through 2027 as the first mandatory wave under the wider ecodesign framework.
Packaging, plastics, chemicals, furniture and other sectors sit in the 2028 to 2030 range. That looks distant and is not, because the products being designed now are the products that will be on the market then, and the carrier decision belongs to the design.
There is also an indirect route that arrives sooner. A component supplier into a regulated category is affected by the requirement even if their own product category is not yet covered, because the assembler needs traceable data and identifiable parts from upstream. Polymer housings, connectors and enclosures going into batteries and electronics fall into this category now.
Where the Engineering Problem Sits
Applying a permanent, machine-readable code to a plastic surface is a well-understood process with a well-understood set of constraints, and each one has to be resolved at design rather than at the line.
Contrast. A code is readable because its elements contrast with their background. On a black part, on a translucent part, on a highly filled part, achieving that contrast may require a marking additive, a different marking wavelength, or a designed contrast panel.
Surface finish. Gloss defeats readers through specular reflection, and texture disrupts element edges. A matte panel of adequate size, moulded into the part where the code will go, solves both and costs nothing if it is in the tool.
Geometry. Codes read best on flat surfaces. Curvature distorts the code as the reader sees it, and severe curvature or a small radius can make an otherwise perfect code unreadable.
Size and resolution. The information content sets the number of elements, and the marking method sets the achievable element size. Those two together determine how much flat area the code needs — a dimension that has to exist on the part.
Durability. Whichever method is used must produce a code that survives the service environment: abrasion, cleaning chemicals, ultraviolet, temperature and, for many products, years outdoors.
Why Laser Marking Is the Default Answer
For polymer components, laser marking meets the durability requirement more naturally than the alternatives because the mark is formed from the substrate rather than applied to it. There is nothing to delaminate, no adhesive to fail, and no ink to abrade away. A carbonised or foamed mark in the polymer surface is as permanent as the surface itself.
It also fits the data requirement well. Each code is unique, and laser marking changes content between parts at no cost, which serialisation demands. It adds no consumable and no contact, which suits regulated and clean production.
The constraints are the ones above: contrast depends on the polymer and its additive package, geometry must allow the beam access to a suitable flat area, and the process needs qualifying for durability against the actual service exposure. Where contrast on the base polymer is inadequate, a marking additive resolves it — which is a material decision, made with the resin specification, not a process adjustment made later.
What to Do Now
For products in or supplying the first regulated categories, the practical near-term actions are concrete. Establish whether your product or your customer’s product falls into the 2027 wave, directly or as a component. Decide where the carrier goes on the part and reserve the area, with a moulded matte panel if the surface finish requires it. Establish which marking method achieves the required code grade on your actual material, including the darkest and most filled variants. Qualify durability against the real service exposure, measured as code grade after exposure rather than as visual legibility. And confirm that verification at the line can grade every unit, since a code that is applied and not verified is a code you will discover is unreadable when somebody else tries to read it.
None of this is difficult. All of it is considerably easier before tooling exists than after, which is the whole argument for treating the carrier as a design input rather than a compliance task.
Related Reading
- Marking a DPP Carrier That Lasts
- DPP for EV Batteries
- DPP Readiness for Plastics Molders
- Laser Marking and Machine Vision Codes
- Plastics Laser Marking
Need help with this?
The Sabreen Group provides independent engineering support for durable data carrier selection, marking and verification for product passport compliance. Our engineering services team works with manufacturers on process development, material qualification and production troubleshooting. Contact us to discuss your application.
Frequently Asked Questions
What is a Digital Product Passport?
A structured set of data about a product — its materials, composition, origin, repairability, recycled content and end-of-life handling — held in a digital record and linked to the physical item by a data carrier attached to it. The intention is that anyone in the chain, including consumers and recyclers, can retrieve that information from the product itself.
Which products are affected first?
Batteries are the first mandatory category, with the requirement applying from February 2027 for industrial, automotive and portable batteries placed on the market. Further categories including textiles, consumer electronics and tyres follow through 2027, with packaging, plastics and other sectors expected in the 2028 to 2030 wave.
What does the carrier requirement mean physically?
A machine-readable identifier — typically a two-dimensional code or an RFID tag — that is attached to the product, accessible without special equipment, and durable enough to remain readable throughout the product’s life including its end-of-life handling. That is a permanence requirement most labels are not designed to meet.
Why does this matter to a plastics manufacturer specifically?
Because the carrier normally has to go onto a polymer surface, and applying a permanent, high-contrast, machine-readable code to plastic is a process problem with real constraints: substrate colour, additive package, surface finish, curvature and the durability of whatever method is used.
When should the carrier decision be made?
At design stage, alongside part geometry and material selection. Deciding where the code goes, how large it is, what surface finish it needs and which marking method will produce it is straightforward before tooling and difficult afterwards, when the available flat area and the moulded finish are already fixed.
