The PPWR Adhesive Buyer’s Guide: How EU Regulation 2025/40 Will Reshape Paper Packaging Procurement

In four months, the most significant piece of EU packaging legislation in three decades goes live. On August 12, 2026, Regulation (EU) 2025/40 — better known as the Packaging and Packaging Waste Regulation (PPWR) — begins its general application across all 27 EU member states. Unlike its predecessor, this is not a directive that individual countries can interpret loosely. It is a regulation: uniform, binding, and directly enforceable.

If you buy adhesives for paper packaging — tubes, cores, corrugated boxes, honeycomb panels, protective edges — PPWR will reshape every sourcing decision you make over the next decade. The regulation introduces a mandatory recyclability grading system, bans the lowest-performing packaging from the market, and ties Extended Producer Responsibility (EPR) fees directly to how recyclable your packaging actually is. And here is the part most adhesive buyers have not yet grasped: your adhesive choice can determine your packaging’s recyclability grade.

This guide breaks down what PPWR means for adhesive procurement, why “stickies” are about to become an expensive problem, and how to future-proof your supply chain before the regulation’s bite sharpens in 2030 and beyond.

What is PPWR? A quick overview

PPWR — Regulation (EU) 2025/40 — replaces the 30-year-old Packaging and Packaging Waste Directive (94/62/EC). The distinction between “regulation” and “directive” is not semantic. While the old directive required each member state to pass its own national laws (leading to a patchwork of 27 different interpretations), the PPWR applies identically everywhere. One set of rules. No room for creative national transposition.

Published in the Official Journal of the EU on January 22, 2025, and entering into force on February 11, 2025, the regulation provides an 18-month transition period before its general application date of August 12, 2026.

Core objectives

PPWR is built on four pillars:

• Prevent unnecessary packaging — reduce per capita packaging waste generation
• Promote reuse, refill, and recycling — shift toward a circular economy model
• Harmonize national measures — eliminate trade barriers and competition distortions across the single market
• Contribute to climate neutrality by 2050 — aligned with the European Green Deal

Scope

The regulation covers all packaging and packaging waste, regardless of material (paper, plastic, glass, metal, wood, composite), origin (industrial, retail, household), or whether it is manufactured in the EU or imported. If your packaging enters the EU market, PPWR applies.

Key provisions at a glance

• Mandatory recyclability: All packaging must be designed for recycling, graded on an A-to-E scale
• Recycled content targets: Minimum percentages for plastic packaging (2030, 2040)
• Waste reduction mandates: Per capita packaging waste must decrease by 5% by 2030, 10% by 2035, and 15% by 2040 (against a 2018 baseline)
• Material-specific recycling rates: Paper and cardboard face an 85% recycling rate target by 2030 — the highest of any material
• Substance restrictions: PFAS banned in food-contact packaging; combined heavy metals capped at 100 mg/kg
• EPR fee modulation: Eco-modulated fees based on recyclability grades from 2028
• Packaging minimization: Empty space in parcels capped at 50%; weight and volume optimization required
• Digital labeling: QR codes linking to Digital Product Passports (DPP) progressively required for many packaging formats from 2027–2028, phased through implementing acts

Why adhesive buyers should care

At first glance, PPWR looks like a regulation for packaging producers and brand owners. But dig into the recyclability requirements and you find that every component of a packaging unit — including the adhesive — affects compliance.

Your adhesive determines your recyclability grade

Under PPWR, recyclability is assessed at the “packaging unit” level. That means the adhesive holding your paper tube together, the glue bonding your corrugated layers, or the laminating compound in your honeycomb panel is not invisible to the grading system. It is part of the assessment. As industry analysis has concluded: “The choice of materials, inks, adhesives, varnishes or multi-layer laminates becomes central to compliance” with PPWR design criteria.

“A small percentage of non-compliant adhesive can invalidate the whole claim. A paper tube made from 100% recyclable fibre can be downgraded to a D or E rating — effectively banned from the EU market by 2030 — if its adhesive contaminates the recycling stream.”

The recyclability grading system

PPWR introduces a five-tier mandatory grading system. The phase-out schedule is aggressive:

EPR fees: the financial incentive

Starting from 2028, Extended Producer Responsibility fees will be eco-modulated based on recyclability grade. Grade A packaging pays lower fees. Grade C pays higher fees. This creates a direct, recurring cost differential tied to adhesive performance.

For a paper tube manufacturer producing thousands of tons annually, the difference between Grade A and Grade C EPR fees could translate into tens of thousands of euros per year. The adhesive is often the component that determines which grade you land in.

Paper faces the highest recycling target

Among all packaging materials, paper and cardboard carry the most ambitious recycling rate targets under PPWR: 85% by 2030. Europe already achieves strong paper recycling rates — 86.6% for paper packaging in 2023, according to CEPI and the European Paper Recycling Council — but maintaining that rate while the market grows requires every link in the value chain, including adhesive suppliers, to contribute to recyclability rather than undermine it.

The stickies problem: how wrong adhesives contaminate paper recycling

If you work in the paper industry, you have likely heard the term. If you buy adhesives for paper packaging, you need to understand exactly what it means under PPWR.

“Stickies” are adhesive-origin contaminants that survive the paper repulping process. When recovered paper is broken down in water at pulping temperatures, most of the fibre separates cleanly. But adhesive residues from tapes, labels, seam bindings, and laminating compounds can persist. They cling together, build up into globs or strings, adhere to papermaking equipment, fill press felts, and create spots and defects in the finished recycled paper.

Microstickies: the invisible majority

The real concern is not the large, visible sticky particles. It is the microstickies — particles smaller than 100 microns that pass through standard pressure screens. Research from North Carolina State University has found that “microstickies constitute 70-90% of total stickies” in the paper recycling process, and they are “particularly recalcitrant” — meaning they cannot be effectively removed by conventional screening because they are deformable and squeeze through.

Microstickies cause:

• Deposit buildup on dryer cylinders and press rolls
• Spots, holes, and breaks in finished paper sheets
• Reduced fibre yield from pulping operations
• Increased chemical consumption for deposit control
• Downtime for cleaning and equipment maintenance

Where stickies come from

Not all adhesives create stickies. The key variable is what happens to the adhesive during the repulping process — specifically, when recovered paper is immersed in water at approximately 50 degrees Celsius and agitated in an industrial pulper.

Water-soluble adhesives (starch-based, dextrin) dissolve during this process. They become part of the water phase and are carried away during screening and washing. They do not persist as solid contaminants. Zero stickies.

Water-insoluble adhesives (many synthetic polymers, hot melts, certain PVA formulations) may not dissolve. Instead, they fragment into particles of various sizes — including microstickies — that persist through the recycling process and contaminate the output.

Why this matters under PPWR

Under PPWR’s Design for Recycling criteria, adhesives that generate stickies can directly reduce a packaging unit’s recyclability grade. The 4evergreen industry alliance, a cross-value-chain platform for fibre-based packaging circularity, puts it succinctly:

“Adhesives can impact the yield and quality of the recycling process. The amount of adhesives used should be optimised to the minimum amount required to achieve its function.”

But minimizing quantity is only half the equation. Choosing the right adhesive chemistry — one that dissolves rather than persists — is the other half. And under PPWR, it is no longer optional.

Dextrin and starch adhesives: the natural PPWR-compliant choice

There is a category of adhesive that does not create stickies, passes repulpability testing with high fibre yield, biodegrades naturally, and contains no substances of very high concern. It has existed for decades, long before PPWR was drafted. It is dextrin — a modified plant starch, typically derived from potato, corn, or tapioca.

Why dextrin adhesives are inherently PPWR-ready

The alignment between dextrin adhesive chemistry and PPWR requirements is not the result of reformulation or clever marketing. It is structural — a consequence of what dextrin adhesives fundamentally are:

• 100% bio-based. Derived from renewable agricultural crops, not petrochemical feedstocks. This aligns with PPWR’s sustainability objectives and gives buyers a clear provenance story for their Digital Product Passport documentation.
• Fully water-soluble. During the standard paper repulping process (water immersion at ~50 °C with agitation), dextrin adhesives dissolve completely. They enter the water phase and are removed during screening and washing. The result: zero stickies, zero microstickies, zero contamination of the recycled fibre stream.
• Excellent repulpability performance. When tested under CEPI Test Method 27.02 — the harmonized European repulpability procedure that evaluates fibre yield, coarse and fine reject, dissolved substances, and visual impurities — starch-based adhesives consistently achieve high fibre yields and minimal reject fractions.
• Biodegradable and compostable. Unreinforced starch adhesives meet EN 13432 — the European standard for industrial compostability, requiring 90% biodegradation within six months. For packaging streams that require composting certification (which PPWR mandates for certain formats by mid-2027), dextrin adhesives are naturally compatible.
• Non-toxic, low-VOC. Water-based dextrin adhesives contain no organic solvents, no PFAS, and no heavy metals. They meet PPWR’s substance restriction requirements without modification.
• Borax-free options available. Traditional starch adhesives sometimes used borax (sodium tetraborate) as a crosslinker. But borax-free dextrin formulations eliminate this concern entirely, providing dual compliance with both PPWR substance restrictions and REACH SVHC requirements.
• Simple material composition = easier documentation. Starch + water. The simplicity of the formulation makes it straightforward to provide the complete material composition data that PPWR requires for labeling, QR codes, and Digital Product Passports from 2027 onward.

The market trajectory

The bio-based adhesives market is already growing in response to regulatory and market pressures. Current estimates put production at 1.21 million tons in 2025, projected to reach 1.54 million tons by 2030 — a compound annual growth rate of over 5%. The broader starch adhesive market is valued at approximately USD 13.5 billion (2023), projected to reach USD 19.6 billion by 2030.

Meanwhile, the paper tubes market — one of the primary applications for dextrin adhesives — is forecast to grow from USD 11.34 billion in 2025 to USD 21.61 billion by 2035 (6.66% CAGR), driven by e-commerce expansion, sustainability mandates, and accelerating plastic substitution. PPWR is explicitly cited as a regulatory driver of this growth.

PVA and synthetic alternatives: what is at stake

Before we go further, an important caveat: not all synthetic adhesives are problematic under PPWR. Modern water-based polyvinyl acetate (PVAc) formulations can be engineered for recycling compatibility. The challenge is that achieving and proving that compatibility requires more effort, more testing, and more documentation than with inherently compatible starch-based alternatives.

The core risks for PVA and petrochemical adhesives

1. Stickies risk. Synthetic polymer adhesives — including certain PVA, PVAc, hot melt, and pressure-sensitive formulations — have a higher probability of persisting through the repulping process and generating microstickies. Whether they do or not depends on the specific formulation, crosslinking chemistry, and application parameters. But “depends on the specific formulation” is a less comfortable position than “inherently dissolves in water.”
2. Petrochemical origin. PVA and PVAc are derived from petrochemical feedstocks — ultimately from oil and natural gas. Under PPWR’s sustainability framework, which aligns with the European Green Deal’s climate neutrality target, adhesives derived from renewable sources have an inherent positioning advantage.
3. Oil price volatility. The connection between PVA pricing and crude oil markets introduces a supply chain vulnerability that bio-based alternatives do not share. When oil prices surge, PVA adhesive costs follow. Starch-based adhesive pricing, tied to agricultural commodity markets, follows a different and historically more stable trajectory.
4. Recyclability uncertainty. The behavior of synthetic adhesives in paper recycling streams varies by formulation, application weight, and curing conditions. Each formulation requires individual testing to demonstrate PPWR compliance. Starch-based adhesives, by contrast, have a well-established track record of repulpability that applies across the product category.
5. Higher VOC potential. Some synthetic formulations — particularly solvent-based variants — carry higher volatile organic compound levels, creating additional regulatory exposure under workplace safety and environmental emission standards.

The compliance documentation burden

Even when a synthetic adhesive is genuinely recycling-compatible, proving it under PPWR requires:

• Repulpability testing per CEPI Test Method 27.02 for each formulation
• Documentation of complete material composition for Digital Product Passport
• Demonstration that the adhesive does not generate stickies above acceptable thresholds
• Ongoing monitoring as formulations change or as DfR criteria are updated (expected 2028)

This is feasible, but it adds cost, complexity, and lead time to the procurement process. For adhesive buyers evaluating their PPWR readiness, the question becomes: do you want to spend resources proving that your adhesive is recycling-compatible, or do you want an adhesive where compatibility is the starting point?

The borax factor: REACH and PPWR double pressure

PPWR does not exist in a regulatory vacuum. For adhesive buyers, its impact converges with another major EU regulation: REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). The intersection point is borax.

What is the borax issue?

Borax (sodium tetraborate) and boric acid have traditionally been used in adhesive formulations — including some starch-based adhesives — as crosslinkers and thickeners. They improve viscosity control and bonding characteristics. But they carry a significant regulatory burden:

• December 16, 2010: Borax was added to the REACH SVHC (Substance of Very High Concern) Candidate List, classified as toxic for reproduction (Category 1B)
• July 1, 2015: Proposed for inclusion in REACH Annex XIV (the Authorization List) by ECHA
• Current concentration threshold: 5.5% for boric acid, 4.5% for sodium tetraborate
• Proposed revision: Reduction to 0.3%, which would trigger CMR (Carcinogenic, Mutagenic, or Reprotoxic) classification for mixtures

The double pressure

PPWR adds another layer. Its substance restriction provisions require that packaging does not contain substances harmful to human health or the environment above specified thresholds. While PPWR’s explicit substance bans focus on PFAS and heavy metals, its broader Design for Recycling criteria and EPR fee modulation create additional economic pressure against substances flagged under REACH.

For adhesive buyers, this means:

• If your current adhesive contains borax — even within current REACH thresholds — you face a tightening regulatory trajectory
• The proposed 0.3% threshold would effectively require reformulation of many borax-containing adhesives
• Switching to borax-free formulations now eliminates future REACH compliance risk and aligns with PPWR substance requirements simultaneously

Borax-free dextrin: dual compliance in one decision

Borax-free dextrin adhesives resolve both regulatory pressures in a single procurement decision. No SVHC-listed substances. No reformulation risk from evolving REACH thresholds. No PPWR substance restriction exposure. And because the adhesive remains water-soluble, no stickies in the recycling stream.

This is what dual compliance looks like: one adhesive choice that satisfies both the chemical safety requirements of REACH and the recyclability, substance, and sustainability requirements of PPWR. For procurement teams managing multi-regulation compliance, simplicity has real value.

Your PPWR compliance checklist: 16 questions every adhesive buyer should ask

Whether you are evaluating a new adhesive supplier or auditing your current one, these 16 questions will help you assess PPWR readiness.

A supplier who can answer all 16 questions affirmatively — with data, not assertions — is a supplier ready for PPWR. A supplier who cannot answer several of them is a supplier who may become a compliance liability.

Timeline: what to do when — from Q2 2026 to 2038

PPWR compliance is not a one-time event. It is a rolling sequence of deadlines, each raising the bar.

The bigger picture: why this matters for the paper packaging industry

PPWR arrives at a moment when paper packaging is growing faster than almost any other packaging category. The European paper packaging market is valued at USD 95.81 billion in 2025, projected to reach USD 119.22 billion by 2030 (4.47% CAGR). Germany leads with 22.4% market share, followed by Italy at 16.4%. Corrugated boxes represent 38.32% of the market. Europe holds 40.8% of the global circular packaging market.

This growth is being driven in part by PPWR itself — as plastic packaging faces substance restrictions, recycled content mandates, and reuse targets, brands are accelerating their shift toward paper-based solutions. Paper tubes, paper cores, corrugated packaging, and honeycomb panels are all beneficiaries of this trend.

But growth creates scrutiny. As more packaging moves to paper, the recycling infrastructure must handle higher volumes — and contaminants like stickies become a larger problem at scale. The adhesive that seemed acceptable when your plant ran 5,000 tons per year may become a recycling bottleneck at 15,000 tons.

PPWR was designed precisely for this moment: to ensure that the shift to paper packaging does not simply trade one waste problem for another. And adhesives are a critical part of making that transition work.

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