PPWR 2026 Coatings Compliance: How Chitin and Chitosan Can Help

Navigating the future of sustainable packaging: A visual guide to PPWR compliance and the shift toward eco-friendly alternatives.

PPWR will make coatings a frontline compliance issue from 12 August 2026: PFAS‑based barriers and poorly documented or non‑recyclable layers will directly affect market access, fines and EPR costs, while well‑designed chitosan/chitin coatings can become part of a robust, PPWR‑aligned packaging strategy (European Commission, 2026). Used carefully, chitosan systems can help replace high‑PFAS grease barriers, support fibre‑based formats and add active shelf‑life functions, provided recyclability and food‑contact safety are rigorously tested and documented (Barik et al., 2024).

PPWR 2026: what changes on 12 August

Regulation (EU) 2025/40 (PPWR) entered into force on 11 February 2025 and will apply directly across all EU Member States from 12 August 2026, replacing the old Packaging and Packaging Waste Directive without national transposition (European Commission, 2025). From that date, any packaging placed on the EU market must meet baseline sustainability requirements: minimisation in weight and volume, recyclability, and proper labelling and documentation for all businesses, including micro‑enterprises.

For grouped, transport and e‑commerce packaging, PPWR introduces an empty‑space requirement: parcels must be designed to minimise void space, with a practical 40% void‑space ratio used in current guidance as the benchmark for right‑sized e‑commerce packs. This sits alongside broader minimisation rules targeting unnecessary structural features such as double walls, false bottoms and purely decorative layers, unless specifically protected by existing design or trade mark rights.

Design‑for‑recycling becomes a core obligation: packaging must be “recyclable by 2030” under PPWR, and guidance introduces recyclability performance grades that will determine whether formats can remain on the market and how EPR fees are calibrated. In practical terms, converters already need to avoid structures and coatings that push packs into technically non‑recyclable territory, anticipating future grades and “recycled at scale” criteria.

For coatings, the key change is PPWR’s PFAS restriction: from 12 August 2026, food‑contact packaging cannot be placed on the EU market if PFAS levels exceed concentration‑based thresholds covering individual PFAS, total non‑polymeric PFAS and total PFAS including polymeric species (Anthesis Group, 2025). The ban applies to the entire packaging unit, including inks, varnishes, glues and barrier coatings, and there is no stock‑exhaustion period for non‑compliant packs placed on the market after that date.

Manufacturers and importers must also draw up an EU Declaration of Conformity (DoC) for each packaging type, supported by technical documentation showing compliance with minimisation, recyclability and substance restrictions. Those files explicitly cover coatings and functional layers, bringing previously “invisible” barriers into the scope of formal regulatory documentation.

Why coatings are a PPWR risk hotspot

Barrier and functional coatings occupy a small fraction of total packaging thickness, yet they can now determine whether a pack is legally placeable on the EU market and which recyclability grade it achieves (Balancing Functionality and Safety, 2026). PFAS‑based grease and water barriers on fast‑food wraps, pizza boxes, fibre cups and ovenable trays are directly in scope of the PFAS ban, so any intentionally added PFAS above the thresholds will trigger non‑compliance from day one.

Even where PFAS are absent, polymer coatings, metallised layers and strongly cross‑linked or adhesive systems can downgrade recyclability by preventing efficient separation, contaminating fibre or plastic streams, or producing residues that interfere with de‑inking, pulping or regranulation. PPWR recyclability guidance explicitly highlights labels, sleeves, glues, inks and additives as factors that can drag a pack below acceptable recyclability grades, and coatings routinely combine several of these elements.

Coatings are also a “hidden risk” from a documentation standpoint: recipes may sit with upstream suppliers, yet incomplete or inaccurate information in the DoC and technical file can still be treated as non‑compliance (EUROPEN, 2024). For large portfolios, this creates a disproportionate risk that one overlooked PFAS‑containing barrier or poorly characterised nanocomposite coating undermines an otherwise compliant fibre or plastic structure.

Penalties and enforcement: what happens after 2026

PPWR obligations start in August 2026, but Member States then have up to 24 months to define national penalties, competent authorities and market‑surveillance procedures, which must be “effective, proportionate and dissuasive” (EUROPEN, 2024). In practice, detailed enforcement frameworks are expected to crystallise around 2027, at which point coating‑related non‑compliance becomes a realistic route to fines and sales bans rather than a theoretical future issue.

Existing EPR systems provide a clue to penalty levels. In Germany, breaches of the Packaging Act (VerpackG) – including failures to register or participate properly in EPR systems – can already attract fines of up to €200,000 per infringement and public listing of non‑compliant packaging in the LUCID register (Deutsche Recycling, 2025). As PPWR is implemented, similar enforcement structures are expected to be used to police PFAS limits, recyclability grades and documentation quality, not just basic registration.

Market‑surveillance authorities are likely to increase routine checks, comparing EU Declarations of Conformity, lab data and on‑pack claims with actual portfolio reality and supplier documentation. Where PFAS levels exceed the thresholds, recyclability grades prove insufficient or the DoC cannot substantiate compliance, authorities can treat the whole packaging type as non‑compliant, leading to fines, sales bans and potential recalls. The message is clear: August 2026 marks the start of obligations, with stricter enforcement following shortly afterwards, not far in the future (JDSupra, 2026).

Where chitosan/chitin coatings can help

Chitosan, the deacetylated derivative of chitin, is a cationic polysaccharide with strong film‑forming behaviour, good oxygen barrier performance and the ability to contribute to moisture and CO₂ control in multilayer systems (Barik et al., 2024). Studies on chitosan films and coatings show marked reductions in gas permeability and water vapour transmission compared with uncoated fibre substrates, helping extend the shelf‑life of fruit, vegetables, meat and bakery products.

Chitosan also exhibits intrinsic antimicrobial and antifungal activity, which can be enhanced by incorporating plant extracts, organic acids or nanoparticles into the coating (Chitosan edible films review, 2023). Reviews of chitosan edible films and active coatings consistently report reduced microbial growth and oxidation, often yielding several extra days of shelf‑life under chilled or ambient storage for perishable foods.

From a PPWR standpoint, chitosan/chitin coatings can support several compliance objectives if properly designed and tested. They offer a realistic route to replace PFAS‑based grease and water barriers on paper and cardboard food‑contact packaging with bio‑based films, reducing PFAS risk while maintaining barrier performance. Thin chitosan coatings applied directly to fibre or compatible bioplastics can be tuned to preserve recyclability, avoiding complex composites that drag packs into low recyclability grades. Their active antimicrobial and antioxidant effects can also help justify packaging designs under minimisation rules by demonstrably reducing food waste and spoilage for sensitive products.

Entoplast develops BSF‑derived and fungal chitin/chitosan grades specifically for food‑contact, barrier and coating applications, emphasising controlled extraction, characterisation and film‑forming reliability. This positions chitosan systems as credible candidates for PFAS‑free grease barriers, fibre‑supporting coatings and active films in PPWR‑aligned packaging strategies.

Honesty about gaps remains essential. Recyclability performance of specific chitosan‑coated structures still needs validation under PPWR‑aligned protocols, including fibre recovery, de‑inking and downstream impacts on paper or plastic recycling streams. Food‑contact and migration testing is critical, especially for nanocomposite coatings that incorporate metal or metal‑oxide particles, where EU guidance stresses thorough assessment of migration, NIAS and toxicology (European Parliament, 2026). Industrial deployment must also address mechanical robustness, processability and cost relative to incumbent synthetic barriers.

Practical next steps for R&D and regulatory teams

The immediate priority is to map coatings and barriers across your portfolio, focusing on PFAS‑type grease barriers, metallised layers, solvent‑based lacquers and strongly cross‑linked polymer coatings that may constrain recyclability or lack robust technical documentation. Formats should then be classified by risk from August 2026: food‑contact packs with PFAS, high‑void e‑commerce packaging, and structures unlikely to reach acceptable recyclability grades once detailed criteria and delegated acts are in force.

On that basis, it is sensible to identify two or three pilot projects where chitosan or chitin‑based coatings could realistically replace problematic barriers or add active functionality without harming recyclability – for example fibre‑based takeaway containers, bakery trays or fresh produce packs where grease resistance and shelf‑life are both critical. In parallel, engaging suppliers such as Entoplast to specify suitable chitosan/chitin grades agree coating formulations and initiate food‑contact and recyclability testing will help de‑risk enforcement once national penalty regimes are in place.

Finally, R&D and regulatory teams should integrate coatings into PPWR documentation workflows: ensuring each packaging type has an EU DoC that explicitly covers barrier and functional layers, maintaining lab reports for PFAS testing and recyclability performance, and preparing to demonstrate that any chitosan‑based solutions meet safety, migration and performance requirements under EU food‑contact and PPWR rules. This operational focus on coatings can significantly reduce the risk of future penalties and market bans while creating space for credible, bio‑based innovation.