On 20 March 2025 took place an internal training for PLANETS WP4 partners on Safe-and-Sustainable-by-Design (SSbD) and Tier 1 assessments, aligned with a Flame Retardant (FR) case study Workshop, in the headquarters of Steinbacher in Erpfendorf (Austria) in hybrid mode.

The aim of the training was to align the knowledge of project partners in the theory and purpose of SSbD Tier 1 assessment, its application as well as discuss about potential further adaptations needed in the SSbD workflow for the project’s case studies. On the basis of the jointly performed Tier 1 assessments onsite gap analyses were conducted and potential further adaptations prioritized for sector- or value chain position-specific requirements.

The session was prepared by Neeraj Shandilya and Thomas Hennequin (TNO), with the support of Joséphine Steck (CEA), Martin Himly, Sabine Hofer, Norbert Hofstätter (PLUS).

Training Materials

Building on the insights from this internal training, PLANETS has developed external training materials for conducting SSbD Tier 1 assessment following the PLANETS SSbD Workflow. These materials include:

• Workshop presentation slides
• Recording of the workshop [YouTube video]
• Questionnaire with guiding questions within the PLANETS SSbD workflow for conduct of the Tier 1 SSbD assessment

All training materials are available in the PLANETS community on Zenodo under the Creative Commons Attribution 4.0 International licence, allowing for redistribution and reuse with proper credit to the creators. You can access them here.

Additionally, all recorded sessions can be viewed on the PLANETS YouTube channel.

After the six first months of active collaboration, PLANETS partners met on 8-9 April 2025 for the General Assembly at M6, in the historic and beautiful city of Gdansk (Poland) with a hybrid format allowing both in-person and virtual participation.

All project partners presented the progress made in the different work packages during the last months, reflecting on key developments, and engaging in lively discussions on how to move forward in the next six months of the project.

In addition, internal training activities took place on the first day to deepen partner knowledge and strengthen the internal collaboration:

• SSbD Training Session: Led by our colleagues from QSAR Lab, this hands-on workshop focused on intermediate and full assessment (Tier 2-3), including QSAR models for hazard prediction. Participants explored existing tools for predicting physicochemical properties and biological activities of chemical substances, key elements in the Safe-and-Sustainable-by-Design (SSbD) approach.
• Case Study Sessions: Each of the three PLANETS case studies held a special session to assess the current progress, refine the SSbD workflows, and define next steps, ensuring that each case study is aligned with the overall project strategy while maintaining a focus on their specific challenges and goals:
  • Surfactants Case Study, led by Pierre-Emmanuel Dufils (SYENSQO)
  • Fire Retardants Case Study, led by Carl-Christoph Höhne (Fraunhofer ICT)
  • Plasticizers Case Study, led by Raphaël Croiber (IPC)

Special thanks to our colleagues from QSAR Lab for hosting a fantastic meeting and welcoming partners with exceptional hospitality, bringing us the Polish culture and food closer to all of us!

Some impressions from the meeting:

Insights from the PLANETS Flame Retardant Workshop (19-20.03.2025)

In the project PLANETS, the Flame Retardants Case Study focuses on the development of safer and more sustainable alternatives for flame retardants used in thermoplastics made from polystyrene and thermoset foams derived from polyurethane. 

To produce expanded polystyrene (EPS) materials, solid beads of polystyrene are used. These beads contain not only polystyrene but also additives required for the final product, such as dyes (coloring agents), nucleating agents, and flame retardants. During EPS production, the solid beads undergo a significant increase in volume due to the effect of a blowing agent and gentle heating. In contrast, polyurethane (PU) foam insulation does not require a heating process. PU foams form spontaneously when monomers, which already contain all necessary additives, are mixed together. This chemical process can be likened to baking a soufflé—only instead of eggs, sugar, and flour, a chemist “chef” uses various chemical ingredients. Just as a soufflé recipe must be carefully followed to achieve optimal results, the successful creation of polymeric foams relies on precise ingredient ratios, exact formulations and well-chosen process parameters. Alterations to an optimized recipe—for instance, changing the flame retardant—may adversely affect the final quality and performance of the foam. But don’t panic, unlike a soufflé, our insulating foams do not collapse.

On 5 March 2025, PLANETS consortium organised their first internal online training session on PLANETS’ Safe and Sustainable by Design (SSbD) workflow, with a primary focus on scoping. The training aimed to harmonize the consortium’s understanding of SSbD, particularly among innovators and industrial partners who are not directly involved in the project.

Training Highlights

The session was moderated by Martin Himly (PLUS), who leads the training work package within PLANETS. He introduced the session, outlining the objectives and structure of the training. Carla Caldeira (SYENSQO) then provided an insightful explanation of the policy background and fundamental principles of SSbD. Following this, Sabine Hofer and Norbert Hofstätter (PLUS) elaborated on the key actions involved in the scoping process. Joséphine Steck (CEA), the project coordinator, presented the PLANETS SSbD workflow in detail. To enhance practical understanding, a case study on plasticizers in seals (gaskets) was introduced by Martin Himly, serving as the foundation for the hands-on scoping exercise. Participants were divided into breakout groups to practice scoping actions, reinforcing the theoretical knowledge gained during the session.

Training Materials

Building on the insights from this internal training, PLANETS has developed external training materials to facilitate SSbD scoping following the PLANETS SSbD workflow. These materials include:

• Recording on policy background and SSbD basics [YouTube video]
• Recording on scoping actions [YouTube video]
• Recording introducing the PLANETS SSbD workflow, along with a practical exercise using the JRC gasket plasticiser case from the SSbD stakeholder engagement phase [YouTube video]
• Workshop presentation slides
• Case description detailing the JRC gasket plasticiser background
• Guiding questions and practical exercise worksheet listing potential solutions within the PLANETS SSbD workflow

All training materials are available in the PLANETS community on Zenodo under the Creative Commons Attribution 4.0 International licence, allowing for redistribution and reuse with proper credit to the creators. You can access them here.

Additionally, all recorded sessions can be viewed on the PLANETS YouTube channel.

A special thanks to Joséphine Steck (CEA), Carla Caldeira (SQO), Beatriz Alfaro (BNN), Norbert Hofstätter, Sabine Hofer, and Martin Himly (PLUS) for their valuable contributions to making this training a success!