The rail industry is moving faster than ever, and efficiency is no longer just a goal; it is a mandate. To meet the demands of tomorrow, operators and manufacturers must look beyond traditional building blocks.

For over 75 years, Diab has developed, improved, and fine-tuned our cores and sandwich technology with a solid focus on sustainability, turning us into the market leader in many areas. We have also grown into a total solutions partner that provides complete end-to-end services, from technical and design support to creating kits ready for your production. At InnoTrans 2026, we will showcase our innovative recyclable Divinycell PR sandwich core materials and all our services, highlighting advancements poised to significantly impact the rail industry. It is time to step up your rail game with Diab’s cutting-edge lightweight solutions.

Innovative Core Materials for a More Sustainable Rail Industry

For decades, the rail sector relied on heavy materials like plywood for interiors and flooring. While functional, these traditional materials come with heavy penalties: excess weight, susceptibility to rot, and higher fuel consumption. Diab offers a definitive alternative. By switching to our Divinycell PR sandwich core materials, you can revolutionize your rail applications, from roof to floor.

Key Benefits:

• Lightweight Design: Divinycell PR is designed to provide the necessary strength without adding excessive weight, potentially enhancing payload capacity and range in rail applications.
• Non-Organic Composition: The core’s non-organic nature eliminates the risk of rotting, which can be a concern in various environments.
• Insulation Properties: Divinycell PR offers enhanced insulation capabilities, which can benefit train interiors by contributing to energy efficiency and passenger comfort.
• Fire Safety: Compliance with EN45545-2 standards ensures that the Divinycell PR meets stringent fire safety requirements, which is crucial for rail applications. Several alternatives exist to achieve a lightweight, sustainable solution with aluminium, HPL, or fibre-reinforced composite skins in combination with fire-retardant resins.
• Full Recyclability: The 100% recyclable Divinycell PR reflects a commitment to sustainability and supports a circular economy.

Cross-section of a Diab sandwich composite panel, showing the Divinycell PR core layered between structural skins for lightweight, sustainable rail applications.

© Diab Group

A Commitment to Excellence and Safety

Our PET core materials are designed to withstand rigorous structural demands while ensuring compliance with fire safety standards. Their versatility makes them suitable for various applications within the rail industry, from floors to interiors and exterior components.

Proven Performance in Rail Applications

Our core materials have been integrated into several rail projects, demonstrating their robustness and versatility. These real-world applications highlight the materials’ performance and safety, making them a viable option for train manufacturers.

Join Diab at InnoTrans 2026

We will be at InnoTrans 2026 in Berlin from September 22 to 25. Visit Hall 3.1, Stand 790, to learn about Diab’s innovative products and how they contribute to sustainable solutions in the rail industry.

Always at the Core of Your Solution

At Diab, we are committed to providing solutions to our clients and sharing our knowledge and extensive experience in sandwich structures. With industry-leading competence, the broadest range of stronger, lighter, smarter core materials and a global presence, we continue to support advancements in various industries, including rail transportation.

This article was originally published by Diab.

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