Less weight, more performance: lightweight expertise for sustainable railway technology
For decades, Krempel has been one of the leading suppliers of certified materials and semi-finished products for the most demanding requirements in railway vehicle construction. Our versatile range includes prepregs, pultrusion profiles, technical laminates, films and complex components and structures - customised for indoor and outdoor use. Our high-performance products are far more than just construction materials: they are key technological components for modern mobility - efficient, safe and durable.
Particularly in lightweight construction, they make a decisive contribution to energy saving and system efficiency. Thanks to their low weight and high load-bearing capacity, they enable durable components with maximum material performance.
Advantages of Krempel products for rail transport technology:
- FST fire protection in accordance with EN 45545 and certified safety: compliance with the highest fire protection classes and standards
- Weight reduction: Compared to conventional materials, composite materials are lighter, which leads to a reduction in the overall weight of rail vehicles. Lower mass leads to less energy consumption and lower operating costs.
- Strength and durability: Composite materials have high strength and durability, resulting in longer component life. They are resistant to mechanical stresses, easy to clean and environmental influences such as corrosion and UV radiation.
- Functionality and design: By combining different materials, specific properties can be achieved, such as fire protection, sound insulation, heat resistance or vibration damping, without having to compromise on aesthetic design.
Highest safety and quality standards for rail transport
Safety is the top priority in rail transport technology. Our entire portfolio fulfils the highest safety and quality requirements and is certified in accordance with the relevant railway standards:
- EN 45545
- HL3
- R1, R7, R17
In cooperation with accredited testing laboratories, we ensure that all Krempel products are fully certified in accordance with EN 45545 - the benchmark for outstanding FST fire protection properties for the protection of passengers and personnel. We also rely on railway technology standards for project management and order processing: Precision, process reliability and seamless traceability are our top priorities.
Applications at a glance
Our composite materials, components and electrical insulation materials are used in both the interior and exterior of various rail vehicles, including
- Long-distance and regional trains
- Light rail and underground trains
- Locomotives
- Special vehicles
- Transportation systems
Typical fields of application:
- Exterior and interior panels
- Partition walls, side walls, room dividers
- Flexible panels and gangways
- Floor panels, floor and duct systems
- Luggage compartments and parcel shelves
- Seats, armrests, multifunctional tables
- Flaps, covers, bonnets
- Window frames and door systems
- Ceiling panels and ceiling systems
- Roof skirts, superstructures and systems
- Radomes for antenna and telecommunications technology
- Shock absorbers in rails, insulation for points heating systems
Products & materials for the mobility of tomorrow
The demands placed on modern rail transport are constantly increasing - in terms of safety, comfort, sustainability and design. Krempel meets these challenges with customised material solutions based on decades of experience, certified quality and technological expertise.
Our comprehensive portfolio offers functional materials, structural components and high-performance insulation systems - developed for the interior and exterior of all common vehicle types: from long-distance and regional trains to underground trains and special vehicles.
With our Material Performance principle, we stand for highly functional materials that intelligently combine lightweight construction, safety and design freedom.
Material expertise on the rails
Laminates & Coatings
Our multi-layer laminates, decorative, speciality and polymide films are ideal for coatings and as anti-graffiti protection.
Rigid & Flexible Sheets
Based on epoxy and phenolic resins as well as GRP and polycarbonate glass. Ideal for transitions, panelling and weight-optimised interior fittings. In addition: mouldable special solutions.
Pultrusions Profiles
High-strength lightweight components for ceilings, floors, windows and aprons in interior and exterior areas. Fibre-reinforced, high dimensional stability and flame retardancy in accordance with web standard EN 45545. Can be combined with filament wound parts.
PVF-Films
PVF films offer functional solutions for high demands on surface protection, durability and design and design - no painting required, colour-stable, robust and easy to clean.
Flame-Retardant Composites
Using PREPREGS based on flame-retardant resin systems for sandwich panels, floors and doors - excellent fire behaviour in accordance with EN 45545, versatile processing options.
Complex 2D/3D Components
Individually configurable and easy to assemble: GRP components, injection moulded parts, sandwich structures, complex assemblies - for walls, ceilings, gangways, driver's cabs, etc.. In addition: antenna radomes.
Insulation Systems
Flexible insulating materials for the electrical insulation of motors and transformers - with excellent electrical, thermal and chemical properties, for high temperature classes.
Innovation KremGuard
KremGuard, our latest innovation for mobile applications, is an epoxy resin-based prepreg system that meets the highest Fire, Smoke, and Toxicity (FST) fire protection requirements. It also offers excellent mechanical properties and is free from phenol, formaldehyde, and halogens. A groundbreaking innovation that opens up new possibilities in rail technology.
Several curved and straight components made of plastic and composite materials are arranged side by side, some smooth, others featuring ventilation slots or textured surfaces. These are technical profiles manufactured from high-quality laminates.
A flat, rectangular panel made of a multilayer material is shaped into a step, with the top side featuring a slightly textured, beige surface and the bottom side being smooth and white. The component is a precision-manufactured laminate.
Several slightly curved, beige-brown sheets of paper are arranged side by side in a fan-like pattern and have a matte, slightly fibrous surface. The material resembles electrical insulation paper, such as that used in electrical insulation or composite materials technology.
Several thin, semi-transparent sheets in shades of yellow, white, and black are layered diagonally on top of one another. It is reminiscent of technical insulation films used in high-performance materials engineering.
Two smooth, flexible films—one dark gray to black, the other milky white—lie partially rolled up side by side. The surface has a high-quality appearance and is technically comparable to functional insulating films used in electrical or composites applications.
A gray material is softly rolled up at the front, revealing a textile surface, while blurred, bright red rods lie in the background. The material is a functional composite or prepreg fabric, such as those used in technical laminates or insulation systems.
A close-up view shows a yellow, rigid sheet of material with a fine, evenly spaced dotted pattern on the surface and a clearly visible edge. It is a fiber-reinforced laminate of the type used in high-performance and insulation applications.
You look into an empty subway car with many yellow handrails, gray seats along the sides, and a smooth, slightly glossy floor. The clean, functional surfaces are reminiscent of the robust insulation and composite materials used in Krempel’s technical applications.
Sandwich structures and prepregs for complete modules.
