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Röchling Engineering Plastics KG is a leading manufacturer of Durostone® standard and special composite profiles, especially for all applications within railway engineering e.g. cable and air conditioning ducts, vouten covers, interior and exterior panels and planks, window and door frame covers.

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Durostone® Composite profiles offer several advantages in comparison to other materials:

• reduced weight because of low specific gravity (1,85 g/cm³)
• high strength
• good electrical and thermal insulation
• flame retardant or self-extinguishing
• resistant to chemicals and corrosion
• good surface for paint or even dyed
• great deal of construction flexibility
• cost-effective

Full-service

Our Pultrusion Department is a full-service supplier over and above pultrusion. We offer our assistance in design and realize further treatment on our very modern CNC machines to customers' requirements. We also assemble the sections with specialist fixings or adhesives and furnish them with protective or decorative coatings.

Customized design

Durostone® Composite profiles are customized to the individual application. Various reinforcements and resin complexes come into operation.

Roving reinforcement (unidirectional fibres) are used to achieve high tensile and bending strength, mat complexes (multidirectional fibres) for high longitudinal and transverse strength or combined lamination mat/roving/mat for good mechanical properties.

Polyester, Vinylester, Epoxy and Methacrylic (UP, UP-Iso, VE, EP, A) resin matrices are utilized.

Sizes

We offer composite profiles with the standard sizes of up to 1,350 mm width, 600 mm height and a thickness of 2.5 - 40 mm. Customized production is possible in accordance with customers' requirements. Our tool and device building department offers the necessary flexibility.

Flame retardancy

Durostone® Composite profiles have good fire protection properties. They fulfil the requirements of the different international flame retardant standards:

• DIN 5510: S4, SR2, ST2 / 3mm*
• DIN 4102: B1*
• NF F 16101: M1, F0 / 2.2mm*
• UL 94: HB, VO* / 3mm
• BS 476 Pt. 6 & 7*
• BS 6853: class 1b* (1a in development)
• BS 7239*
• ASTM E162*
• ASTM E662*

* only applicable for Methacrylate types; depending on wall thickness

Quality management

We liaise closely with our customers, discussing requirements and problems on site. Development and Quality Management staff ensures a complete and professional advice. A project manager is always at your disposal as a competent contact person.
Röchling Engineering Plastics KG's Quality Management System is certified to DIN EN 9001:2008.