Technical Silicone Engineered to Meet EN 45545-2 (HL3) for the Railway Sector

Manufacturing of silicone railway seals and profiles with formulations tested under EN 45545-2 and UL94 V-0. Production under an ISO 9001 management system in a certified ISO 8 Cleanroom environment.

Contact our team View regulations
Technical Silicone Engineered to Meet EN 45545-2 (HL3) for the Railway Sector
TIXAN'AIR® Inflatable Seals

TIXAN'AIR® Inflatable Seals

 Vulcanized Rings/Gaskets

Vulcanized Rings/Gaskets

 Reinforced Hoses/Tubing

Reinforced Hoses/Tubing

 Rectangular Profiles

Rectangular Profiles

 Square Profiles

Square Profiles
Technical specifications

Technical and Regulatory Requirements for European Rolling Stock

The European railway sector imposes extreme requirements in key areas such as fire safety, vibration resistance, and exposure to chemical agents and UV radiation. At ProSilicones64, we develop VMQ formulations tested under EN 45545-2 (HL2-HL3), manufactured under an ISO 9001 system with strict dimensional control in an ISO 8 cleanroom. All components are produced with full traceability and documented validation according to REACH and RoHS.

Formulations tested under EN 45545-2 (HL3), UL94 V-0, NF F16-101, and BS 6853
Extended temperature range from −110 °C to +315 °C with dimensional stability
Hardness from 25 to 80 Shore A in solid, foamed, or conductive versions
Proven resistance to UV, ozone, salt spray, and chemical agents
Low compression set and maintained elasticity over prolonged cycles
Electrically insulating or conductive versions depending on application
Custom RAL coloring or counter-typing of existing reference
Manufacturing under ISO 9001 system in certified ISO 8 Cleanroom environment
Regulatory compliance

Applicable Standards for Railway Applications

The following standards regulate material testing and process control in the manufacture of silicone railway components:

Normativa Ámbito de aplicación
EN 45545-2 Fire, smoke, and toxicity testing for materials in rolling stock (formulation testing)
UL94 V-0 Flammability classification of polymers (formulation testing)
EN 61373 Vibration and mechanical shock testing in railway components
ISO 9001 Quality management system certification (manufacturing process)
ISO 8 Cleanroom Certified environment compliant with ISO 14644 for critical components
REACH / RoHS Chemical compatibility and control of restricted substances
Industrial applications

Critical Applications in Railway Systems

Railway silicone from ProSilicones64 is integrated into systems where reliability and fire resistance are essential:

Automatic passenger doors → dynamic seals with controlled sealing integrity
Inter-car connections → flexible profiles for vibration absorption
HVAC and climate control systems → fire-retardant profiles with low smoke emission
Windows and cabins → thermally stable frames and sealed gaskets
Exterior and interior lighting → sealing resistant to UV radiation and ozone
Electrical and multimedia equipment → durable thermal and acoustic insulation
Floor and roof structures → anti-vibration technical foams
Service modules and compartments → long-life sealing profiles
Additional solutions

Other Common Solutions in the Railway Sector

Solid or sponge silicone cords (VMQ HTV / LSR)
Reinforced and multi-layer technical tubes
Self-extinguishing solid and foamed sheets
Profiles with metallic or textile inserts for structural reinforcement
Co-extrusion of multiple hardnesses and custom RAL colors
Vulcanized frames per drawing and customized geometries

Every solution can be adapted to project specifications, with dimensional validation, formulation testing, and complete technical documentation compliant with ISO 9001.

Need a technical silicone solution?

ProSilicones64 is a specialized European supplier of railway silicone for high-demand systems. The industrial alliance between Progress Silicones (France) and Establecimientos OR64 (Spain) combines an ISO 8 cleanroom, ISO 9001 quality system, and a stock of over 5,000 verified tools with metrological control. All formulations are tested under EN 45545-2 (HL3) and UL94 V-0.

Certificates of conformity are issued exclusively after the manufacturing and validation of the first production batch, in accordance with the internal traceability of the ISO 9001 system and REACH / RoHS records.
Contact our team
Contact Us