Rubber Seals and Gaskets
for Mass Transit Railcar
Applications

Transportation and Mass Transit Rubber Seals and Parts Manufacturer

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Mass transit railcar manufacturers and procurement teams need elastomeric components that perform in the real world — not just in a spec sheet. Passenger safety compliance, tight production schedules, and sourcing partners who understand FST requirements are not optional. They are the baseline.

Seal & Design has supplied rubber seals, gaskets, duct seals, cable wrap, lighting gaskets, and access panel seals to the rail industry for over 150 years. As a 3M Preferred Converter and Rogers Preferred Converter, we stock and fabricate mass transit grade rubber products that comply with NFPA 130, EN-45545, Bombardier SMP800-C, Boeing BSS7239, and ASTM standards — and we deliver on schedule.

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FST-Compliant Materials for Mass Transit

Every material Seal & Design supplies for the rail industry is evaluated against flame, smoke, and toxicity (FST) requirements. We work with materials that meet the toughest standards in the industry so your team can spec with confidence and focus on building — not on chasing compliance documentation.

Standards we supply to:

  • NFPA 130 Table 8.4.1 & 49CFR238 Appendix B for Elastomers
  • ASTM E162, E662, C1166, E1354
  • Bombardier SMP800-C
  • Boeing BSS7239
  • EN-45545
FULL RAIL SPECIFICATIONS

Need Custom Gaskets for Your Railcar Build?

Seal & Design fabricates custom mass transit gaskets, from door and window profiles to HVAC duct seals and lighting gaskets, from FST-compliant materials, to your specification. See our full mass transit gaskets offering.

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Mass Transit Product Categories

We fabricate and supply rubber products for transportation across every functional system on a railcar. Whether you need door seals engineered for tight tolerances, FST-compliant ducting, or custom battery compartment seals, we produce it to your specification.

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anti-squeak, anti-vibration & flooring

DOOR & WINDOW SEALS

FST Ducting & HVAC Seals

accoustical & thermal barriers/Insulation

cable & conduit wrap

lighting gaskets & seals

access panel seals & battery covers

ANTI-SQUEAK, ANTI-VIBRATION & FLOORING

Vibration and squeaking in mass transit vehicles are passenger experience problems that are also engineering problems. Seal & Design supplies anti-vibration industrial gaskets, vibration-resistant gaskets, and elastomeric flooring solutions designed to reduce structure-borne noise and protect vehicle components from vibration-related fatigue.

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DOOR & WINDOW SEALS FOR RAILCARS

Passenger railcar doors and windows are subject to constant mechanical stress, weather exposure, and acoustic performance requirements. Poor seals lead to drafts, noise complaints, and water intrusion. Seal & Design supplies custom-extruded and molded door and window seals for mass transit applications, including tram rubber door seals and interior window seals, fabricated from solid neoprene, silicone, and closed-cell materials.

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FST DUCTING & HVAC SEALS

Ducting and HVAC systems in railcars are subject to strict FST requirements. Failure to meet these standards can delay production, trigger costly redesigns, or jeopardize passenger safety certifications. Seal & Design supplies FST-compliant duct seals, HVAC gaskets, and insulated wire seals engineered specifically for mass transit applications. Our materials comply with NFPA 130, EN-45545, and Bombardier SMP800-C — so your procurement team does not have to chase down documentation.

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ACOUSTICAL & THERMAL BARRIERS / INSULATION

Passenger comfort in railcars depends on effective noise and thermal management. Seal & Design supplies die-cut acoustical insulation, thermal barriers, and railcar acoustics insulation from proven materials, including Armaflex products and Sekisui Thermobreak. We provide custom-fabricated barriers that meet FST requirements and fit your specific railcar geometry.

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CABLE & CONDUIT WRAP

Cable and conduit systems in railcars require thermal protection, EMI shielding, and FST-compliant jacketing that can withstand the operational demands of mass transit environments. We supply elastomeric cable wrap and conduit wrap solutions including our Thermo Wrap series, designed specifically for the rail industry. Custom widths, adhesive backing, and die-cut formats are available.

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LIGHTING GASKETS & SEALS

Lighting fixtures in mass transit vehicles require reliable sealing to maintain performance and meet safety requirements. Inadequate lighting seals allow moisture intrusion, accelerate corrosion, and create maintenance headaches. Seal & Design supplies lighting gaskets and lighting seals — including PORON light seals and silicone noise barrier gaskets — fabricated to your exact fixture dimensions. Custom die-cut profiles are available for both interior and outdoor light seals.

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ACCESS PANEL SEALS & BATTERY COVERS

Access panel seals and battery compartment covers in railcars must maintain a secure seal against dust, moisture, and vibration throughout years of service. We fabricate custom access panel seals, battery cover seals, and battery compartment seals in a range of materials, including solid neoprene, silicone, and closed-cell foam — with or without pressure-sensitive adhesive backing.

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Why Mass Transit Manufacturers Choose Seal & Design

  • Over 150 years of experience supplying rubber products for transportation
  • 3M Preferred Converter and Rogers Preferred Converter: access to premium materials
  • Full fabrication capabilities: die cutting, slitting, custom fabrication, molding, extruding, kitting
  • FST-compliant materials across all product categories
  • Materials available with or without pressure-sensitive adhesive backing

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