Rail & Mass Transit

Sealing & Gasketing Solutions

Rail & Mass Transit

Industry Solutions > Transportation & Mobility

Armstrong is well-versed in the properties of different seal and gasket materials and how they can be applied in the rail & mass transit industry. By working closely with customers, Armstrong is able to design and manufacture custom solutions that meet their specific requirements.

Interior / Cabin

Armstrong Interior Cabin Sealing and Gasketing Solutions

Interior lighting gaskets

Requirements

  • Dampen noise and vibration generated by providing a cushion between the lighting fixture and its mount.
  • Good heat resistance

Solutions

  • Process: Die cut;  Materials: PU foam, PE foam, EPDM foam
  • Process: Elastomer Moulding;   Materials: EPDM, CR

Electrical enclosure gaskets

Requirements

  • Dampen vibration transmitted from the train body to the enclosure to prevent rattling of electrical components inside the enclosure
  • Good dielectric properties and EMI shielding as required

Solutions

  • Process: Die cut;  Materials: Conductive PU foam, Conductive Rubber
  • Process: Elastomer Moulding;   Materials: Conductive Silicone

HVAC seals & gaskets

Requirements

  • Provide a tight seal between the HVAC components
  • Able to withstand moisture, heat fluctuations and varying degrees of vibration

Solutions

  • Process: Die cut;   Materials: PU foam, PE foam, EPDM foam

Equipment mounting gaskets

Requirements

  • Dampen or isolate vibration transmitted from the train body to the equipment to prevent damage to the equipment
  • Good chemical, oil and solvent resistance if required

Solutions

  • Process: Die cut;  Materials: Microcellular PU foam, EVA foam, Silicone foam
  • Process: Elastomer Moulding;   Materials: NBR, FKM, Silicone

Wire harness grommets

Requirements

  • Protect electrical wiring from damage through holes and openings
  • Able to suppress rattling, and have good resistance to cold and heat

Solutions

  • Process: Elastomer Moulding;   Materials: EPDM, Silicone

Exterior

Armstrong Sealing & Gasketing Solutions for Rail Exterior

Headlight gaskets

Requirements

  • Provide a secure and weather-tight seal between the headlight assembly and the train body
  • Weather resistance, high-temperature resistance

Solutions

  • Process: Die cut;   Materials: EPDM foam
  • Process: Elastomer Moulding;   Materials: EPDM, CR, Silicone

HVAC seals & gaskets

Requirements

  • Provide a tight seal between the HVAC components
  • Weather resistance, and able to withstand moisture, heat fluctuations and varying degrees of vibration

Solutions

  • Process: Die cut;  Materials: EPDM foam, PE foam, PU foam
  • Process: Elastomer Moulding;   Materials: EPDM,CR,  Silicone