Full Adhesive Solution for Railway Transportation Industry
The solution is applicable to high-speed trains, urban metros, intercity trams and heavy locomotives, and all application scenarios are divided into six modules: body assembly, window system, interior and floor components, bogies and running devices, on-board electrical control, underbody piping, and maintenance and repair. The bonding materials are classified into six categories based on their functions: structural adhesives, elastic sealants, thermal conductive sealants, thread locking agents, flame-retardant and anti-corrosion coatings, and repair fillers. All formulations are adapted to the harsh railway operating environment: extreme low temperatures as low as -40°C, high temperatures up to 120°C, coastal areas with C5-M grade strong salt spray, northwest regions with intense ultraviolet radiation, alternating aerodynamic pressures at 350 km/h, and millions of cycles of vibration. All materials comply with railway mandatory standards, including EN 45545 fire performance, TB/T 3237 low-VOC requirements, and TB/T 3138 low-smoke flame-retardant standards. 1. The bonding agent for the vehicle assembly (the core structure of lightweight design) needs to strike a balance between lightweight design, anti-fatigue performance, and compatibility with different substrates.
Drawing 1：Car Body Assembly
Sectional structure of the vehicle body assembly: Side wall of the high-speed train body + Roof + Cross-sectional view of the underframe
Label No.
English Position Mark
Adhesive Category
1
Underframe Main Beam Bonding
Toughened Railway Two-Part Epoxy
2
Roof & Side Skin Splicing
Aliphatic PU Structural Adhesive / MS Modified Silane
3
Locomotive Nose Shell Bonding
Epoxy+Flexible PU Compound Adhesive
4
Weld Seam Sealing
MS Modified Silane Sealant / Polysulfide Sealant
5
Aluminum Honeycomb Panel Lamination
MMA Acrylic Adhesive / Low-Temperature Epoxy
Attached Table for Drawing 1
Adhesive Model
Working Temp
Railway Standard
JOME Model
Araldite 2047
-40℃~120℃
EN45545 HL2, TB/T3138
EP-Rail01
Sika 221
-50℃~90℃
TB/T3260, QUV 5000h qualified
PU-Rail
Polysulfide industrial grade
-35℃~110℃
Salt spray ≥1000h
MS-680
Plexus MMA
-40℃~100℃
V0 flame retardant
MMA-R Series
Drawing 2：Window & Door & Gangway System
The sectional structure of the vehicle windows, doors and passage: side windows of the EMU + sliding doors + longitudinal section of the passage
Label No.
English Position Mark
Adhesive Category
1
Windshield Glass Bonding
Railway One-Component PU Windshield Adhesive
2
Door Frame Edge Sealing
MS Elastic Sealant
3
Door Hinge Thread Locking
Removable Medium-Strength Anaerobic Thread Locker
4
Corrugated Gangway Bellows Bonding
Hydrolysis-Resistant PU Sealant
5
Gangway Air Duct Sealing
Halogen-Free Flame-Retardant Silicone Sealant
6
Threshold Step Sealing
Wear-Resistant PU Sealant
Attached Table for Drawing 2
Adhesive Model
Working Temp
Railway Standard
JOME Model
Sika 221
-45℃~95℃
EN45545 HL2, TB/T3237
PU-Wind
General medium anaerobic
-40℃~130℃
Oil resistance standard TB/T2843
Anaerobic M24
Flame retardant silicone
-60℃~180℃
Low smoke halogen free
RTV-Rail-FR
Drawing 3：Interior System
Interior assembly cross-sectional structure of the vehicle: Passenger compartment side wall interior panel + luggage rack + insulation layer cross-section
English Position Mark
Adhesive Category
Ceiling & Side Decor Panel Bonding
Single-Component MS Sealant / Fast-Curing MMA
Handrail & Seat Base Bonding
Flexible PU Adhesive
Thermal Insulation Cotton Fixing
Low-VOC Flame-Retardant Waterborne Spray Adhesive
Maintenance Hatch Sealing
Flame-Retardant Food-Grade RTV Silicone
Skirting Board Bonding
Environment-Friendly MS Sealant
Attached Table for Drawing 3
Adhesive Model
Working Temp
Railway Standard
JOME Model
Waterborne Henkel rail glue
0℃~75℃
VOC≤50g/L TB/T3237
Water-A Rail
General interior MS
-40℃~85℃
UL94 V0
MS-Interior
Food-grade silicone
-50℃~170℃
Non-toxic low emission
RTV-Food-FR
Drawing 4：Bogie & Running Gear
Sectional structure of the running gear of the bogie: wheelset + frame + brake disc + side view sectional view of axle box
Label No.
English Position Mark
Adhesive Category
1
Brake Disc & Brake Pad Backplate Bonding
High-Temperature Inorganic Ceramic Adhesive
2
Bogie Heavy Bolt Locking
High-Strength Red Anaerobic Thread Locker + Anti-Seize Grease
3
Axle & Bearing Retention
Bearing Special Anaerobic Retaining Compound
4
Underbody Weld Three-Proof Sealing
Three-Proof PU Sealant
5
Brake Hydraulic Thread Sealing
Oil-Resistant Anaerobic Sealant + PTFE Paste
Attached Table for Drawing 4
Adhesive Model
Working Temp
Railway Standard
JOME Model
High temp ceramic adhesive
-40℃~700℃ instant peak
Anti-thermal shock rail standard
Ceramic-Brake01
High strength red anaerobic
-55℃~150℃
Vibration fatigue 5 million cycles
Anaerobic High Red
Bearing retaining glue
-40℃~140℃
TB/T anti-runout test
Retain-Bearing
Drawing 5：On-Board Electrical & Control Cabinet
Sectional structure of the vehicle-mounted electrical control cabinet: Inverter cabinet body + IGBT module + circuit board section
Label No.
English Position Mark
Adhesive Category
1
IGBT Module Thermal Interface
Thermally Conductive Gel / Thermally Conductive Epoxy
