Waterborne Rail Transit Coatings – Recommended Monolith Resin System
Rail vehicles such as metro cars, passenger coaches and freight wagons need coating systems that combine corrosion protection, a smooth and attractive finish and compatibility with putty and repair work. Waterborne 2K epoxy primers and 2K polyurethane topcoats are used to meet these needs with lower solvent emissions.
This page summarizes the Monolith waterborne system recommended for rail transit coatings in our catalog, the grades whose catalog application lists this field, and the performance points to check when you select a system.
Recommended Monolith system
“+” joins grades used together; “·” and “/” separate alternative options. Final selection depends on your substrate, process and specification.
Field-proven highlights
- Primer: surface dry slow / hard dry fast, putty resistance, high drawing strength
- Top coat: surface dry slow, hard dry fast, high DOI
Key performance needs
- Corrosion protection and strong adhesion on steel and welded car bodies
- Compatibility with body putty and multi-layer repair
- A balanced drying profile: slow surface dry for good flow, fast through-dry for handling
- High gloss and high DOI (distinctness of image) on large visible surfaces
- Weather resistance for outdoor service
Monolith grades for rail transit coatings
| Grade | Type | Catalog application | Listed as |
|---|---|---|---|
| EP141 | Epoxy dispersion | Rail transit primer | Recommended system |
| EH3510 | Modified polyamide | Construction / rail primer | Recommended system |
| AH233 | Acrylic dispersion | Mechanical equipment, transformer coating, rail topcoat | Recommended system |
| AH252 | Acrylic dispersion | Construction machinery | Recommended system |
| EH3507 | Modified amine adduct | Container / rail primer | Catalog application |
All parameters are for reference and based on the COA at the time of shipment.
Further reading
- Choosing Hydroxyl Acrylic Resins and Hardeners for 2K Waterborne PU Topcoats
- Flash-Rust Control in Waterborne Anti-Corrosion Primers
Related applications
All applications · Construction Machinery Coatings · Automotive OEM Coatings · Container Coatings · All products
Request TDS / Sample
Request TDS / Sample · Email: martin@monolithchem.com · WhatsApp: +86 135 5613 5445
FAQ
Which waterborne system does Monolith recommend for rail transit coatings?
The Monolith catalog recommends primer: EP141 + EH3510; topcoat: AH233 / AH252. “+” joins grades used together; “·” and “/” separate alternative options.
Which hardener is used with the epoxy primer for rail transit coatings?
The recommended primer pairs a Monolith waterborne epoxy resin with the amine curing agent EH3510, as listed in the system above. Mixing ratios depend on the exact grades and formulation; request the TDS for the pair you plan to use.
Which other Monolith grades are listed for rail transit coatings?
Besides the recommended system, the catalog application of these grades mentions this field: EH3507.
How can I get the TDS, a sample or formulation support?
Use the Request TDS / Sample form or email martin@monolithchem.com with your application, substrate and target performance. Monolith application engineers will recommend grades and send the technical data sheets.