Waterborne Aluminum Wheel Hub Coatings – Recommended Monolith Resin System
Aluminum wheels combine a decorative finish with exposure to road salt, brake heat and cleaning, and their coating lines often combine powder and liquid layers. Waterborne polyester resins are used in baking coatings that work alongside powder primers and resist yellowing during bake.
This page summarizes the Monolith waterborne system recommended for aluminum wheel hub 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
- Good compatibility with powder coatings
- Resistance to high temperature yellowing
- Good flexibility
Key performance needs
- Compatibility with powder coating layers in the same system
- Resistance to yellowing at high baking temperatures
- Flexibility and good adhesion on aluminum
- Decorative appearance, including metallic finishes
- Resistance to road salt and cleaning agents
Monolith grades for aluminum wheel hub coatings
| Grade | Type | Catalog application | Listed as |
|---|---|---|---|
| PKA607 | Water-soluble polyester resin | Aluminum wheels, automotive OEM PS coat and basecoat | Recommended system |
| PKA609 | Self-emulsifying polyester resin | Steel drum exterior paint, industrial baking paint, steel wheel hub paint | Recommended system |
| PKA602 | Self-emulsifying polyester resin | Bicycle paint, auto parts, wheel hub paint | Catalog application |
| PKA603 | Self-emulsifying polyester resin | Bicycle paint, auto parts, wheel hub paint | Catalog application |
| PKA615 | Polyester dispersion | Bicycle paint, auto parts, wheel hub paint | Catalog application |
All parameters are for reference and based on the COA at the time of shipment.
Related applications
All applications · Automotive OEM Coatings · Bicycle & E-bike Coatings · Tricycle 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 aluminum wheel hub coatings?
The Monolith catalog recommends primer: PKA607 · PKA609; topcoat: PKA607 · PKA609. “+” joins grades used together; “·” and “/” separate alternative options.
Can the same grade be used as primer and topcoat for aluminum wheel hub coatings?
Yes, the Monolith catalog lists the same grades (PKA607 · PKA609) for both primer and topcoat in aluminum wheel hub coatings. Confirm the coating structure and film build for your specification with our engineers.
Which other Monolith grades are listed for aluminum wheel hub coatings?
Besides the recommended system, the catalog application of these grades mentions this field: PKA602, PKA603, PKA615.
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.