Yes. KBS MAXX is a two-component polyurethane that cures into a chemically cross-linked film, rated 2H pencil hardness at 72 hours and 160 inch-pounds of direct and indirect impact. That combination is what lets it resist scratching and chipping in daily use.
Why a 2K Coating Holds Up
KBS MAXX ships as a Base and a separate MAXX Activator. When you mix them, the isocyanate activator reacts with the base and the two chemically cross-link as the film cures. That cross-linked film is where KBS MAXX gets its hardness, chemical resistance, UV stability, and impact resistance.
KBS MAXX is also single stage. It delivers base coat and clear coat performance in one application, so the durable layer is the color itself and no separate clear coat is needed.
The Test Data
| Pencil hardness | 2H at 72 hours |
|---|---|
| Impact, direct and indirect | 160 inch-pounds |
| QUV 313B | 1,000 hours |
| Heat resistance | Rated to 300 degrees F |
| MEK, 100 double rubs | Pass at 24 hours |
| Salt spray (ASTM B117) | 1,000 hours alone; 2,000 hours over RustSeal |
| Lubricating and cutting oils | Excellent |
| 10 percent hydrochloric, acetic acid, sodium hydroxide | Excellent |
| Skydrol | 24 hours at 150 degrees F, no discoloration |
| JP 5 jet fuel | Pass at 70 degrees F for 7 days |
| Water immersion | Excellent |
Source: the technical data on the KBS MAXX directions.
Getting the Most Durability Out of It
- Clean the surface well with KBS Klean so it is free of grease, dirt, oil, and rust.
- Over bare or rusted steel, use the KBS 3-Step System of KBS Klean, RustBlast, and RustSeal first. That is what takes the salt spray rating from 1,000 to 2,000 hours.
- Mix the Base mechanically before adding the Activator. KBS MAXX is high solids, and the directions call mixing well the key to long term durability and appearance. See how to mix KBS MAXX.
- Apply 1.5 to 2.0 mils dry film thickness per coat.
Frequently Asked Questions: KBS MAXX Durability
Still have questions about KBS MAXX? Contact us for help.
