Crosslinker is added to the WR-LPU for increasing the performance properties. These include chemical resistance, scratch, mar and water resistance.
Add the crosslinker to the WR-LPU at 8 drops per ounce of paint for smaller batches. The crosslinker is effective in the paint for 24 hours. After 24 hours, the remaining paint can be renewed with a second addition of the crosslinker. Paint that is not used within 24 hours must be discarded.