When brushing Motor Coater, thinning is usually not required. If the paint feels thick, reduce it 5 to 10 percent with KBS #1 Thinner or xylene, both slow-evaporating solvents that keep the paint workable long enough to brush out smoothly.
Brushing Technique
Apply Motor Coater in thin coats and let each brush stroke flow out on its own. Load the brush, lay the paint down, and move on to the next section rather than working the same area repeatedly. Reworking a wet area forces solvent out of the film early and can leave visible brush marks that do not level out.
Tip: If you do thin the paint, mix a small test batch first. Too much thinner shortens open time and can cause the finish to dry before brush marks flow out.
For full surface prep, coat counts, and cure times, see the complete Motor Coater Application Directions.
Frequently Asked Questions: Brushing Motor Coater
Use only KBS #1 Thinner or xylene. Both are slow-evaporating solvents that keep the paint workable long enough to brush out. Fast-evaporating solvents will not give you the open time you need for a smooth brushed finish.
No, Motor Coater is formulated to brush straight from the can in most conditions. Thin it 5 to 10 percent only if the paint feels too thick to lay down smoothly, especially in cooler temperatures.
Brush marks usually come from overworking the paint. Apply a coat, let the brush strokes flow out on their own, and move to the next section. Going back over a partially set area forces solvent out early and locks the marks in instead of letting them level.
No. Use only KBS #1 Thinner or xylene for reducing and clean-up. Faster solvents like lacquer thinner or acetone evaporate too quickly for brushing and can affect how the finish flows and cures.
Still have questions about brushing Motor Coater? Contact us for help.
