As part of fitting a semi-integrated dishwasher I’ve had to reduce the height of the kickboard to allow the dishwasher door panel to clear it. This means that the MDF kickboard now has an exposed upper edge which any water falling from the counter will soak into. Can anyone suggest the best way of sealing the edge of this MDF panel against water? It’s not easily visible so I’m not worried about matching paint colours with the grey front.