When it comes to applying cement, waterpaints and liquid waterproffing materials on masonry walls, the Weiler 44448 6-1/2″ Masonry Brush is ideal. The brush is made with a tampico fill and 4″ trim length. Ideal for applying cement, waterpaints and liquid waterproffing materials on masonry walls. When you need to apply cement, waterpaints or liquid waterproffing materials onto your masonry walls, equip yourself with the Weiler 44448 6-1/2″ Masonry Brush.