They are great for textured substrates, concrete blocks, bricks, and fences or embossed wallpaper. Our 15mm Minis are ready for your toughest painting challenges! The key to achieving the smoothest finish is to make sure that the painted surface is prepared well – holes filled, surface well cleaned, and dried. Also, before starting using our rollers, always use water to “rinse & spin before you begin” and you will achieve the best finish right from the start. Besides, the post-painting cleaning process will be much easier too!