(One brand name is Chimney RX Brushable Crown Repair; offered because of the gallon at saversystems.com) Include your complete crown then easy it with a paintbrush (Photo 2). Wait around till the sealer dries tacky to the contact, then utilize a next coat with a brush. Clear up with water. https://emilianofkfgz.blogocial.com/the-smart-trick-of-media-wall-fireplace-that-nobody-is-discussing-64203324