Kirtbag carving mix can be used with 60lb mortar mix. Now you can use mason mix and mortar mix. Kirtbag is a 20lb bag of material that is added to a mortar mix/mason mix to make it into a carvable vertical mix. It has great qualities. Its easily troweled, textured, and is very sticky. You can virtually make this mix do whatever you want it to do. It can be put on an inch or three to four inches thick at on time. This is a non lightweight mix that has alot of body and is a dream to work with.… Continue