If you drive into any small town in the yucatan, you will see the traditional block and mortar homes. You will also see the traditional methods of applying mortar to the surface. The abaniles flick the mortar, with varing degrees of accuracy, to make it stick to the target surface. This is not the fastest method of applying mortar, but it is the best method, if you are applying by hand. However, when we build with Covintec panels, we build much faster than standard block. So it makes no sense to build the walls of a house fast, then slow down while the mortar is flicked by hand onto the walls. We are speeding up the process, by applying the mortar via compressed air guns and soon by way of a mortar pump, so that it applies it continiously. You might be asking who cares, but this is important. The mortar guns apply the mortar at 95 psi, which gives a good compaction to the mortar, making it air tight and dense. This means strength, this is in part what makes a Covintec panel house hurricane proof. It also means we can add various additives to the mortar and apply them rapidly, as some of the corrosion inhibitors cause mortar to harden, faster than you can manually throw it. The mortar guns can spray the mortar as fast as you can mix it. If you are flicking it manually, it has to be mixed in small batches and water added to stop it from hardening. Adding water is a big problem as it changes the actual mix ratio, causing problems later. The more water in any cement product and the weaker the strength of the product. The other issue is wasteage. Mortar is not cheap and you want to make sure it stays on the wall.
Note in the videos, how little falls to the ground, this is a function of the speed of being shot from the guns.