Air slide canvass (belt/fabric) is used for pneumatic conveyors of bulk materials. It is an indispensable part of cement plant, chemical industry, metallurgical industry, bulk cement tank trucks, bulk cement tank ship and fixed cement tanks. Air slide canvass are made of polyester and aramide. Polyester is naturally delivered with welded edges, whereas the edges of the aramide fabric are sealed by a heat-resistant impregnation. These are available in various weavings, thickness and in the air permeability needed for use. Polyester could also be made anti-static.