Profile: Permaban Ltd specializes in providing industrial floor solutions. We provide floor design, installation, manufacture, floor repair, maintenance and aftercare services. Dry-shake toppings are cementitious dry powder blends mixed with special aggregates selected for their toughness and particle shape. These floor toppings are applied to the surface of newly laid concrete to improve durability and the appearance of the finished floor surface. We provide large area construction where large floors up to several thousand square meters in area can be laid in a continuous operation. Fixed forms are used only at the edges of the construction at intervals of typically 50m. Concrete is discharged into the floor area and spread either manually or by machine. After the floor has been laid and finished, it is sub-divided into panels by sawn restrained-movement joints to relieve shrinkage-induced stresses, typically on a 6m grid in both directions. Typically, these free-movement joints open by 4-5mm.