Coarse-grained clay finishing plaster reinforced with specific polymers. Coarse grained finishing clay plaster called MultiTerra Smooth produced by Matteo Brioni – Intonachino materico a base di argille MultiTerra Liscio prodotto da Matteo Brioni MultiTerra Plus is suitable for coating vertical surfaces for indoor environments and can be applied directly on walls, finished rough plaster and panels also in direct contact with water and/or rising damp. In some case the substrate on which you want to apply the product can require a primer or a base coat. MultiTerra Plus is available in 2 different texture clay versions: Smooth and Structured. Bespoke finishes of each version of this clay product are also available. MultiTerra Plus is mainly composed of clay that is the natural building material par excellence. Furthermore, depending on the mineral content in its composition, clay has several properties: it is remineralizing, antiseptic and antibacterial, anti-inflammatory and analgesic, absorbent and anti-toxic, it soothes sore muscles, as well as purifies and softens skin.