GIAN Anti-slip. Safety cast in concrete GIAN anti-slip formliners : attractive, thin texture mat adhered inside concrete mould GIAN is the name of the innovative texture mat from Compañero. This texture mat is easy to handle and can be used repeatedly. GIAN 7 dot with sandblast texture (29 mm) The rough surface provides a better grip when slippery, while the groove between the dots (around 29 mm) funnels water off quickly. The rough texture and water drainage effectively prevent aquaplaning. The round, attractive design of the GIAN 7 dots gives the concrete a softer effect, making this texture suitable for use in almost any type of building.