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 8 sandblast rib (20 mm-wide sandblast rib) This elegant concrete texture can be used for a wide range of applications. The 20 mm-wide sandblast rib positioned diametrically opposite to the walking direction is interrupted every 10 millimetres. The rough sections effectively combat aquaplaning, while the limited depth and width of the groove in the GIAN 8 sandblast rib prevents wheelchair and motorised scooter users from experiencing bumps. In other words, no vibrations are felt when crossing the prefab concrete. The GIAN 8 sandblast rib is a variation on the commonly used texture in natural stone. It gives a luxurious look to stairs, walkways, pedestrian bridge surfaces, and so on.