Oil on a cement slab? Or coal?
Cement board is a substrate I like because it is stable, but unfortunately it has to weigh something. This invention of recent years is made up of three components: cement, water and cotton fibre (responsible for the reinforcement). I use 3.5 mm thick slabs for the 120 × 80 cm format.
When the first plates were brought to me, I grabbed my head. How do you cut these things? I couldn’t find a tool on the internet that could cut 120 × 240 cm sheets evenly. In the end, I called the manufacturer. The technologist there recommended a special saw which only has a few teeth crosswise, literally… four! Four.
Cement board
