The standard product BASIC is covered by a surface paperboard. As such, it can be surface treated in any traditional way just like gypsum boards. Choose tapered edges for smooth jointing and puttying.
The manufacturer has the sole ownership, liability, and responsibility for the EPD. EPDs within the same product category but from different programs may not be comparable. EPDs of construction products may not be comparable if they do not comply with EN 15804 and if they are not compared in a building context.