Since our boards are mostly made of natural fibres, they change colour after they have been laid. Boards
made of our
GCC HOLZart material (with the exception of the SIGNUM board) usually darken over time,
while boards made of
GCC HARZart generally become lighter in colour. Depending on how much sunlight
they are exposed to, the products acquire their final, natural, and lasting shade after 6–8 months.
The surfaces shown here illustrate the process of colour development. The corresponding board structures can be found in the product insert.