Aerated calcium sulphate di-hydrate with fillers, glass fibres, wooden fibres (8% of dry mass) and silicone oil enclosed inside a tough paper with bound edges. Core and papers are bonded with starch. PVA edge glue.
Aerated calcium sulphate di-hydrate with fillers, glass fibres, wooden fibres (8% of dry mass) and silicone oil enclosed inside a tough paper with bound edges. Core and papers are bonded with starch. PVA edge glue.