A simple, lightweight and cost-effective board. Standards: BS EN 520 Type A (formerly BS 1230 Type 1) Composition: Aerated calcium sulphate di-hydrate enclosed inside a tough paper with bound edges. Core and papers bonded with starch and PVA edge glue. Reaction to fire: Euroclass A2-s1, d0 Finishing: GTEC Standard Board can be jointed and finished with the GTEC Joining Systems. The boards require priming with GTEC Universal Sealer prior to decorating.