GTEC Aqua Board

GTEC Aqua Board

The UK’s first gypsum based board for use in high humidity or wet applications.

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Quick Guide


Ideal as a tile backing board for bathrooms, can also be used as an external sheating board. The board complies with PR EN 15283 Part 1.


The Board is Composed of Aerated Calcium sulphate di-hydrate with liners made from non woven tissue with fillers and fibres enclosed inside the gypsum core. Core and papers are bonded with starch. Edge glue is PVA. The water resistant additive is silicone oil. The core contains a biocide to prevent mould growth. It has a reaction to fire rating of Euroclass A2-s1, d0.


GTEC Aqua Board can be jointed and finished with GTEC Aqua Mix jointing system. In wet areas the boards require priming with GTEC Drywall Sealer prior to decorating.

Sizes Available:

Tapered Edge (mm) Square Edge (mm)
12.5 x 1200 x 2400 12.5 x 1200 x 850
12.5 x 1200 x 2700 12.5 x 1200 x 2400
12.5 x 1200 x 850  
15 x 1200 x 2400  
15 x 1200 x 3000  




Siniat, formerly Lafarge Plasterboard, is one of the UK and Ireland's leading plasterboard producers with factories in Ferrybridge and Bristol.