GTEC Thermal XP Board

GTEC Thermal XP Board

A board in which provides thermal resistance.

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Quick Guide


GTEC Standard Board laminated to extruded polystyrene to create a product which offers a 600% improvement in insulation over standard plasterboard prevents cold spots where surface condensation could form.


Aerated Calcium sulphate di-hydrate enclosed inside a tough paper with bound edges. Core and papers are bonded with starch. Edge glue is PVA. Extruded polystyrene (XPS) is factory bonded to this 9.5 mm board with various thicknesses of this rigid foam using PVA adhesive.


GTEC Thermal XP Board can be jointed and finished with GTEC Jointing Systems. The boards require priming with GTEC Universal Sealer prior to decorating.

Sizes Available:

Tapered Edge (mm)
30 x 1200 x 2400
40 x 1200 x 2400
50 x 1200 x 2400
60 x 1200 x 2400
70 x 1200 x 2400




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