Gyproc GypWall Plasterboards

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GYPROC AND DONN
Gyproc, Saint-Gobain’s Gypsum Activity. Together with its integrated partner Donn Products, Gyproc will continue to supply the local construction industry with a complete gypsum-based product range. The Saint-Gobain Gypsum Activity is a world leader in the supply of plasterboard and gypsum plasters, serving growing markets for building systems in over 50 countries.

RHINO FIRE RATED BOARDS
Rhino FireStop boards is a gypsum plasterboard with the addition of fibreglass strands and unexfoliated vermiculite into the gypsum core to provide increased fire resistance.
Fire resistance:
Rhino FireStop board provide good fire protection in buildings due to the unique behaviour of their gypsum content when exposed to fire.  Pure gypsum contains nearly 21% chemically combined water of crystallisation and about 79% calcium sulphate which is inert below a temperature of 1300 deg. C. When gypsum protected elements of a structure are expose to fire, the chemically combined water is gradually released in the form of moisture vapour. If a sufficiently high temperature is maintained, eventually all the water of crystallisation will be expelled.