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US 2023/0416152 A1Published application
Plaster composition for fire resistant plasterboard
AssigneeEtex Building Performance International SAS
InventorsDaniel MARTIN, Jean-Philippe BOISVERT
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Abstract
The present invention concerns a plaster composition for manufacturing of a fire resistant plasterboard, said composition comprising hydratable calcium sulphate, water with a water/hydratable calcium sulphate ratio between 0.50 and 1.00 and the following components: −0.5-10 wt. % of SiO2 particles having a particle size distribution d50>10 μm; −2.5-10 wt. % of CaCO3; −0.2-2.5 wt. % of polysiloxane wherein the wt. % are expressed relative to the weight of the hydratable calcium sulphate.
Claims15
A plaster composition for fire resistant plasterboard, comprising
- hydratable calcium sulphate, water with a water/hydratable calcium sulphate ratio between 0.50 and 1.00, and the following components,
- 0.5-10 wt. % of SiO2 particles having a particle size distribution d50>10 μm,
- 2.5-10 wt. % of CaCO3, and
- 0.2-2.5 wt. % of polysiloxane, wherein the wt. % is relative to the weight of the hydratable calcium sulphate.
1 more element
Dependencies are inferred from the claim text.