Gypra (GRG) Column Casings
glass reinforced gypsum
Manufacture
Gypra GRG column casings are manufactured using moulding techniques, combining hard cast gypsum plaster with layers of pre-cut glass fibre reinforcement matting to create stable, rigid and self-supporting casings with a smooth surface finish suitable for on-site decoration.
Gypra column casings are normally specified as circular casings although as they are produced from moulds, they can be manufactured to meet any individual specifications, including square and rectangular as well as virtually any custom shape, making them highly versatile.
Installation
Gypra casings are normally supplied as two halves, which are fixed to structural columns with timber battens and secured with screw fixings. A seamless finish is created with a 'penny-joint', which is then filled on site prior to painting and finishing.
Fire performance
Gypra column casings can be regarded as a non-combustible building component, achieving a Class 'O' spread of flame. Structural elements require additional protection from a proprietary fire protection system or intumescent coating.
Location and use
Gypra casings are designed for interior decorative use only and can be specified with a stainless steel or brushed aluminium skirting collar to give increased impact resistance and improved wear characteristics.
Finish options
All Gypra casings are supplied unfinished, ready for painting or decoration on site.
Please click here to view the 'Finishes' selection guide for more information.
Technical drawing downloads
A range of technical drawings in both PDF and DWG file formats are available. Please click here to visit our download page and select the drawings you require.
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