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ventilation ducts with external and internal fire

the OISTER 100 MAT consists of a rock mineral wool mat stitched onto wire mesh and faced with reinforced aluminium foil. The OISTER 100 MAT is specifically designed to guarantee maximum fire protection with the minimum possible weight and thickness with external and internal fire EN 1366-1.
VENTILATION DUCTS Masonry or plasterboard walls Floor slabs
The contents of this page are summarised from the official technical data sheet PDF, which remains the reference document.