FIRE-RETARDANT COMPOSITION AND MANUFACTURING PROCESS THEREOF, AND INSULATION PRODUCT COMPRISING THE FIRE-RETARDANT COMPOSITION AND MANUFACTURING PROCESS THEREOF

摘要

According to one aspect, the invention relates to a fire-retardant composition containing colloidal silica as a binder, huntite (Mg3Ca(CO3)4) or hydromagnesite (Mg5(CO3)4(OH)2·4H2O) or their combination (Mg3Ca(CO3)4/Mg 5 (CO 3 ) 4 (OH) 2 ·4H 2 O) as a fire retardant, mineral wool fibres, and water. The invention further relates to a process for manufacturing the above said fire-retardant composition and a mineral wool-based insulation product (B) having at least one mineral wool-based layer (12, 12") and the above said fire-retardant composition (22) applied as a paste onto at least one surface of at least one mineral wool-based layer (12, 12") of the mineral wool-based insulation product (B).