Mineralwool board specification With fine heat insulation property and sound absorption effect it is applicable to big sizes pipelines,constructed wall and roof. The product is elastic,light weighted and could be rolled up and folded. Its bulk density 60-120kg/m3. Thickness 30-100mm. Width 1000mm, Length 1000-5000mm. Heat conduct coeffcient:0.030-0.044w/m.k Slag inclusion content: less than 12%. Incombustibility: A Fiber dia.: 4-7 Service temp.: 268-600 C degree Acidity coeffcient: more than 1.5 Moisture rate: less than 5% Hydrophobicity: more than 98%