Rock wool blanket is made of inorganic fiber. It is a good thermal insulation material with low coefficient of thermal conductivity. The products are classified into soft felt, wire fabric felt, fiber glass fabric felt, aluminum foil felt. It is widely used for large and medium tubes, medium and small tanks as well as industrial equipments with arc surface. It has good functions of thermal insulation, sound absorption, dustproofing and waterproofing. Specifications of rock wool blanket Width Thickness Polishing blanket Fiber glass fabric seam blanket mm mm Length (m) Length(m) 40 Kg/ m³ 50 Kg/ m³ 60 Kg/ m³ 80 Kg/ m³ 60 Kg/ m³ 80 Kg/ m³ 100 Kg/ m³ 600-630 30 40 50 60 75 80 100 5 4 3 3 2.5 6 5 4 3 3 2.5 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 Width Thickness Metal wire fabric seam blanket Aluminum foil blanket mm mm Length (m) Length(m) 80 Kg/ m³ 100 Kg/ m³ 130 Kg/ m³ 60 Kg/ m³ 80 Kg/ m³ 100 Kg/ m³ 600-630 30 40 50 60 75 80 100 8 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 8 6 5 4 3 3 2.5 l Special specification can be made according to customers’ requirements. Part physical properties of rock wool blanket Coefficient of Thermal Conductivity W/mK (Average Temperature 70±5°C) Temperature for Shrinkage Under Hot Load °C Organic Matter Content % Incombustibility Shot Content % Diameter of Fiber um ≤0.044 400-650 ≤1.5 Class A ≤10 ≤7 Limit tolerance of mineral (rock) wool blanket Length mm Limit tolerance mm Width mm Limit tolerance mm Thickness mm Limit tolerance mm Limit tolerance of density % 2500-8000 ±20 600-630 +10,0 30-50 60 70-100 +10,2 +12,3 +14, -4 +18, -6 ±15