Rock Wool (Mineral Wool) Blanket
Plain rock wool blanket
It is the normal type, suitable for big diameter pipelines, flat and irregular surfaces, building walls with good thermal insulation and acoustic absorption effects.
The blanket with glass cloth, aluminium foil or wire mesh on facing is available.
Rock wool blanket with aluminium foil facing
The product is designed for circular ducts, small equipment and air-conditioning system pipelines, with properties of good water-resistance, dust-proof, and perfect thermal insulation.
Rock wool blanket with wire mesh
The product is used under conditions of strong vibration and high temperature, also recommended for thermal insulation of boilers, vessels, flanges/ valves and big diameter or large irregular pipelines.
Rock wool blanket with glass cloth Facing
The product is developed for large span equipment and building walls with good dust-proof performance.
Availability of rock wool blanket
| |
Plain Blanket |
With Glass Cloth Facing |
With Wire Mesh |
Thickness
(mm) |
Length (m) |
| 40 |
50 |
60 |
80 |
60 |
80 |
100 |
80 |
100 |
130 |
| kg/m3 |
| 25 |
|
|
|
10 |
|
10 |
10 |
10 |
10 |
10 |
| 30 |
|
|
|
8 |
|
8 |
8 |
8 |
8 |
8 |
| 40 |
|
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
| 50 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
| 60 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
| 75 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
| 80 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
| 100 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
2.5 |
Width: 600mm
| Aluminium foil |
Thickness
(mm) |
Length (m) |
| 60kg/m3 |
80kg/m3 |
100kg/m3 |
| 25 |
|
10 |
10 |
| 30 |
|
8 |
8 |
| 40 |
6 |
6 |
6 |
| 50 |
5 |
5 |
5 |
| 60 |
4 |
4 |
4 |
| 75 |
3 |
3 |
3 |
| 80 |
3 |
3 |
3 |
| 100 |
2.5 |
2.5 |
2.5 |
Width: 600mm, Other size or density on request.
Thermal conductivity of rock wool products (typical figure)
Mean Temp
(oC) |
K-value
(W/m.k) |
| Plain Blanket |
With Glass Cloth or Wire Mesh |
| Thickness |
40 |
50 |
60 |
80 |
60 |
80 |
100 |
130 |
| (mm) |
kg/m3 |
| 50 |
0.043 |
0.041 |
0.039 |
0.038 |
0.039 |
0.038 |
0.037 |
0.037 |
| 100 |
0.054 |
0.049 |
0.046 |
0.044 |
0.046 |
0.044 |
0.043 |
0.043 |
| 150 |
0.068 |
0.061 |
0.058 |
0.053 |
0.058 |
0.053 |
0.051 |
0.050 |
| 200 |
0.086 |
0.074 |
0.071 |
0.064 |
0.071 |
0.064 |
0.060 |
0.058 |
| 250 |
0.106 |
0.090 |
0.088 |
0.076 |
0.088 |
0.076 |
0.071 |
0.067 |
| 300 |
0.131 |
0.109 |
0.106 |
0.091 |
0.106 |
0.091 |
0.084 |
0.080 |
| 350 |
|
0.131 |
0.127 |
0.107 |
0.127 |
0.107 |
0.099 |
0.094 |
| 400 |
|
|
|
0.126 |
|
0.126 |
0.116 |
0.109 |
| Mean Temp(oC) |
K-value(W/m.k) |
| With Aluminium Foil |
| 50 |
0.039 |
| 100 |
0.047 |
| 150 |
0.058 |
| 200 |
0.070 |
| 250 |
0.085 |
Maximum service temperature of rock wool blanket
- Plain Blanket: 450oC (850oF);
- With Glass Cloth: 650oC (1200oF);
- With Aluminium Foil: 250oC (480oF);
- With Wire Mesh: 750oC (1400oF).
Sound Absorption of blanket
| Hz |
Plain Blanket
(Thickness 75mm) |
With Glass Cloth facing
(Thickness 75mm) |
With Wire Mesh
(Thickness 75mm) |
| 125 |
0.29 |
0.29 |
0.29 |
| 259 |
0.79 |
0.80 |
0.78 |
| 500 |
1.10 |
1.10 |
1.11 |
| 1000 |
1.07 |
1.05 |
1.10 |
| 2000 |
1.01 |
1.00 |
1.01 |
| 4000 |
0.99 |
0.98 |
0.98 |
The rock wool blanket is non-combustible, water-repellent, and non-hygroscopic.
The rock wool is neutral or slightly alkaline, and normally not support the growth of molds, fungi and bacteria.
Application
