dfe

Catalog

Crude Vermiculite

all fractions on request

Expanded Vermiculite

fraction grain size (mm) density (кg/m3) coefficient
conductivity
(W / m x K)
factor
absorption
at 1000 Hz
0,5
(Micron)
0,25 – 0,71 120 – 150 0,06 0,2
1
(Super Fine)
0,3 – 1,0 100 – 120 0,05 0,38
2
(Fine)
0,71 – 2,0 110 – 120 0,05 0,45
4
(Medium)
1,4 – 4,0 90 – 110 0,048 0,71
8
(Large)
 2,8 – 8,0  85 – 95  0,046  0,8

Vermiculite board

no. option unit description
1 lenght (max) mm 2200
2 width (max) mm 1100
3 strenght mm 10 – 75
4 concentration kg/m³ 350 – 1100
5 tensile strenght: bebding MPa
kg/cm³
1,0(10)- 2,9(29)
6 tensile strenght: compression MPa
kg/cm³
1,2(12) – 3,9(39)
7 thermal conductivity at 25°C Wt/m*K 0,11 – 0,17
8 residual moisture % max 5
9 combustibility / toxicity non
10 application temperature °C -260 bis +1300
11 lineare shrinkage at 600°C % 1
12 fire-retardant performance h 0,5 – 4
13 sound absorption at freq. 500Hz α 0,4 – 0,6