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Insulating Products

Shengzhou Huali Diatomite Products Co., LtdThe diatomaceous earth is the main material of Huali CD™ Diatomite Insulating Products, produced after mixing, extrusion forming, drying, roasting and grinding. We have three types: Insulating bricks, Insulating particles, and Insulating powder.

A. Shaped insulating products—diatomite bricks

Products Properties CD-0.5 CD-0.6 CD-0.7 CD-0.8 CD-1.0
Bulk density g/cm3 ≤0.5 ≤0.6 ≤0.7 ≤0.8 ≤1.0
Cold crushing strength kg/cm2 ≥8 ≥12 ≥20 ≥35 ≥50
Reheat shrinkage % at 900°C×8hrs 0.5 0.5 0.5 0.5 0.5
Thermal conductivity W/(M.K)at 300°C mean 0.11 0.15 0.18 0.20 0.23
Max service temp °C 900 900 900 900 900
Chemical composition %
SiO2
Al2O3
Fe2O3
 
71.5 71.0 70.5 70.0 70.0
16.5 17.0 17.5 18.0 18.0
4.0 4.2 4.5 5.0 5.0

Typical size available: mm

Standard Arch Wedge Key
    T38 T39   T19 T20   T43 T44
Length  230   230 230   230 230   230 230
Width   114   114 114   114 114 a 114 114
Width             b 96 76
Thickness a 65 65 a 65 65   65 65
Thickness b 55 45 b 55 45      

B.Unshaped thermal insulating products

Properties
Products
Grade Appearance Bulk density g/cm3 Max service
Temp. °C
Thermal conductivity W/M.K at 300°C mean Size mm
CD530 Calcined Powder 0.38 900 ≤0.10 0.05-0.25
CD630 Calcined graininess 0.50 900 ≤0.13 1-10