The density of vermiculite bricks ranges from 0.4 to 0.8 g/cm³, with a thermal conductivity at room temperature of 293 to 502.4 J/(m·h·℃) (70 to 120 cal/(m·h·℃)). Compressive strength is <2.45 MPa, and water absorption is approximately 6%.
Typically, granular expanded vermiculite is mixed with an appropriate amount of high-strength binder, lightly pressed into shape, and then dried or baked to form the brick. The thermal conductivity of the binder is generally higher than that of expanded vermiculite. Therefore, while the addition of binder enables new applications for expanded vermiculite, it also reduces its thermal insulation effectiveness.
Product Specifications:
Specifications
Length（mm）
Width（mm）
Thickness（mm）
Density（kg/m3）
Remarks
Standard
< 2400
< 1200
< 50
500-1000
Dimensions and density adjustable within this range。
Maximum
2500
1220
100
1100
Requires special processing
Product Features:
Non-combustible, non-melting, high-temperature resistant
Long-lasting thermal insulation
Non-toxic, smoke-free, environmentally friendly
Superior impact resistance
Excellent dimensional stability and weather resistance
Outstanding resistance to mold and insect damage
Can be sawed, nailed, planed, and drilled; easy to install and construct
Good sound insulation
Applications:
1. Internal insulation layer for fire doors;
2. Thermal insulation and soundproofing interior wall panels;
3. Fire-resistant partition walls;
4. Thermal insulation and heat-shielding layers for aircraft, trains, automobiles, ships, high-temperature kilns, and various other applications.
The vermiculite bricks produced by Shijiazhuang Chenxing Industrial Co., Ltd. are lightweight boards made of natural expanded vermiculite and its inorganic additives, processed through multiple processes. They are high-quality boards developed by aerospace professionals who strive for excellence. At a high temperature of 1100 ℃, it can still maintain its original physical form and chemical properties, and does not release any toxic substances - (fire-resistant, environmentally friendly) is its outstanding characteristic.
