Centrifugal glass wool board is the quartz sand, recycled glass and other raw materials through high temperature melting, the use of centrifugal process made of inorganic fiber material, has A good fire resistance, can meet the standard of A grade non-combustible materials.

The fire resistance limit of centrifugal glass wool board is affected by many factors, such as: bulk weight (density), thickness, composition materials, etc. Next, Utsen insulation material manufacturers will explain the relationship between centrifugal glass wool board volume weight and fire resistance.

Bulk weight refers to the mass per unit volume, usually expressed in kilograms per cubic meter (kg/m³). The fire resistance limit refers to the ability to resist the fire invasion, usually measured by the fire resistance time, such as 120 minutes.

In general, the larger the volume weight of the centrifugal glass wool board, the better its fire resistance is usually. This is because the higher bulk density can make the fibers of the centrifugal glass wool more closely arranged, thereby improving its resistance to heat conduction and flame penetration.

Specifically, the higher volume weight will bring the following advantages to the fire resistance of the centrifugal glass wool board:

1, high volume weight means that more fibers are compressed in the same volume, and the contact point between the fibers increases, thereby improving the thermal resistance performance. This allows the centrifugal glass wool to slow down the conduction rate of heat and extend the fire resistance time when it is subjected to the action of flame.

2. The centrifugal glass wool fibers with high bulk density are arranged more closely, and the mutual support between the fibers is stronger, which helps to prevent the fibers from falling off or cracking. This reduces the permeability of the flame and reduces the likelihood of the fire spreading.

3, high volume weight centrifugal glass wool has a higher density, making it more difficult to be penetrated by the flame. This plays an important role in protecting the structures and materials behind it.

Although the higher bulk density of glass wool usually means better fire resistance, it will also bring some disadvantages, such as: increased weight, increased construction difficulty, greater thermal conductivity, increased cost, etc. Therefore, when choosing centrifugal glass wool board, it is also necessary to judge according to the actual use scenario and needs.