Comparison of B1 and B2 grade rubber insulation
2024-08-02 14:53:09
01
7 Jan 2019
Rubber-plastic insulation cotton is a commonly used building insulation material and is widely used in building exterior walls, roofs, floors, pipes and other parts. At present, the common fire protection grades of rubber and plastic insulation cotton on the market are mainly divided into two types: B1 level and B2 level. So which of these two fire protection grades of rubber and plastic insulation cotton is better?
First of all, B1 grade rubber and plastic insulation cotton has a higher oxygen index content than B2 grade and has higher flame retardant properties. That is, when burned by an open flame, it is not easy to spontaneously ignite, the flame spreads slowly, and will extinguish itself. This grade of rubber-plastic insulation cotton is suitable for high-rise buildings, commercial complexes, hospitals and other places that have higher requirements for fire protection, and can improve the safety and reliability of buildings.
In contrast, B2 grade rubber-plastic insulation cotton has a lower fire protection level and cannot extinguish the flame by itself. The fire spreads easily when exposed to open flames. Although it can meet the fire protection requirements of some places, it cannot meet the needs of high-rise buildings, commercial complexes, hospitals and other places that have higher requirements for fire protection levels. Therefore, in places with high safety and reliability requirements, B1 grade rubber and plastic insulation cotton should be selected as much as possible.
01
7 Jan 2019
Secondly, B1 grade rubber and plastic insulation cotton adopts better foaming technology, and the rubber and plastic products produced have uniform and fine cells and a high closed cell rate. B2 grade rubber and plastic insulation cotton has larger cells and lower closed cell ratio. Although it has certain thermal insulation performance, its thermal insulation effect is slightly inferior to that of B1 grade when the thickness is the same.
01
7 Jan 2019
Although B1 grade rubber-plastic insulation cotton is better in terms of fire protection, thermal insulation, etc., its price is usually higher. The price of B2 grade rubber and plastic insulation cotton is relatively low, which is also its advantage.
B1 grade rubber and plastic insulation cotton has basically the same performance as B2 grade rubber and plastic insulation cotton, but B1 grade rubber and plastic insulation cotton is safer and more reliable, and is suitable for places with higher requirements for fire protection, such as high-rise buildings, commercial complexes, Hospital etc. B2 grade rubber and plastic insulation cotton also has a price advantage. Therefore, when choosing, you should comprehensively consider the actual needs and budget, choose rubber and plastic insulation cotton that meets the required fire protection level, and install and use it correctly in accordance with the standards.