Dongguan city, kingda plastic insulation board co., LTD
Contact: manager zhao
Mobile phone: 13509011897
Telephone:
Fax:
Email:1440816890@qq.com
Website:www.qdjnkj.com
Address: Zhongtang town Zhancui Nan di Industrial area
Qanda B1 extruded board
specification: Model: The price：
Product description
B1 extruded board
Qindar extrusion XPS extrusion heat shield
Qinda extrusion board is a kind of high density rigid foam board (XPS) made of polystyrene resin plus other auxiliary materials and polymer, which is mixed by heating and injected with catalyst, and then extruded and pressed into shape. This unique closed-cell honeycomb structure makes the qinta plate have extremely low water absorption (almost no absorption), low thermal conductivity, high compressive resistance, anti-aging (almost no aging decomposition in normal use).
Refractory B1 extruded board can also be lit, with combustible B2 board what is the difference?
First of all, it has been explained above that the extruded board belongs to combustible materials, so no matter whether the combustible B2 board or the refractory B1 board encounters the open flame, it is a normal phenomenon. However, it is important to note that the extruded sheet has a very good self-extinguishing characteristic. Moreover, the self-extinguishing property of refractory B1 class board is better than that of combustible B2 class board. As for the difference between combustible B2 class board and refractory B1 class board before, according to gb8624-1997 "classification method of combustion performance of building materials". In addition to meeting the flammability level B2 standard, class B1 materials should also meet the requirements of flue gas temperature and smoke density specified in the standard. Generally, a simple lighter test is conducted on the extruded board, and it is difficult to see the obvious difference between combustible B2 and refractory B1, but at least it can be seen that the refractory B1 board after leaving the fire is shorter than combustible B2 board flame spread length, shorter combustion time and less smoke.
