Blowing agent for foam concrete Sofir-PB is a liquid related to biodegradable foaming agents, low toxicity is corresponding to the 4 class of danger, it is non-explosive, difficult to fire and the temperature of autoignition is 430 ° С. Designed to produce foam concrete of different brands. Depending on the ratio of constituent components, foam concrete can be heat-insulating or structural. In the first case, its bulk density is 400-600 kg cubic meters, and its strength is 0.5-1.0 MPa, in the second 800-1200 kg cubic meters and 3.0-5.0 MPa, respectively. This material meets all the requirements of the device self-supporting walls and insulating layers of partitions and ceilings for low-rise buildings. The strength characteristics and bulk density of foam concrete are set by changing the amount of added foam and the ratio of the proportion of cement and the inert filler used (sand, ash, etc.). Blowing agent for foam concrete Sofir is designed to produce foam concrete of various brands. Consumption of blowing agent is 0, 9 - 1, 2 l for the production of 1 cubic meter of foam concrete. Characteristics of blowing agent  

№ n/n	The name of indicators	Normative values
1	Density at 20 C, kg / m.cub., within	1000-1200
2	The hydrogen ion concentration index (PH)	7,5-10,0
3	Multiplicity of foam: -low, not more than	20
4	The pour point,С	-3
5	Foam stability, sec, not less than	240
6	Pores are homogeneous, shallow, closed structure