Technical Overview
Gainike Inorganic Foam Spraying Material is an inorganic fire prevention and extinguishing material for plugging air leakage, mainly used for spraying on air leakage cracks in roadway sides and oxygen-isolating spraying on exposed coal sides. The material has high compressive strength, no obvious exothermic reaction, and neither burns nor supports combustion. The construction process is wet operation, producing no dust. Compared with organic polymer materials, this material is low in price, inherently safe, and meets the requirements of safety, light weight, sealing, and environmental protection. Its Application Process is simple: when in use, it is mixed with water in a certain proportion to form a slurry, which is pumped out by a grouting pump. Compressed air is introduced into the injector to form foam, which is then sprayed on the target area. The final formed inorganic foam can effectively seal the surface cracks of coal and rock roadways, preventing air leakage and the overflow of harmful gases.

Technical Characteristics
(1) Strong adhesion: It adheres highly to the surfaces of coal and rock mass, metal, wood, etc., with strong adhesion.
(2) Excellent rust resistance: It is firm and does not crack, and has good rust resistance.
(3) Strong weathering resistance: It has a good anti-seepage function to ensure that the roadway surface does not weather.
(4) Safe and environmentally friendly: The material is non-toxic and harmless, without the release of irritating gases. It adopts a wet construction process and does not affect the production and working environment.
(5) Simple process and low cost: Compared with other organic polymer materials and multi-component materials, the investment in this material, equipment and personnel is relatively low.

Application Location
(1) Spraying and blocking of the roof and sides of coal roadways or rock roadways;
(2) Spraying and blocking of coal pillars in the two roadways of the working face;
(3) Spraying of the roof of gob-side entry retaining roadways and the roadway sides on the adjacent gob side;
(4) Spraying of temporary or permanent airtight walls and surrounding rock.

Application Process
Powder and water are added to the pulping system in a certain proportion, and then sprayed onto the roadway surface via a shotcrete machine.