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Silicate-Modified Polyurethane Foam Material for Underground Engineering Filling - Ruinuo Filling Material (CT PU)
Product Description
This product has obtained the national invention patent (patent number: ZL 2014 1 0835097.8), does not release toxic and harmful gas, large volume application is safe and reliable.
Superior volume stability of cured foam: Compressible and stress-adaptable
Flame-retardant foam with low smoke emission at high temperatures
Ideal for water-bearing conditions (filling, consolidation, leak sealing)
Applications
Rapid filling of roof cavities or loose/fractured coal/rock masses in underground engineering
Sealing abandoned cavities (e.g., goafs)
Fracture grouting to prevent air leakage in coal/rock strata
Fast consolidation of karst caves/tunnels to stabilize surrounding rock
Product technical parameters
Product Characteristics
Performance Metrics
Component A
Component B
Appearance
Colorless transparent liquid
Dark brown liquid
Mixing Ratio (by volume)
1:1
Flash Point (°C)
Non-flammable (inorganic material)
>150
Peak Reaction Temperature (°C)
<90
Reaction Properties
Unaffected by water injection; adjustable curing time
Foam Termination Time
10–80 (adjustable per project needs)
Expansion Ratio (times)
10–30 (adjustable per project needs)
Compressive Strength (MPa)
>0.1 (10% deformation),
Compression Deformation (%)
≥70
Oxygen Index
≥35
Flame Retardancy & Antistatic Performance
Complies with MT113-1995 technical standard for polymer products in coal mines
The above data are based on laboratory test results. Actual performance may vary slightly depending on field conditions.
(at 23±2°C, seconds)
>0.1 (30% deformation),
>0.4 (70% deformation)
Storage and packaging
- The product is packaged in 25L plastic barrel or iron barrel, and the packaging is not recycled.
- The product should be stored in a dry, cool and ventilated place, and must not be exposed to sun or direct rain. The storage temperature range is 0-35℃. Materials below-10℃ are easy to freeze, so it should be stored in a frost-proof place.
- The shelf life of the product is 6~12 months.
