This product is a novel, low-temperature reactive, halogen-free flame-retardant, two-component organic polyurethane resin grouting material.

Component A: Primarily composed of polyether polyol and special flame retardants.

Component B: Primarily composed of polymeric MDI and special flame retardants.

Approved under:

"Safety Management Regulations for Reactive Polymer Materials in Coal Mines (Trial)"

"Supplementary Safety Technical Requirements and Certification Management for Reactive Polymer Materials in Coal Mines"

Certified by ANSI National Center with Mine Product Safety Certification (No.: MIF210073).

Field Application

Injected at a 1:1 volume ratio via a dual-component pneumatic grouting pump into loose or fractured coal/rock masses. The slurry rapidly reacts to form a high-strength, high-toughness polymer resin solid, binding fragmented coal/rock into a continuous load-bearing structure, enhancing stability and restoring structural integrity.

Core Technology Protected by China National Invention Patent (No.: ZL 2018 1 0941683.9).

Key Features

• High permeability, strong adhesion, rapid strength development

• Low reaction temperature, high flame-retardant grade, free of harmful halogenated retardants, exceptional safety

• No secondary disasters (e.g., spontaneous combustion) even with large-volume grouting

• High intrinsic strength and superior toughness, adaptable to dynamic pressure changes in surrounding rock.

scope of application

• Rapid consolidation of loose/fractured coal/rock in mining faces

• Pre-reinforcement for large faults, fractured zones, or collapse columns ahead of excavation

• Quick stabilization of broken strata in roadways, improving overall stability and load-bearing capacity

Technical Specifications of Reno Reinforcement Material (JG PU)

*(Compliant with AQ 1089-2020 and Enterprise Standards)*

Property	Technical Index
	Component A	Component B
Appearance	Colorless or pale yellow liquid	Brown liquid
Viscosity (mPa·s)	200–400	200–400
Flash Point (°C)	>150	>150
Curing Time (s)	60–150 (after mixing)
Peak Reaction Temp. (°C)	<100
Expansion Ratio	≥1× (no foaming-induced strength loss in wet coal/rock)
Oxygen Index	≥28%
Compressive Strength (MPa)	>40
Tensile Strength (MPa)	≥15
Shear Strength (MPa)	≥15
Bond Strength (MPa)	≥4
Flame Retardancy	Complies with MT113-1995 for mining polymers

Note: Data based on laboratory tests; actual performance may vary under field conditions.

Storage and Packaging

· This product is sealed in 25L plastic or iron drums, and the packaging is non-returnable.

· The product should be stored in a dry, cool, and well-ventilated area, protected from direct sunlight and rain. The recommended storage temperature range is 5–35°C. The shelf life of the product is 6–12 months.