One stop shop chemical grout injection materials supplier
With the development of construction engineering, concrete is widely used in various projects. However, concrete cracks often appear in the fields of underground engineering and tunnels. In order to solve water leakage, chemical grouting materials have become the key material in the concrete engineering.
Chemical polyurethane grouting resin is the most common and frequently used material in building waterproofing maintenance and crack leak repair. We can supply Polyurethane resin, acrylic gel.
Here is our main products list but not limited.
Chemical grouting materials are becoming an important material in the field of concrete waterproofing due to their advantages such as high efficiency, environmental protection, safety and easy construction. Whether in underground projects, tunnel construction or water conservancy facilities, chemical grouting injection materials can provide reliable waterproofing solutions.
Polyurethane grouting resin can be divided into two categories based on material properties.
OPU: oil based hydrophobic polyurethane
WPU: water based hydrophilic polyurethane
Water based polyurethane expands when contact with water and becomes an elastic gel like solidified body, similar in state to a sponge and with a certain degree of elasticity. The oil based polyurethane grouting resin will become a hard solid with cell after being expanded contact with water.
Polyurethane foam have water based hydrophilic resin and oil based hydrophobic resin. The performance of polyurethane is mainly measured by the following indicators.
Gel time: the time when the hydrophilic polyurethane changes from liquid to gel after mixing with a certain proportion of water.