Unexpected water ingress and poor ground conditions during mining and tunnelling operations can cause significant problems for underground contractors. Underground voids and cracks can cause water ingress, causing damage to infrastructure and safety concerns. Water ingress can also harm the mining equipment and products and cause mine workings to deteriorate. Underground mining companies may face costly and disastrous consequences as a result.

Polyurethane Injection Resin Systems offer higher penetration rates than cement based materials. Polyurethane injection resins can seal, stabilize or strengthen cracks and joints, thanks to their variety of flexibility and rigidity, and adjustable reaction times at different temperatures. These products offer solutions to stop running water by reacting quickly when in contact with water. These fast curing times and high early strengths provide exceptional resistance to pressurized water ingress while stopping water ingress under harsh conditions.

PURIN offers 2 different types of resin series, which are one-component products with catalyst and two-component products. One-component hydrophilic products are used to stop the water coming through cracks. After that, two-component products are recommended to use to fill the smaller fissures occur in mines and tunnels. Two-component products provide permanent sealing after using one-component products. Different injection products can be used depending project or the application technique. Please contact our PURIN technical experts for more information on the best product for your situation.

Choosing the right product according to the application area is crucial, especially in coal mines. Coal catches fire at over 120oC. Therefore, the reaction heat of the products to be used is very important. At this point, phenolic, silicate and polyurethane injection types are used.