Cavity and void filling are used to consolidate the fractured strata and stabilize the ground to ensure a faster,
safer development process.
The fast-foaming WILLICH Silicate-based injection products have high expansion factors that can fill large cavities and voids in a safe way. Stabilization and filling of smaller voids in coal mines using WILLKAT FOAM is excellent, fast, and reliable.
This flame-protected product shows due to its very low reaction temperature an extremely unlikely case of coal-self-ignition.