Our injection chemical range includes polyurethane (PUR), silicate and phenolic based systems. These systems are routinely used to stabilise longwall faces in underground coal mines and prevent falls of ground during production. Polyurethane products can be injected under high pressures and have a long history in preventing water ingress of varying magnitudes into the mine.
All our strata injection and cavity filling chemicals used in coal mines hold the German Authority permit (LOBA compliant), an internationally accepted standard for the safe and correct manufacture and application of these systems.
Bevedol® / Bevedan® is a two component, foaming polyurethane (PUR) injection system used to consolidate highly convergent strata. The system consists of a resin (Bevedol®) and a catalyst (Bevedan®) which is delivered into the strata via a pump unit and injection gun. The two components mix in the gun, which initiates the reaction of the product. The low viscosity mixture penetrates the smallest fissures, hardens and ensures the consolidation and sealing of the area submitted to treatment.
Carbofill® is a two component phenolic foam resin used for filling cavities. Component A is an aqueous phenolic resins containing a suspension of solid carbonates as a blowing agent and Component B is a blend of various acids which affect the foaming process and the curing reaction.
The final product is a lightweight material with a yellow to pink colour. Ideal for filling of cavities in underground roadways and longwalls and the stabilisation and prevention of gas accumulation, stabilisation of debris and forming temporary plug seals.
Geoflex® is a non-expanding, elasticised, two component injection resin system. Geoflex® Part A is a specialised sodium silicate with additives. Geoflex® Part B is a modified polyisocyanate.
The final product is a tough, flexible material with extremely high bond strength that is resistant against acids, alkalis, brines and many solvents. Ideal for grouting/injection coal and adjacent strata, sealing of injection anchors and stabilisation of debris.