Bevedan & Bevedol

Bevedol™ / Bevedan™ is Minova’s two‑component, foaming polyurethane (PU) injection resin engineered for rock consolidation, stabilisation and water control in soft and hard rock mining. The resin (Bevedol) and catalyst (Bevedan) are mixed at 1:1 volumetric ratio. After mixing both components in the injection gun a rapid curing reaction is initialized. Low viscosity of mixture enables excelent penetration into fine fissures of rock, delivering strong adhesive bonds and high mechanical resistance once cured. Typical unfoamed strengths reach values over 3 MPa (adhesive), up to 80 MPa (compressive) and up to 90 MPa (flexural), the combination of which Bevedol™ / Bevedan™ achieves a long-lasting and excellent ground supporting effect. Bevedol™ / Bevedan™ contains a foam inhibitor that minimizes the reduction in strength due to foaming on contact with water. The foamed structure yields to ground pressure, accommodating movement and helping reduce material migration during injection. The slightly foamed structure of the Bevedol™ / Bevedan™ behaves semi-plastically under rock stress without brittle failure and can absorb rock displacements.