Epoxy resins have relatively high tensile and compressive strengths in relation to concrete, they are generally regarded as ‘rigid’ materials and widely used for structural repairs by injections of cracks and voids in load bearing reinforced concrete structures or elements. Their low viscosity allows excellent penetration into cracks in the structure, and this also helps to ensure permanent and durable load transfer based on their excellent adhesion to the concrete. Epoxy resin-based materials are suitable for many different structural injection requirements and applications in dry and slightly damp.