Clean the surface thoroughly and remove dust, oil, grease, and loose particles. Ensure the substrate is sound and pre-soak the area with clean water before grouting. Mix Conbextra GP2 powder with the recommended amount of clean water to obtain a free-flowing grout. Stir the mixture continuously until a smooth and lump-free consistency is achieved. Pour the prepared grout into the required area such as anchors or bore holes. Ensure the grout flows properly to fill all gaps and voids. Allow the grout to set and avoid disturbance during the initial curing period. Cure the grouted area properly to achieve the required strength and durability.