The only restriction on the length of Cem Flex that may be fixed is the length of hole that can be drilled. In general terms this is restricted to 1.5m. The insertion hole is varied for 12 to 16mm diameter and is usually formed with a SDS hammer drill.
To ensure good bond strength between the Bond Flex XL cementitious grout and the substrate it is necessary to thoroughly wet the drilled hole before the installation of the tie.
Installation of the tie is performed very simply by the use of a hand-held grout injection gun kit. The Bond Flex XL grout is installed under hand pressure and flows readily under light pressure to fill and voids in the masonry structure. Full installation details are given overleaf.