Resins & studs
Resins & studs or resin anchors are commonly used with concrete and masonry, the advantage that resin has is that there is no expansion force, so it can also be used in damaged masonry as the resin bonds to the substrate. Polyester anchors are for fixing studs into brick, and epoxy resin is used for high loads and larger holes. You can also use resin in hollow walls if you use a hollow wall sleeve during application.
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