Chemical anchor

A chemical anchor is a fixing in which a resin, injected into the drilled hole, hardens around a threaded rod or a bolt and bonds it to the wall.

Unlike an expansion anchor, it does not push against the sides of the hole to hold. It bonds to the material, which is why it works well in walls that cannot take that pressure, such as hollow brick or block, using a mesh sleeve that keeps the resin inside the cavity. It is also useful near edges and corners, where an expansion anchor could break the wall.

On grilles for bungalows and homes on the coast, where many façades are built of block, it is usually the way to make sure the grille cannot be ripped out with a crowbar.

For it to grip, the hole must be cleaned of dust and the curing time given by the manufacturer must be respected before the fixing takes any load. More on our security grilles page.