Fischer chemical resin. This chemical resin will fit in a standard caulking gun and comes with a pre mixing nozzle.
We recommend this for use with our Heavy Duty Floating Shelf Brackets in circumstances that require a high strength installation. Chemical resin can also be used to give a strong reliable fixing if you have a poor wall surface. If you have crumbling brickwork or voids in the wall then this will be a life saver, simply inject some before inserting the wall plug and you will have a solid hold in any situation.
We also highly recommend this when installing onto dot and dab walls. By injecting resin behind the plasterboard you can create a strong bond point around the fixing area.