Fillers in adhesives

are solid, non-self-adhesive, non-volatile materials non-soluble in adhesive that reduce the consumption of basic adhesive materials and prevent the excessive adhesive force of the adhesive. They are selected according to the intended use (e.g. to prevent adhesive bleeding, to fill gaps) and they use shrink contraction to remove any resulting stresses. The following are used as neutral fillers: Wood flour, rock flour, shell flour, gypsum (calcium sulphate); e.g. magnesium carbonate