This starch is modified so that it can dissolve in water easily and at high concentration. It is used to make laundry starch and starch based glues such as those used on the back of the stamps. Starch based glues are highly demanded due to their safety when handled by children. They are also washable easily if they spill on the floor or on clothing. For many years starch based glues have been the only or the predominant type of glue used at homes and offices. This trend changed after invention of polymers such as white glue (Polyvinyl acetate).Starch based glues can also be mixed with pigments to make water colors. This starch can dissolve in water to create a high viscosity clear glue after heating and stirring.