The ratio between the glitter and the acrylic powder is 1: 20 and it is suggested by the researcher who has experienced this. The acrylic would not be cured if you add the glitter in the amount more than required as it will weaken the acrylic layer. Although, it can be cured in some cases but will affect the consistency of the acrylic powder. It is advised to prepare a premix of the acrylic powder and the glitter beforehand so that the next time you are using it, you will save your time and effort both.