I use digital scale for mixing purposes when putting together larger batches of this epoxy. For smaller repairs it is more difficult when less than 1/2 a teaspoon is needed. Sometimes a few drops is all that is needed. Does anyone have the information that would make mixing by volume more accurate, i.e. the relative weight of part A to part B? Mixing by wieght is in a ratio of 1:3 by wieght. Thanks