Mixing ratio in epoxy systems is calculated by two different measurement methods as weight and volume. Since epoxy resins and epoxy hardeners have different specific weights, the calculation made by weight and the calculation made by volume will not give the same result. For example, it is not correct to mix 2 cups (A) and 1 cup (B) at a mixing ratio specified as (A) Resin: (B) Hardener = 2:1 by weight. Therefore, the most accurate measurement method is the method using digital precision scales based on the weight calculation.
The point to be considered in the use of precision balances is the measurement accuracy of the balance and the correct weighing of the balance. First of all, to make sure that the balance is weighing correctly, weigh a sample scale on your balance that you are sure of the weight and observe the correct value on the screen. If the sensitivity of your balance is low, you will have a high probability of error in weighing very small quantities. Therefore, you should mix as many products as possible together in order to avoid sensitivity errors. For example, 1 g. If you are measuring on a precision scale, 150 gr. Try not to mix less than