> "...though weighing things out that precisely is quite challenging, especially if they are viscous liquids." The "error tolerance" in mixing epoxy is probabl

> "...though weighing things out that precisely is quite challenging, especially if they are viscous liquids." The "error tolerance" in mixing epoxy is probably at least 1% so inexpensive scales are quite adequate. The "secret" to mixing epoxy is measuring the resin and hardener in separate containers, then combining by pouring the hardener into the resin. I also put some of the mixture back into the container used to measure the hardener, mix thoroughly and add it to the main portion of mixed epoxy. This procedure assures all of the hardener is mixed with all of the resin. BTW I use my kitchen scale every day. As you say, measuring powders, like flour, by volume isn't reliable. Then again, liquids, even water, are easier to weigh out. Besides, measuring cups aren't very accurate. Then again being only as precise as necessary for the job is what efficiency is about.