How do I mix and measure resin?
For that, we'll need to know exactly what type of brand you are using, style and the Brand Name. Most Epoxy Casting resins will give you the mixing directions and ratios on the container themselves, or with the instruction sheet. For example, I have used an epoxy casting Resin from Smooth On in the past on the interior of a Pepakura piece, to almost sort of use the paper model as a disposable mold and Slush Cast it. In that case, the Epoxy casting resin was a 1:1 mix of the two component Parts Part A and Part B. I got three of those Red Solo plastic cups. On the inside of two of the cups I marked a line the same height from the bottom, put Part A in one cup the line and Part B to the other in the other cup. Then I poured both into the third cup, mixed for the appropriate "Pot Time" then poured into the interior of the model.
Now, I only did that because my shop digital balance had died. See, the preferred method for mixing Epoxy Casting resins is to do the three cup method, but to do it by Weight, not volume. You put a cup on the balance, Tare, or "Zero" it out with the cup, add one part, take it off, put the next cup on, add the second part to the same weight, then mix in the third.
For some other Casting resins or polyester resins, Fiberglass Resin, you will have one part and a Hardener. Again, whatever product you buy should list the appropriate ratios of Resin to Hardener and you can use either volume or weight for that as well.
