Review on 🔶 Clear Plastic 10-Ounce Disposable Epoxy Resin Mixing Cups 50-Pack - Graduated Measurements in ML and OZ for Paint, Epoxy Resin Art Supplies - Ideal for Cooking, Baking, and Multipurpose Mixing by Lauren Lewis

I bought these to mix with epoxy. 1:1 ratio. So I should be able to fill part A up to the 30ml line and then add part B up to the 60ml line, but I ALWAYS test with water to make sure the measurements are the same. YOU ARE NOT! If I put 30ml in two cups and pour them together, it's 65ml. I did this test 6 times with 30ml and 3 times with 50ml. Doubling 30ml always gives 65, but 50 always gives 100. So the measurements below are NOT accurate. This is very disappointing as I use 30ml most of the time. So be careful with them before you buy them!