Using the proper ink, thinner, and hardener on for your print project is extremely important. Many times you can spend great amounts of time and money to test your inks for the best look and performance. Unfortunately, all this can be wasted with out using the proper type of mixing cup.
Many times mixing cups become the cheapest and easiest thing to find. This oversight can cause problems down the road. Many cups have wax liners, or have low solvent resistance. This type of mixing cup can contaminate the ink when the solvents attach the plastic or coating inside the cup. This can easily be resolved by using a polythene or polypropylene cup to mix your inks. It is important to note that the liner of the G-cup can be used as a proper mixing cup and eliminate the need for another material.