 Why are the two art resin parts not already mixed? So you have two parts with epoxy resin You have the resin part and you have the hardener when you combine them a chemical reaction will happen to form new molecules that are Characteristically hard and solid and once this happens. There's no going back. It's not a liquid anymore. You can't mold it It is really solid. It's not manipulatable in any way, but you can sand it if you choose so choose So keep your questions coming in the comment section below For more FAQ answers how to do videos and other cool stuff you can take a look at these and visit artism.com for more