This is a Durable plastic that is made for Resin Casting. Pieces pop out easily-May have a few water marks, but a thin coat of resin or resin spray will take care of that. We only recommend using an epoxy CASTING resin used to make jewelry and other castings and do NOT recommend using an epoxy coating resin that is used to make tumblers. This mold is a custom Designed COVID Key Covid Keys open doors without using your hands, use the ATM, Gas Station Buttons without having to touch. Keychain hole may need to be drilled through after casting in order to attach a key ring. Molded from love 2020 This design is copyright protected. Can not be outsourced for mass production. For personal or small business use only. All rights reserved.