How to Harden Modeling Clay: What Works and What Does Not
Learn how to harden modeling clay based on the type you are using, including what works for polymer, air-dry, epoxy, and why oil-based plasticine does not truly harden.
Learn how to harden modeling clay based on the type you are using, including what works for polymer, air-dry, epoxy, and why oil-based plasticine does not truly harden.