#moldymonday No 53 part 2: new mold prep with the H&G #292

This is part 2 of @moldymonday No 53, a revival of last year's series. These first 4 parts are about taking a brand new mold from box to blasting. In this case I am presenting a NOS Hensley & Gibbs 2-cavity mold that had never been cast, and demonstrating how I prep such a mold for casting.