We made a mold of a brick wall section using Latex and medical gauze. The process took about a week, and then the mold sat in my layout room for 6 months. This week, we poured some hydrocal molds and learned some lessons along the way - such as using a surfactant to mist the surface before pouring, and how to mix hydrocal properly for casting. In the end, we made 5 castings, three of which we will use for a large warehouse structure, and the other two for experiments with paint.