IMPERFECT 3" Deep Wide Arch Block Mold

IMPERFECT condition! These molds have tiny imperfections that generally don’t have noticeable effects the outcome of the casts. These arch block molds are 3” deep. They come in 3 sizes:  8" tall x 7" wide 10" tall x 9" wide 12" tall x 11" wide   Mold covers are sold separately.  All molds are made with high quality platinum cure silicone that is suitable for casting resin or concrete. Molds with this material are made to last, however, molds will degrade over time/usage. There are many factors that determine how fast a mold degrades. Here are several things to take into consideration: - Heat wears molds out. Using a torch on molds will damage them. Please stay away from using heat on molds! - Slow curing resins place greater stress on molds. - Mold releases extend a mold's life. - Pouring thicker than the resin's recommended depth may damage molds due to heat from the exothermic reaction. - Bubbles formed on the surface of a mold (especially 3D molds) can scrape the molds during the