Cast stone produces a strong and durable product that will weather naturally in an outdoor environment. Simply stated, cast stone is chosen for its beauty and authenticity. Our material is natural, authentic, made in the USA, and 100% recyclable.  GFRC, Glass Fiber Reinforced Concrete, is a cement-based composite material with moisture-resistant glass fibers randomly dispersed throughout the material. The high compressive strength of our GFRC results in a frost proof, thaw proof, rust proof, and fire proof material that meets the standards for commercial use. GFRC planters can withstand UV exposure and extreme temperatures, from high heat to frost, and can tolerate the seasonal thaw cycles when planted as recommended. They won’t corrode due to exposure or direct contact with soil.