HYDRO-STONE Gypsum Cement One of the hardest and strongest HYDROCAL Brand products. HYDRO-STONE is recommended for producing high-quality novelty and statuary castings requiring extremely hard surfaces. Use Consistency 32
WARNING: This product can expose you to chemicals including Silica, crystalline (airborne particles of respirable size), which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.