This unique product from Garreco is specifically designed for basing crown and bridge models. Tecstone FL pours into base formers without vibration and yields a bubble-free base. At 12,500 psi compressive strength, Tecstone FL far exceeds the strength of conventional base stone while offering a dense, smooth result. Accuracy is also addressed by an 0.08% Expansion. 12,500 psi., 87 MPA, 9-11 min Set Time.