The master sintering curve method was applied to analyze the and crystallization behavior of 15Na2O.10CaO.75SiO2 (SLS) 17Na2O.33CaO.50SiO2 (NC2S3) glasses, in mol %. densification samples successfully analyzed using (MSC) method; it gives activation energy Q = 310–340 kJ.mol−1, which is good agreement with expected viscous flow. While obtained enables predicting SLS glass, actual results are di...