Which one is better, silica sol self-tightening anti-crack concrete or gypsum self-leveling?

Gypsum self-leveling. Which self-leveling plaster is better?

1. First of all, self-leveling gypsum can flow automatically, which is convenient for construction and can meet construction standards with a small construction thickness.

2. Secondly, due to its excellent performance, gypsum-based self-leveling mortar will gradually replace cement self-leveling and traditional concrete and cement mortar backfilling and leveling technologies.