| Gypsum-based self-leveling category | Specification | Inspection standards | Appearance | 30min fluidity, mm | 24h flexural strength, MPa | 28d absolute dry flexural strength, MPa | 24h compressive strength, MPa | 28d absolute dry compressive strength, MPa | 28d drying tensile adhesion, MPa | impact resistance |
| Gypsum-based high-strength self-leveling | 25KG/bag | JC/T 1023-2021 Gypsum-based self-leveling mortar | Dry powder, uniform and without lumps | ≥140 | ≥2 | ≥10 | ≥2.5 | ≥35 | ≥10 | No cracking or separation from the base plate |