To solve this problem, the industry developed Magnesium Sulfate (MgSO4) boards, often marketed as “Chloride-Free” or “Sulfate-based” MgO boards.
| Feature | Chloride-based (Standard) | Sulfate-based (Premium) |
| Humidity Resistance | Prone to weeping in humid climates. | Stable; does not weep or sweat. |
| Corrosion Risk | High (corrodes steel/screws). | Very Low (safe for metal contact). |
| Price | Generally cheaper. | More expensive due to raw material costs. |
| Best Use | Dry, interior controlled climates. | Exterior cladding, wet areas, and humid regions. |
3
APR
2026
APR
2026
0