Quick Reference Values
Minimum Compressive Strength15 N/mm²
Minimum Flexural Strength3 N/mm²
Minimum Bond Strength0.5 N/mm²
Maximum Water Absorption15%
Minimum Working Time at 27°C15 minutes
Practical Notes
Silicate mortars are excellent for highly acidic environments but must never be used in alkaline conditions (pH > 7) as they will deteriorate.
Do not use silicate mortars in areas exposed to hydrofluoric acid (HF) or acid fluorides, as these chemicals attack the silica binder and fillers.
Potassium silicate mortars generally offer better high-temperature resistance and lower efflorescence compared to sodium silicate mortars.
Strictly follow the manufacturer's powder-to-liquid binder ratio; adding water to adjust workability will ruin the chemical resistance and strength.