Ardex Ardex SD-M Microcement — Mix Ratio & Calculator
Data sourced from manufacturer SDS & TDS · Last verified September 01, 2026
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Quick Answer
Ardex Ardex SD-M Microcement mix ratio: 3.5:1 by volume, 3.5:0.92 by weight
Max pour depth: 0.1875" · Full cure: 16h · Ideal temp: 65°F · Price: $90–$200/gal
⚠️ Exothermic Risk — The weight ratio (3.5:0.92) is NOT 1:1. Resin and hardener have different densities. Using a 1:1 scale ratio will result in incorrect curing. Always mix by weight using the ratio above.
Self-drying microcement for floors with foot traffic in 3 hours. High abrasion resistance. Suitable over radiant heating.
| Volume Mix Ratio (A:B) | 3.5:1 |
| Weight Mix Ratio (A:B) | 3.5:0.92 — use this for scale mixing |
| Max Pour Depth | 0.1875" / 4.8mm |
| Ideal Temperature | 65°F |
| Full Cure Time | 16 hours |
| Viscosity | N/A cps |
| Coverage | 40 sq ft/gal |
| Average Price | $90–$200/gal (Microcement market avg, 2026) |
Safety Note
The weight ratio (3.5:0.92) is NOT 1:1. Resin and hardener have different densities. Using a 1:1 scale ratio will result in incorrect curing. Always mix by weight using the ratio above.
The weight ratio (3.5:0.92) is NOT 1:1. Resin and hardener have different densities. Using a 1:1 scale ratio will result in incorrect curing. Always mix by weight using the ratio above.