Monolithic RefractoriesCastables
Acid-Resistant Castable
Castable resistant to all inorganic and organic acids except hydrofluoric and hot phosphoric acid, with high strength at room temperature and simple production and installation. Grades NS1 to NS3.
- Grades / types
- NS1, NS2, NS3
Product overview
Acid-resistant castable has good corrosion resistance to all inorganic and organic acids except hydrofluoric acid and hot phosphoric acid. It has high strength at room temperature, the production process and installation are simple, and material utilisation is high.
It can also be made into precast shapes and installed on site, for example for chimney linings.
Key characteristics
- Resistant to inorganic and organic acids (except hydrofluoric and hot phosphoric acid)
- High strength at room temperature
- Simple production and installation
- High material utilisation
- Suitable for precast shapes
Technical data
| Property | Unit | NS1 | NS2 | NS3 |
|---|---|---|---|---|
| Bulk Density | g/cm³ | ≤1.4 | 1.4~1.9 | >1.9 |
| Thermal Conductivity (70℃) | W/(m·K) | ≤0.55 | ≤0.90 | ≤1.5 |
| Heat Resistance (250℃×4h, Exterior) | No change, no cracks, no expansion. | No change, no cracks, no expansion. | No change, no cracks, no expansion. | |
| Heat Resistance (250℃×4h, Residual Strength) | ≥90 | ≥90 | ≥90 | |
| Acid Resistance (40% H₂SO₄ 7d, Exterior) | No change, no corrosion, no cracks, no expansion | No change, no corrosion, no cracks, no expansion | No change, no corrosion, no cracks, no expansion | |
| Acid Resistance (40% H₂SO₄ 7d, Residual Strength) | ≥90 | ≥90 | ≥90 | |
| Water Resistance (Water 15d, Exterior) | No corrosion, no cracks, no expansion | No corrosion, no cracks, no expansion | No corrosion, no cracks, no expansion | |
| Water Resistance (Water 15d, Residual Strength) | ≥80 | ≥80 | ≥80 | |
| Natural Drying Shrinkage | % | ≤2.0 | ≤2.0 | ≤2.0 |
Applications
- Chimney linings, cast in place or as precast shapes
Available grades, shapes and sizes
Available grades
- NS1
- NS2
- NS3
Related solutions
Services that work with this family of materials.
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Technical Consultation
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