RGD RSP 80 — High-Alumina Refractory Castable
High-alumina refractory castable with 80–84 wt% Al₂O₃ content, a maximum service temperature of 1,700°C, and hydraulic bonding. Designed for industrial refractory lining applications, with vibration-based installation. Supplied in 25 kg bags.
- Al₂O₃
- 80–84 wt%
- Max. service temperature
- 1,700 °C
- Packaging
- 25 kg / bag
- Installation
- Vibrating

Industrial refractory castable
GARVA supplies RSP 80 for industrial refractory lining applications. Suitability for furnaces, ladles, kilns, or any specific equipment must be assessed against actual operating conditions and installation procedures.
Full RSP 80 Technical Specifications ↕
Product Information
| Parameter | Specification |
|---|---|
| Characteristics | Dense refractory concrete |
| Raw material basis | Bauxite |
| Bonding system | Hydraulic |
| Condition as delivered | Dry; water to be added |
| Packaging | 25 kg bags |
| Installation method | Vibrating |
| Shelf life | 6 months (dry, cool, frost-free) |
Chemical Analysis
| Component | Value | Unit |
|---|---|---|
| Al₂O₃ | 80–84 | wt% |
| SiO₂ | 10–14 | wt% |
| Fe₂O₃ | < 1.5 | wt% |
Physical Properties
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Maximum service temperature | 1,700 | °C | |
| Material requirement | 2.86 | t/m³ | |
| Maximum grain size | 7.00 | mm | |
| Water addition | 5.0–6.0 | % | 5–6 L / 100 kg dry material |
| Bulk density | 2.72–2.80 | g/cm³ | After firing at 1,000 °C |
| Apparent porosity | < 18 | vol% | After firing at 1,000 °C |
| Thermal expansion | 0.70 | % | At 1,000 °C |
Temperature Performance
| Temperature (°C) | Permanent linear change (%) | Cold crushing strength (N/mm²) | Thermal conductivity (W/m·K) |
|---|---|---|---|
| 110 | 0.00 | > 80 | — |
| 300 | — | — | 2.4 |
| 700 | — | — | 2.2 |
| 1000 | −0.10 | > 100 | 2.0 |
Values are transcribed from the RSP 80 specification sheet supplied for this listing and have not been independently tested by GARVA. Follow the applicable technical documentation for installation, curing, and dry-out procedures.
View Specification Summary Graphic

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