85% Alumina, Phosphate-Bonded Patching Plaster
Specifications
| Approximate Chemical Analysis (Calcined Basis) | Alkalies (Na2O+K2O) - 0.4% Alumina (Al2O3) - 83.7% Iron Oxide (Fe2O3) - 1.0% Phosphorus Pentoxide (P2O5) - 2.8% Silica (SiO2) - 10.2% Titania (TiO2) - 1.9% |
|---|---|
| Material Required ( g/cm³ ) | 2.80 |
| Material Required ( lb/ft³ ) | 175 |
| Bulk Density After 450ºF (230ºC) ( g/cm³ ) | 2.68 |
| Bulk Density After 450ºF (230ºC) ( lb/ft³ ) | 167 |
| Bulk Density After 2500ºF (1370ºC) ( g/cm³ ) | 2.60 |
| Bulk Density After 2500ºF (1370ºC) ( lb/ft³ ) | 161 |
| Bulk Density After 3000ºF (1650ºC) ( g/cm³ ) | 2.72 |
| Bulk Density After 3000ºF (1650ºC) ( lb/ft³ ) | 170 |
| Modulus of Rupture After 450ºF (230ºC) ( MPa ) | 11.0 |
| Modulus of Rupture After 450ºF (230ºC) ( lb/in² ) | 1600 |
| Modulus of Rupture After 2500ºF (1370ºC) ( MPa ) | 12.4 |
| Modulus of Rupture After 2500ºF (1370ºC) ( lb/in² ) | 1800 |
| Modulus of Rupture After 3000ºF (1650ºC) ( MPa ) | 6.9 |
| Modulus of Rupture After 3000ºF (1650ºC) ( lb/in² ) | 1000 |
| Hot Modulus of Rupture at 2700ºF (1480ºC) ( MPa ) | 3.1 |
| Hot Modulus of Rupture at 2700ºF (1480ºC) ( lb/in² ) | 445 |
| Cold Crushing Strength After 450ºF (230ºC) ( MPa ) | 24.8 |
| Cold Crushing Strength After 450ºF (230ºC) ( lb/in² ) | 3600 |
| Cold Crushing Strength After 2500ºF (1370ºC) ( MPa ) | 103.4 |
| Cold Crushing Strength After 2500ºF (1370ºC) ( lb/in² ) | 15000 |
| Cold Crushing Strength After 3000ºF (1650ºC) ( MPa ) | 55.8 |
| Cold Crushing Strength After 3000ºF (1650ºC) ( lb/in² ) | 8100 |
| Permanent Linear Change After 450ºF (230ºC) ( % ) | -0.5 |
| Permanent Linear Change After 2500ºF (1370ºC) ( % ) | +1.1 |
| Permanent Linear Change After 3000ºF (1650ºC) ( % ) | +0.2 |
| Pyrometric Cone Equivalent | 38 |
| Adhesion Test | 1/8-inch Thick, After 2900ºF (1595ºC) :- Will not peel |
Note
The test data shown are based on average results on production samples and are subject to normal variation on individual tests. The test data cannot be taken as minimum or maximum values for specification purposes. ASTM test procedures used when applicable.
Features
- Formulated for application by trowel or by hand.
- Will not shrink or crack on heatup.
- Resists metal and slag erosion.
- Can be used on hot surfaces.
Uses
- Metal and non-metal contact areas which have spalled or eroded.