General Info
ZRCI Alumina-Silica Blanket Types RSBL-2300 and RSBL-2600 are mechanically-needled ceramic-fiber blankets that provide effective solutions to a variety of thermal management problems. RSBL-2300 and RSBL-2600 blankets exhibits good strength and handleability. They are low density with good chemical stability. RSBL-2300 and RSBL-2600 provide low thermal conductivity in numerous high-temperature laboratory and aggressive industrial environments. They have low shot content and are easily cut with scissors or knife. They are available in a wide range of density and thickness combinations.
They are available in two temperature ratings:
RSBL-2300 is made from spun Al2O3 -SiO2 refractory ceramic fibers (RCF) and is capable of long service life in applications with temperatures to 1260⁰C (2300⁰F).
RSBL-2600 is made from spun Al2O3 -SiO2 -ZrO2 refractory ceramic fibers (RCF) and exhibits extended service life in applications with temperatures to 1427⁰C (2600⁰F).
Types RSBL-2300 & RSBL-2600 Alumina Silica Blankets are ideal for use as furnace insulation in sintering, heat treating and chemical thermal process systems.
Properties
SUGGESTED APPLICATIONS
- High temperature furnace and kiln linings.
- Boiler insulations.
- High temperature gaskets and seals.
- Pipe and duct insulation.
- Backup thermal insulation in furnaces, solid oxide fuel cells and thermal process systems operating to high temperatures.
- General high-temperature furnace repair.
- Investment casting mold wrappings.
- Soaking pit seals.
- Glass furnace crown insulation.
Composition
| TYPE | RSBL-2300 | RSBL-2600 |
| Nominal Composition, wt% | ||
| Al2O3 | 45 | 30 |
| SiO2 | 55 | 54 |
| ZrO₂ | 0 | 16 |
| Other Oxides | <0.5 | <0.1 |
| Density, gm/cc(pcf) | 96.11 (6) | 128.5(8) |
| Max. Use Temp.*, °C(°F) | 1260(2300) | 1427(2600) |
| Fiber Diameter, microns | 2.5-3.5 | 3.5 |
| Thermal Conductivity, W/m°K(BTU/hr. ft² °F/in) | ||
| 260°C(500°F) | 0.06(0.45) | 0.05(0.39) |
| 538°C(1000°F) | 0.13(0.94) | 0.11(0.78) |
| 816°C(1500°F) | 0.24(1.70) | 0.18(1.13) |
| 1093°C(2000°F) | 0.40(2.80) | 0.29(2.02) |
| Linear Shrinkage‡, % | ||
| 1260°C(2300°F) | 3.3 | 2.1 |
| 1426°C(2600°F) | – | 5.1 |
| Fiber Specific Gravity, g/cc (pcf) | 2.73(170.4) | 2.73(170.4) |
| Specific Heat, J/kg ⁰K (BTU/lb ⁰F)
1093⁰C (2000⁰F) |
1130(0.27) | 1130 (0.27) |
* Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the material experiences.
** Properties expressed parallel to thickness.
^ Properties expressed perpendicular to thickness.
Instructions
Download the RSBL Alumina Silica Blanket PDF File
SDS (in PDF format)
Other Information
| NS70 | RSBL-2300-6, 24″ x 25′ x 1/2″T |
| NS71 | RSBL-2300-6, 48″ x 25′ x 1/2″T |
| NS72 | RSBL-2300-6, 24″ x 25′ x 1″T |
| NS73 | RSBL-2300-6, 48″ x 25′ x 1″T |
| NS74 | RSBL-2300-6, 24″ x 12.5′ x 1.5″T |
| NS75 | RSBL-2300-6, 48″ x 25′ x 1.5″T |
| NS76 | RSBL-2300-6, 24″ x 12.5′ x 2″T |
| NS77 | RSBL-2300-6, 48″ x 12.5′ x 2″T |
| NS80 | RSBL-2300-8, 24″ x 25′ x 1/2″T |
| NS81 | RSBL-2300-8, 48″ x 25′ x 1/2″T |
| NS82 | RSBL-2300-8, 24″ x 25′ x 1″T |
| NS83 | RSBL-2300-8, 48″ x 25′ x 1″T |
| NS84 | RSBL-2300-8, 24″ x 12.5′ x 1.5″T |
| NS85 | RSBL-2300-8, 48″ x 12.5′ x 1.5″T |
| NS86 | RSBL-2300-8, 24″ x 12.5′ x 2″T |
| NS87 | RSBL-2300-8, 48″ x 12.5′ x 2″T |
| NS90 | RSBL-2600-8, 24″ x 25′ x 1/2″T |
| NS91 | RSBL-2600-8, 24″ x 25′ x 1″T |
| NS92 | RSBL-2600-8, 24″ x 12.5′ x 1.5″T |
| NS93 | RSBL-2600-8, 24″ x 12.5′ x 2″T |