General Info
ZIRCAR Refractory Composites, Inc. offers a wide range of insulating refractory felts, papers and blankets. These non-woven, asbestos free, fiber-based products are engineered as thermal barrier materials.
Commonly used in the molten metal casting and heat treating industries, ZRCI’s felts and papers are also used as specialty gaskets in the fuel cell, nuclear, glass and electronic industries, as well as many other applications which require high temperature stability and low thermal conductivity. They also offer excellent corrosion resistance and unique handling strength for easy die-cutting, wrapping and forming.
ZRCI Alumina Felt Type RS-3000 is 97% high purity alumina fiber, ceramic felt with less than 1% shot. Type RS-3000 is a strong, flexible material with fibers held together with an organic binder. It is available in roll, sheet or custom die-cut parts. Type RS-3000 is ideal for application temperatures as high as 1650°C (3002°F).
Type RS-3000 high alumina content is ideal for high vacuum, reducing atmospheres and other applications where silica cannot be tolerated, such as setters for P/M ,MIM and high temperature fuel cell applications.
Properties
A small amount of organic combustible binder will burn out at approximately 300°F. Caution should be exercised during the initial heating. Adequate ventilation should be provided to avoid potential flash ignition of the binder out-gassing or avoid air entry while at elevated temperature.
| Typical Composition, % | ||
| Al2O3 | 97 | |
| SiO2 | 3 | |
| Trace Elements | <0.5 | |
| LOI, % | 5 | |
| Density, g/cc(pcf) | 0.14(9) | |
| Color, | White | |
| Type of Binder, | Organic | |
| Fiber Index, % | 99 | |
| Maximum Use Temp.*,C(F) | 1650(3002) | |
| Melting Temp, C(F) | >2000(3632) | |
| Mullen Burst, kPa(psi) | 186(27) | |
| Tensile Strength‡, Mpa(PSI) | ||
| As Received | 0.27(40) | |
| Fired | 0.03(5) | |
| Thermal Conductivity**, | ||
| W/m K(BTU/hr. ft °F/in) | ||
| 500°C(932°F) | 0.08(0.53) | |
| 800°C(1472°F) | 0.11(0.80) | |
| 1100°C(2012°F) | 0.17(1.20) | |
| 1400°C(2552°F) | 0.26(1.78) | |
| 1600°C(2912°F) | 0.32(2.22) | |
* 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.
Composition
ADVANTAGES
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High alumina content, fiber index and purity
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Outstanding high temperature stability
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Thin, flexible, high temperature insulation
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Easily die-cut to for high temperature gaskets
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Conforms easily to complex shapes
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Excellent high temperature parting agent
Instructions
Alumina Felt Type RS-3000 is 97% high purity alumina fiber, ceramic felt with less than 1% shot. Type RS-3000 is a strong, flexible material with fibers held together with an organic binder. It is available in roll, sheet or custom die-cut parts. Type RS-3000 is ideal for application temperatures as high as 1650°C (3002°F).
USES INCLUDE:
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Annealing Cover Seals
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Flexible High Temperature Pipe Insulation
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Furnace, Kiln, Reformer and Boiler Linings
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Furnace Door Linings and Seals
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Investment Casting Mold Wrap
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Expansion Joint Seals
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High Temperature Filtration
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Glass Furnace Crown Insulation
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Thermal Reactor Insulation
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Soaking Pit Seals
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Insulation for Primary Reformer Header
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High Temperature Gaskets
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High Temperature Kiln and Furnace Insulation
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Refractory Back-up Insulation
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Appliance Insulation
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Separating Media for Heat Treating Metals
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Glassware Separating Media
- Parting Agent for Brazing Operations
Download the RS-3000 Felt PDF File
SDS (in PDF format)
Other Information
AVAILABILITY
Please call, fax or e-mail for pricing and availability.
| Item # | Description |
| PX56 | RS-3000, 24″ X 24″ X 1/32″ |
| PX57 | RS-3000, 24″ X 24″ X 1/16″ |
| PX58 | RS-3000, 24″ X 24″ X 1/8″ |
| PX59 | RS-3000, 24″ X 24″ X 1/4″ |
| PX60 | RS-3000, 24″ X 50′ X 1/32″ |
| PX63 | RS-3000, 24″ X 50′ X 1/16″ |
| PX66 | RS-3000, 24″ X 50′ X 1/8″ |
| PX69 | RS-3000, 24″ X 50′ X 1/4″ |
PRICES ARE SUBJECT TO CHANGE WITHOUT NOTIFICATION AND ARE SUBJECT TO ZIRCAR REFRACTORY COMPOSITES, INC. TERMS AND CONDITIONS. ALL PRICES ARE F.O.B. FLORIDA, NY AND ARE IN U.S. DOLLARS
Note: These products can be further processed to provide finished sizes. Processes such as slitting, cutting, die punching and CNC machining are available upon request.