ZIRCAR Silica Moldable Type RS-SI Moldable is a wet blanket that is a combination of high purity amorphous silica fibers and inorganic silica binder. The fibers are 6-9 um in diameter and are considered non-respirable. Upon drying, Type RS-SI Moldable becomes a rigid structure with useful properties to temperatures of 1100°C (2012°F).
Type RS-SI Moldable exhibits good wet handleability. It is easily cut with scissors or a knife and can be applied directly to equipment with complex contours. It can also be used to fabricate flat sheets or boards. Drying can be accomplished in an oven, with a hot air gun or torch, or by exposure to heat in the application. Drying results in a strong, rigid, low density shape that can be re-wet to restore the original moldability. Baking irreversibly removes the moldability, leaving Refractory Sheet Type RS-SI Moldable unaffected by moisture.
Type RS-SI Moldable exhibits excellent resistance to attack by most chemicals with the exception of caustics. It will tolerate all acids except hydrofluoric acid. It is not wet by molten aluminum . RS-SI Moldable is 100% organic free and contains no refractory ceramic fiber. It is readily machined to precision tolerances with conventional tooling.
|Typical Composition, %|
|Solids Content, as supplied, %||53|
|Density, dried, g/cc(pcf)||0.64(40)|
|Fiber Diameter, microns||3 – 4|
|Maximum Use Temperature* C (F)||1200(2192)|
|Melting Point, C (F)||1698(3000)|
|Linear Shrinkage^, %|
|as supplied to dry at 105°C(222°F)||0 – 1|
|24hrs. at 1010°C (1850°F)||5 – 7|
* Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the material experiences.
‡ Properties expressed perpendicular to thickness.
- Immune to Thermal Shock
- Highly Insulating, Low Mass
- Strong Self Supporting When Dry
- Non RCF
Transport of Molten Non- Ferrous Metals
Trough and Launder Liners.
Furnace Door linings and Seals.
Expansion Joint Seals.
Glass Furnace Crown Insulation.
Insulation Wrap for High Temperature Process Piping.
High Temperature Gasketing.
High Temperature Kiln and Furnace Insulation.
Self Supporting Mold Wrap.
Fabrication into Rigid Silica Fiber Boards and Cylinders.
Useful where Refractory Ceramic Fibers Are Not Desired.
SDS (in PDF format)
Please call, fax or e-mail for pricing and availability.
|HS50||RS-SI, 24″ X 36″ X 1/8″|
|HS51||RS-SI, 24″ X 36″ X 1/4″|
|HS52||RS-SI, 24″ X 36″ X 1/2″|
|HS53||RS-SI, 24″ X 36″ X 3/4″|
|HS54||RS-SI, 24″ X 36″ X 1″|
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