RS-C Moldable

  Brooke Hamling   Sep 07, 2018     Comments Off on RS-C Moldable

General Info

ZIRCAR Alumina-Silica Insulating Blanket Type RS-C Moldable is composed of long, high strength ceramic fibers, with an inorganic alumina binder/rigidizing agent. It is a wet blanket that is shipped rolled up and sealed in a plastic bag to preserve its moldability.

Type RS-C Moldable forms a strong, rigid, low density insulation for applications to 1260°C (2300°F). It is 100% inorganic, non-combustible and contains no toxic or hazardous materials. Type RS-C Moldable is ideal for insulation of complex shapes and exhibits excellent erosion resistance under conditions of high, hot gas velocity. It can be cut to any size with a knife, scissors, or steel rule die. It can be formed to virtually any shape desired. Type RS-C Moldable possesses excellent strength for ease of installation. An unique process of locking in the binder ensures that it will not migrate. The result is a uniform homogeneous structure throughout the entire material.

Type RS-C Moldable does not adhere to itself, yet it can be cemented using air-set mortar. Type RS-C Moldable will normally air dry in 24 to 48 hours, with all the properties of a pre-fired insulation. Curing can be accomplished with a hot air gun or torch, or by immediate temperature exposure in the application.

Type RS-C Moldable can be put directly into high temperature ovens or furnaces.

Type RS-CH Moldable has all of the same properties as RS-C but is rated for 1450°C (2642°F)


Typical Composition, %  




        Other Metal Oxides


Density, gm/cm3 (lb/ft3)

.46 (29)

Maximum Use Temp.*, C (F)

1260 (2300)



Tensile Strength^, MPa (psi)

.48 (70)

Compressive Strength**, MPa (psi)  
   @10% Compression

0.2 (30)

Shrinkage^, %  
   Drying 75°C (167°F)


   Isothermal Soak, 24 hrs.@ 800°C (1472°F)


Thermal Conductivity**,W/m K (BTU/ft2 °F /in)  
   ASTM C177  
        200°C (392°F)

0.06 (0.48)

        500°C (932°F)

0.13 (0.91)

        800°C (1472°F)

0.20 (1.42)


Silica Moldable Type RS-SI Moldable is a wet blanket that is a combination of high purity amorphous silica fibers and inorganic silica binder. Upon drying Type RS-SI Moldable becomes a rigid structure with useful properties to temperatures of 1200°C(2192°F). It dries to a low mass light weight insulation with low thermal conductivity and high structural strength.

Alumina-Silica Moldable Blankets comprise long, high strength ceramic fibers in an inorganic Alumina binder/rigidizer. They are 100% inorganic and noncombustible. Alumina-Silica Blanket Type B is for applications to 900°C (1600°F) and Type C is for applications to 1260°C (2300°F). These materials harden to be a self supporting, extremely insulating ceramic fiber body.

  • Immune to Thermal Shock
  • Highly Insulating, Low Mass
  • Strong Self Supporting When Dry
  • Non RCF



  • Type RS- C Moldable is used as hot gas duct, stack and flue liners.
  • Type RS- C Moldable is used as custom molded valve enclosures.
  • Type RS- C Moldable is used as small appliance insulation.
  • Type RS- C Moldable is used as hot-face insulation where gas velocity is of concern.
  • Type RS- C Moldable is used for combustion chamber liners.
  • Type RS- C Moldable is used as back-up insulation for molten metal transport troughs.
  • Type RS- C Moldable is used for custom fabricated insulation parts.
  • Type RS- C Moldable is used as exhaust manifold insulation.
  • Type RS- C Moldable is used as back-up insulation.
  • Type RS- C Moldable is used as high temperature pipe insulation (internal and external).
  • Type RS- C Moldable is used as asbestos lagging replacement.



Download the RS-C Moldable PDF File

SDS (in PDF format)

Download 1st PDF File

Other Information


These products are available in custom sizes only.  Please contact us for more information regarding available dimensions.

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. Larger sizes are available.

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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.

This information, which is subject to change, is offered solely for your consideration and should not be taken as a warranty or representation for which we assume legal responsibility. It is not to be understood as permission or recommendation to practice a patented invention without a license and the user should determine whether relevant patents exist.

  • ZIRCAR Refractory Composites, Inc.
    P.O. Box 489
    Florida, NY, 10921 USA
    Phone: (845) 651-2200
    Fax: (845) 651-1515