Refractory Sheet Products
Rigid Boards, and Cylinders
Refractory Sheet Boards, Cylinders and Custom Shapes are engineered ceramic fiber reinforced structural composite with useful properties in thermal, structural and electrical insulating applications as well as contact and transport of molten nonferrous metals for temperatures up to 1650°C (3002°F).
Refractory Sheet Type RSLE-57 is a low expansion high strength reinforced silica matrix composite product. RSLE-57’s exhibits a very low coefficient of expansion 0.3 x 10-6 °C which provides remarkable resistance to the thermal shock up to 1200°C (2192°F) in an oxidizing atmosphere and permits its use with rapid variation in temperature in that zone. Beyond 1200°C (2192°F) it transforms into a crystalline structure, while maintaining its properties up to 1650°C(3002°F) providing that there is no significant fall in temperature. At These elevated temperatures this the material will exhibit surface glazing while retaining its strength. RSLE-57 is non wetting with most non-ferrous metals.
Refractory Sheet Type RSLE-501 is a low expansion, high strength reinforced silica matrix composites in a cylindrical form. This remarkable material was designed for use as a high strength, durable insulator in induction heat treating applications. RSLE-501’s very low thermal expansion coefficient, 0.3 x 10-6 °C, and high hot strength combine to give it thermal shock resistance not found in other structural ceramic materials. It provides remarkable resistance to the thermal shock up to 1200°C (2192°F) and beyond. RSLE-501 is non wetting with most non-ferrous metals.
Refractory Sheet Type RS-100 Boards are ceramic fiber reinforced structural alumina composite material with useful properties to 1260°C (2300°F). They have flexural and compressive strength in the range of high temperature plastic but retain strength and utility to levels far exceeding maximum use temperatures of plastics. Mechanical properties of Type RS-100 sheets exceed those of asbestos cement materials over all temperature ranges. Their high Alumina content make them resistant to many environments including molten aluminum. They are not brittle and have high impact resistance. Type RS-100 is useful both as a full size panel and as a source for precision cut fabricated components. Type RS-200 Boards have all the properties of Type RS-100 with higher strength due to a finer reinforcement structure. This property makes Type RS-200 ideal for applications where intricate machining detail is needed. Types RS-101 and RS-201 & RS-202 Cylinders are fiber reinforced ceramic laminates in a cylindrical form. They exhibit the same properties as Type RS-100 and RS-200 respectively
Refractory Sheet Type RS-1200 is a high strength Alumina composite designed for use as thermo-mechanical and electrical insulation in applications with temperatures as high as 1300°C(2372°F). Type RS-1200 exhibit lower Compressive and flexural strength than RS-100.
Refractory Sheet Type RS-99M and RS-99R are high density fiber based ceramic with greater than 99% alumina purity. They are reinforced with a high purity alumina paper and are ideal to temperatures up to 1650°C (3002°F). Type RS-99M boards can be moistened with water and molded into any desired shape. Type RS-99W boards are unaffected by moisture after a low temperature bake out of 300°C (570°F). Type RS-99R boards are prefired and unaffected by moisture and remain rigid even if saturated with water.
ZRCI Refractory Sheet Type RS-99-60 and RS-99-45 are comprised of 99% alumina. These “All-Alumina” materials are strong, uniform, rigid, refractory structure composed of alpha alumina fibers and high purity inorganic binders. Type RS-99-60 and RS-99-45 have a high purity alumina bond making them well suited for use in high vacuum and reducing environments where silica cannot be tolerated, such as power metal and MIM furnaces with H2 atmospheres. They also have high electrical resistivity at elevated temperatures allowing them to be used in direct contact with resistance heating elements. They exhibite superior hot strength and dimensional stability to 1650°C (3000°F).
Refractory Sheet Type RS-A is a tough ceramic fiber reinforced composite material available in standard boards and custom shapes made to customer specifications. It is ideal for applications up to 1450°C (2642°F). Type RS-A products are available in 3 varieties: Type RS-A1 is dried to constant weight at 100°C(212°F). These products can be remoistened to impart moldablity. Type RS-A2 is fired for 3 hour at 600°C(1112°F) and fully cured. Type RS-A3 is fired, hardened with ZIRCAR AL-Hard at 5% pickup, and re fired. They are substantially higher in density than other ceramic fiber based moldable derived products.
Refractory Sheet Type RS-DD and RS-DR are structural high purity alumina forms reinforced with high alumina fibers. Type RS-DD is a rigid sheet that can be moistened with water to impart moldability. Type RS-DR is a rigid prefired sheet which has been heat treated to remove all organic binder and is stable to moisture attack. Type RS-DR is ideal for use as a setter or barrier in the sintering of powder metal parts. Type RS-DD is widely used by Hot Glass Artist as slumping and fusing molds due to its non sticking nature.
Zircal-95 Refractory Board is a high strength, high density, rigid refractory product fabricated from calcium silicate. Zircal-95 has a uniform density of 1.5 gm/cm3 (95 pcf) which gives it exceptional dimensional stability, and high strength at elevated temperatures. Zircal-95 will withstand thermal cycling without cracking or breaking to temperatures up to 1100°C (2012°F).
Zircal-45 Refractory Board is a self supporting, high strength, rigid refractory product fabricated from calcium silicate, inert fillers and reinforcing agents. It’s high structural strength combined with high thermal insulating value make it ideal for many fireproofing and heat processing equipment applications. Zircal-45 is highly damage resistant, non-corroding, and extremely water-resistant.
ZIRCAL-18 Refractory Board is a high temperature calcium silicate block insulation with excellent mechanical properties and stability up to 1100°C(2000°F). Its high thermal insulating value makes it ideal for many fireproofing and heat processing equipment applications. ZIRCAL-18 is designed to serve as a backup insulation for any refractory construction, such as insulating fire brick, dense refractory brick, castable, gunning mix, plastic refractory or ceramic fiber. It is also ideal as a source for machined thermally insulating parts.
Refractory Sheet Type RSLE-56 Moldable is a high silica fiber reinforced ceramic composite material that is easily cut and formed into flat sheets in addition to a wide variety of simple and complex shapes. When dried RSLE-56 Moldable becomes a hard rigid structure. Further heat treatment or exposure to process temperatures significantly increases the physical strength of this material. RSLE-56’s very low thermal expansion coefficient, 0.3 x 10-6 °C, and high hot strength combine to give it thermal shock resistance not found in other structural ceramic materials. It provides remarkable resistance to the thermal shock up to 1200°C (2192°F) and beyond. RSLE-56 is non wetting with most non-ferrous metals.
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 RS-B is for applications to 900°C (1600°F) and Type RS-C is for applications to 1260°C (2300°F). These materials harden to be a self supporting, extremely insulating ceramic fiber body.
Refractory Sheet Type RS-99M is a high density fiber based ceramic with greater than 99% alumina purity in a moldable state. It is reinforced with a high purity alumina paper. Type RS-99M is ideal as high temperature gasketing, molten metal pouring troughs and high and low temperature electrical insulation and can be used to temperatures up to 1650C (3002F).
Refractory Sheet Type RS-DA and RS-DM are structural high purity alumina forms reinforced with high alumina fibers. Type RS-DA is a plastic highly moldable sheet ideally suited for forming custom geometries. Type RS-DM is highly moldable with a higher density than Type RS-DA and is ideally suited for fabricating complex shapes from a flat sheet, for use in metal clad electric band heaters and strip heaters.
Refractory Sheet Type RS-A Moldable is a tough ceramic fiber insulation reinforced with a needled blanket. It can be molded into an unlimited variety of simple and complex shapes for temperatures up to 1450°C (2642°F). Type RS-A Moldable was developed as a hazardous material replacement for induction coil liners and molten metal transport and is ideally suited for any high temperature, high thermal shock applications.
Refractory Sheet TYPE RS-MS Moldable Sleeving is a moist woven alumina composite sleeving. It is supplied wet and ready for the fabrication of custom shapes.
Mold Mix 6 is a refractory-molding compound designed to allow replication of three-dimensional objects in glass and non ferrous metals. It comes as a paste, which is applied to a suitably prepared pattern and hardens on drying. Properly prepared molds of Mold Mix 6 will resolve the finest details and possess good strength.
Papers, Blankets And Textiles
Alumina-Silica Paper Type ASPA-1 & ASPA-2 are lightweight refractory materials formed into a highly flexible sheet. These papers offer very low thermal conductivity and are designed for applications where purity, crack resistance, high strength and resistance to heat flow are of importance. Type ASPA-1 & ASPA-2 are ideal for high temperature gasketing up to 1260°C (2300°F). Type ASPA-1 contains an organic binder for superior strength and Type ASPA-2 is treated to remove all organics.
Alumina-Silica Fiber Paper Type ASPA-880 is a high temperature, lightweight refractory material made from alumina-silica fibers formed into highly flexible sheets. It is made from shorter and smaller diameter fibers with a higher alumina content and are laid up at significantly higher density. These factors lead to high temperature, slow shrinkage, higher strength, and better chemical resistivity. This alumina-silica fiber paper exhibit very low thermal conductivity and is designed for use in applications where flexibility, high strength and resistance to heat are paramount. Type ASPA-880 exhibits low thermal conductivity and is ideal for applications up to 1450°C (2642°F). It is used in environments where standard ceramic fiber papers will not survive.
Alumina-Silica Fiber Paper Type ASPA-970 is an industrial grade, lightweight refractory material made from alumina-silica fibers formed into highly flexible sheets. This alumina-silica fiber paper exhibits very low thermal conductivity and is designed for use in applications where flexibility, high strength and resistance to heat are of paramount. Type ASPA-970 is ideal for applications up to 1260°C (2300°F).
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).
Silica-Magnesia Papers Type RSPA-SOL are thermal insulation products capable of withstanding continuous operating temperatures up to 1260°C (2300°F). Type RSPA-SOL papers are designed to have enhanced in-vitro solubility characteristics which enable them to meet European regulatory requirements for synthetic vitreous fibers (European regulatory requirements directive 97/69/EC).
Refractory Sheet Cloth and Tape are ceramic fiber reinforced alumina composites. They offer strength, durability, flexibility and versatility required by many high temperature applications up to 1300°C(2373°F). Its high Alumina content makes Refractory Sheet Cloth and Tape highly resistant to many environments including molten aluminum as well as many types of fuel oils. When hardened with AL-Hard. Refractory Sheet Cloth and Tape become “rock hard” for greater strength.
Silica Blanket Type SB-2000 is a high temperature insulation blanket made of mechanically interlocked continuous filament amorphous silica fibers with useful properties to temperatures of 1100°C (2012°F).
Silica-Magnesia Blanket Type RSBL-SOL is made from soluble NON RCF fiber formed into a mechanically needled flexible blanket capable of withstanding continuous operating temperatures up to 1260°C (2300°F). It is designed to have enhanced in-vitro solubility characteristics. The fibers are soluble in body fluids and offer users an alternative to refractory ceramic fiber blankets. Type RSBL-SOL Blankets meet European regulatory requirements (Directive 97/69/EC).
Type SIL Silica Cloths consists of high temperature non textured amorphous silica fiber yarn, woven into an extremely strong fabrics. These non preshrunk textiles are ideal for applications with continuous use up to 1250°C (2300°F) or occasional excursions up to 1600°C(3000°F).
Rigidizers And Coatings
Al-Hard Rigidizer/Hardener is formulated for increasing the hardness of ZIRCAR Refractory Sheet products. Composed of Aluminum Oxide and hardener in a water base, it can be applied by immersing, spraying, brushing or sponging on any of ZIRCAR Refractory Sheet products.
ALUMINA COAT is an all-alumina liquid formulation used for hardening and increasing the refractoriness of the surfaces of alumina and alumino-silicate fiber products.