Coatings/Mixes

The specialties family of products provides a range of product forms which offer a choice of materials to address a wide range of application problems, such as resistance to hot gas erosion, flame impingement, the ability to be formed into special shapes and configurations, installation into blind hot spots and hard-to-insulate areas. These products also possess the advantages inherent with other Fiberfrax® ceramic fiber insulating materials: high temperature resistance, excellent insulating properties, thermal shock resistance, chemical stability, and ease of installation.

FC-25 Tamping Mix

FC-25 tamping mix is a material that provides a casting mix which can be applied in small areas such as furnace access and site doors, tube sheets, and as a refractory backup.

FC-25 tamping mix is a wet mix containing Fiberfrax fibers and inorganic binders. It is poured directly from the container and tamped into place. Dry density is 20-25 pounds/cubic foot.

Fiberfrax® QF-180™, Qf-180™ Blue, and QF-150™

Fiberfrax® QF-180™, Qf-180™ Blue, and QF-150™ coating cements provide a range of consistencies for brush, spray, and trowel-on application. These coatings have a 1260°C (2300°F) temperature grade rating. They possess good adhesion, thermal reflectance, dielectric strength, hot gas erosion resistance, and effectively resist wetting by many nonferrous molten metals.

Fibermax® Caulk

Fibermax® caulk is a high-temperature blend of Fiberfrax® bulk fibers, Fibermax® polycrystalline high-alumina fibers, and inorganic binder. This product is available in convenient to use caulking tubes. With a temperature grade rating of 1538°C (2800°F), it can be used to caulk joints and cracks in both high-temperature Fiberfrax® lining systems and conventional refractories. Fibermax® caulk is also used as a patching material around deteriorating burner blocks.

Fiberstick™ Refractory Cement

Fiberstick™ refractory cement is a high-temperature, air-setting mortar used as an adhesive to securely bond Fiberfrax Bonded modules and other product forms to refractory surfaces.
For additional information on Fiberstick Cement, typical applications, product properties and performance, or to identify the recommended product for your application, see the product information sheet below or contact the Unifrax Application Engineering Department at 716-768-6500.

Fiberfrax® LDS and LDS AL-Moldable®

Fiberfrax® LDS and LDS AL-Moldable® consist of Fiberfrax® ceramic fibers dispersed in a sticky water-based refractory binder. These materials have a putty-like consistency which permits application by caulking, troweling, or hand forming. Both products adhere well to most surfaces. Drying is accomplished at a non critical, elevated temperature, and the resulting dried material is strong, hard, and erosion resistant.

LDS AL-Moldable possesses excellent resistance to wetting by many nonferrous molten metals and is used extensively in molten aluminum contact applications.

Fiberfrax® Pumpable-LDS and Pumpable-GS

Fiberfrax® Pumpable-LDS and Pumpable-GS were designed for applications into difficult to reach areas requiring insulation. Both Pumpable-LDS and Pumpable-GS have temperature grade ratings of 1260°C (2300°F). A conventional air-operated extrusion pump permits application of these products directly from their container into furnace and boiler hot spots, refractory cracks, furnace door jambs, and other areas requiring high-temperature insulation and sealing.

Rigidizer™

Rigidizer™ an inorganic liquid hardener, has a temperature grade rating of 1260°C (2300°F). They are generally used to increase the durability and surface erosion resistance of Fiberfrax blanket, module, and board products. Rigidizer hardener tends to remain on the material surface of the product form to which it is applied, whereas Rigidizer W hardener contains an organic wetting agent to promote saturation into the substrate.

Rigidizer™W

Rigidizer™W, an inorganic liquid hardener, has a temperature grade rating of 1260°C (2300°F). It is generally used to increase the durability and surface erosion resistance of Fiberfrax blanket, module, and board products. Rigidizer W hardener contains an organic wetting agent to promote saturation into the substrate.

Fiberfrax® Topcoat™2600 Insulation Mix

Fiberfrax® Topcoat™2600 Insulation Mix has a temperature grade rating of 1426°C (2600°F),and is designed for application into difficult to reach areas requiring insulation.

A conventional air-operated extrusion pump permits application of these products directly from their container into furnace and boiler hot spots, refractory cracks, furnace door jambs, and other areas requiring high-temperature insulation and sealing.

Fiberfrax® Topcoat™3000 and Topcoat™M

Fiberfrax® Topcoat™3000 and Topcoat™M coating cements have a temperature grade rating of 1538°C (2800°F). Topcoat 3000 consists of a blend of regular ceramic fibers and high temperature Fibermax® polycrystalline fibers combined with an inorganic binder system. This product imparts excellent flame and hot gas erosion resistance to other product forms and effectively minimizes thermal shrinkage of fiber blankets, modules, and boards.

Topcoat M is a blend of Fibermax fibers in a dry powder form which is mixed with a prescribed amount of potable water at the job site. It provides protection against slag and alkali attack when applied to Fiberfrax high-temperature boards and modules.

Vari-Form™ Castable Materials

Vari-Form™ castable materials provide casting mixes which can be applied in small areas such as furnace access and site doors, tube sheets, and as a refractory backup. Vari-Form is a dry mix available in two density grades of 30-40 and 50-60 pounds/cubic foot. Water is added to the dry product at the job site and mixed thoroughly. It is then simply poured and troweled into the area to be insulated. The mix sets in about 18 hours and can then be heated to operating temperature.

Refer to the product Safety Data Sheet (SDS) for recommended work practices and other product safety information.

For additional information on products, properties and performance, typical applications, or to identify the recommended product for your application, see the product information sheet listed above or contact the Unifrax Application Engineering Department at 716-768-6460.