INSWOOL Ceramic Fiber Products are a family of products that are manufactured from alumina-silica materials into blanket, vacuum formed products, modules, bulk, paper, textiles and moldables . The INSWOOL Ceramic Fiber Product line has a wide temperature range for applications from 1500°F to 3000°F. Those products are made from spun fibers that provide:

• Lower Thermal Conductivity
• Heat losses are reduced at high temperatures
• Lower Heat Storage
• Faster heat up and cool down for increased productivity
• Reduces Fuel Consumption
• Lowers Operating Costs
• Thermal Shock Resistance
• Lightweight
• Allows for extreme change in temperatures
• Longer furnace campaigns
• Allows flexibility in firing cycles
• Excellent Handling Strength
• Excellent Sound Absorption

These products also offer excellent chemical stability and resistance to chemical attack from most corrosive agents.

Products

INSWOOL Ceramic Fiber Blankets are a complete product line for applications from 1500°F to 2600°F. These products are produced from a spun ceramic fiber which is needled into lightweight, flexible blankets and contain no inorganic binders. INSWOOL Blankets are durable and have superior tensile strength.

INSWOOL blanket products are easy to install. No special forming is required and plant personnel can be used to install the product. Furnace structures can be made lighter and furnace components can be shop fabricated with INSWOOL blanket linings. Also, there is no curing or dry out time when using INSWOOL ceramic fiber blankets. These linings can be fired to peak operating temperature immediately after installation.

INSWOOL fiber blankets have excellent chemical stability and are unaffected by most chemicals. The only exceptions are hydrofluoric and phosphoric acid.

  Types of INSWOOL Blanket

INSWOOL HP is a high purity blanket that is made from a 50 – 50 blend of Alumina and Silica that has superior tensile strength and handling capabilities. This product can be used in applications up to 2300°F and is available in 4, 6 and 8 pound densities.

INSWOOL HTZ is a blanket used in higher temperature applications up to 2600°F with low shrinkage characteristics. The product is made from a blend of Alumina, Silica and Zirconia. HTZ is also available in 4, 6 and 8 pound densities.

INSWOOL 1800 is an alumina silica blanket used in applications up to 1800°F. It is a high quality product that can be used as back up insulation for most furnace applications.

Typical Applications

INSWOOL HP Blanket

• Furnace Linings for Ceramic, Petrochemical and Metals Markets
• Removable Insulating Blankets & Pads
• Furnace & Boiler Repair
• Furnace Door Linings
• Glass Furnace Crown Insulation
• Atmosphere Furnace Linings
• Annealing Covers Seals
• Soaking Pit Seals
• Flexible High Temperature Pipe Insulation
• Investment Casting Mold Wrap
• Insulation for Steam & Gas Turbines
• Expansion Joint Seals
• Reformer Header Insulation
• High Temperature Gasketing
• Filtration

INSWOOL HTZ Blanket

• Reheat Furnaces
• Forge Furnaces
• Soaking Pit Seals
• High Temperature Kilns & Furnaces
• Ceramic Kilns
• Boiler Linings

INSWOOL HTZ Blanket (con’t)

• Glass Furnace Crown Insulation
• Refractory Kilns
• Furnace Linings & Seals

INSWOOL 1800

• Backup for Fiber Linings
• Expansion Joint Material
• Insulation Pads
• Furnace Packing Material

INSWOOL Bulk products demonstrate excellent high temperature resistance, thermal stability and resistance to vibration, as well as outstanding low thermal conductivity and low heat storage. It is resistant to attack under reducing atmospheres. It is attacked by acids and concentrated alkalies. The thermal and physical properties of INSWOOL BULK are completely restored upon drying if it becomes wet by water, steam, or oil.

INSWOOL BULK products have a density of approximately 6 lb/ft 3 as it comes from the carton. The packed density ranges between 6 and 12 lb/ft 3 by hand packing, thus the installed density will vary depending upon the force used when packing.

INSWOOL Bulk products can be hammer-milled for vacuum forming applications in manufacturing boards or shapes.

INSWOOL HP Bulk

INSWOOL-HP BULK is a blend of high purity alumina-silica bulk ceramic spun fiber blanket which can be used at temperatures to 2300°F.

INSWOOL HP Bulk

INSWOOL-HTZ BULK is a blend of alumina-silica-zirconia bulk ceramic spun fiber which can be used at temperatures to 2600°F.

INSBOARD is a family of vacuum-formed, ceramic fiber boards with excellent insulating properties and high mechanical strength, as well as superb thermal stability. It is manufactured from bulk ceramic fiber and special binders which create a strong, dense product that has low thermal conductivity, excellent resistance to thermal shock and chemical attack.

INSBOARD is an excellent choice for applications with high velocity, vibration or mechanical stress. The products possess superior strength and good handling characteristics. INSBOARD is lightweight and easy to install. The products are rigid and self supporting which make installation simple. The products can be machined or cut into shapes.

INSBOARD comes in standard sizes of 24”x 36” and 24” x 48” with various thicknesses of ¼”, ½”, 1”, 1½” and 2”. Special sizes and thicknesses (up to 4”) are available upon request. The product line has three temperature ranges for applications from 1500°F to 3000°F.

INSWOOL Ceramic Fiber Modules are a product line designed for full thickness linings in furnace applications. The CSW (Center Stud Weld) and FQW (Folded Quick Weld) modules are made from high quality SPUN INSWOOL HP and HTZ blanket. INSWOOL Spun blanket has superior handling characteristic and tensile strength. The INSWOOL blanket is attached to the module hardware by two 304 stainless steel rods which penetrate the blanket. This provides for longer life and durability for all applications.

Standard sizes for modules are 12” wide x 12” long with thicknesses from 4” to 12”(in 1” increments). Special size modules are also available upon request. Standard densities are 8#, 9.3#; 10#, 10.7# and 12#. The modules are compressed to the specified density to help prevent shrinkage. Both attachment systems provide for quick installation and less downtime for the installer.

CSW Modules (Center Stud Weld)

The CSW Module system is a module using a 304 stainless steel “U” channel and two rods that runs through the blanket.

This module is installed by using a pre-positioned stud pattern. This is done by welding a 304 stainless steel 3/8” stud to the furnace wall. Each CSW module is then attached over the stud and tightened with a bolt.

CSW modules linings can be installed in parquet or soldier course pattern using batten strips. Dual studs and holes attachments can be added for larger size CSW modules (24” x 12” or 24” x 24”) upon request.

FQW Modules (Folded Quick Weld)

The FQW Module system is a folded blanket module that is made into 2 halves with a Quick Weld attachment. This new design provides for no blind welds in the lining design.

The advantage to the FQW module is the speed of installation. It requires no stud pattern or layout. With a quick weld stud gun, place the module on the wall and pull the trigger. FQW modules can be installed in a parquet or soldier course pattern using batten strips.

Applications

INSWOOL 2300 Paper

INSWOOL 2300 paper is processed from washed, spun, high purity fibers formed into highly flexible sheet. It is recommended for continuous use at temperatures up to 2300 0 F in applications where insulating efficiency and high strength are important.

Because it is processed from washed fiber, INSWOOL 2300 paper is clean, has low shot content and offers low thermal conductivity. It’s highly uniform structure assures homogeneous thermal conductivity throughout, and its high tensile strength makes it ideal as a gasket, seal or spacer material.

INSWOOL 2300 contains an organic binder to provide increased handling strength at room temperature. It possesses excellent chemical stability and resists attack from most corrosive agents. Exceptions are hydrofluoric and phosphoric acids and concentrated alkalis. Because of its high purity chemistry, INSWOOL 2300 paper resists both oxidation and reduction. If it becomes wet due to water, steam or oil, its thermal and physical properties will return upon drying.

INSWOOL Utility Paper

INSWOOL Utility Paper is processed from unwashed spun, high purity alumina-silica fibers formed into a highly flexible sheet. It is recommended for continuous use at temperatures up to 2300 ° F in applications where insulating efficiency is not critical. INSWOOL Utility grade is designed for use primarily in applications where thermal stability and high temperature protection up to 2300 ° F are most important, such as high temperature parting plane in refractory linings or as an expansion joint.

INSWOOL Utility Paper contains organic binder to provide increased handling strength at room temperature. It possesses excellent chemical stability and resists attack from corrosive agents. Exceptions are hydrofluoric and phosphoric acids and concentrated alkalis. Because of its high-purity chemistry, INSWOOL Utility Grade resists both oxidation and reduction. If it becomes wet due to water, steam, or oil, its thermal and physical properties with return upon drying.

Paper Applications

• Ware Separator
• Ceramic and Glass
• Metal Clad Brick
• Glass Tank Backup
• Kiln Car Deck Covering
• Petrochemical
• Transfer Line Protection
• Welding & Brazing Protection
• Steel & Nonferrous
• Investment Casting Mold Wrap
• Ladle Refractory Backup
• Backup Linings for Metal Troughs
• Hot Top Linings
• Coke Oven Door Seals
• Aerospace Heat Shields
• Appliance
• Self Cleaning Ovens

Moldable

INSWOOL MOLDABLE is a 2300°F ceramic fiber, putty-like consistency material, used for linings up to three inches thick, to pack large voids, or even fill thin cracks. It can be troweled or hand packed into place.

INSWOOL MOLDABLE is light weight, with very low thermal conductivity, and therefore a good insulator, yet it develops a strong hot face surface to withstand physical abuse and high air velocities as compared to conventional ceramic fiber products. It is also used as a high temperature gasket material, and as a general purpose patching product. Its ability to compress makes INSWOOL MOLDABLE an excellent material for expansion joints and for filling contraction cracks. It is also an ideal material to fill ceramic cuplock anchors for ceramic fiber blanket linings, and can be used in contact with molten aluminum.

INSWOOL MOLDABLE has excellent thermal shock resistance, and can be dried or put into service immediately with no pre-heat required, with the exception of direct molten metal contact. Then the INSWOOL MOLDABLE should first be thoroughly dried, and fired, to remove all mechanical water the entire depth of the material, to avoid dangerous steam explosion.

Pumpable

INSWOOL PUMPABLE is a 2300°F ceramic fiber, putty-like consistency material, especially formulated for pumping with special equipment. It is usually used for pumping behind existing hot face linings for insulating purposes; however it can be used to fill small voids and thin cracks.

INSWOOL PUMPABLE is a light weight material with very low thermal conductivity, and therefore a good insulator. It dries to a firm, board-like consistency, for good sturdy integrity. Its ability to compress makes it ideal for expansion joints, and for filling contraction cracks. In addition it is used in contact with molten aluminum.

Although normally used as a backup material for hot spots, as mentioned above, when used as a hot face material, the INSWOOL PUMPABLE has excellent thermal shock resistance, and can be dried or put into service immediately with no pre-heat required, with the exception of direct molten metal contact. Then the INSWOOL PUMPABLE should first be thoroughly dried, and fired, to remove all mechanical water the entire depth of the material, to avoid dangerous steam explosion.

INSWOOL Ropes and Braids provide a family of textile products for the industry used in temperatures up to 2300°F. Typical applications for these products include gasketing, packing and sealing in and around high temperature heating equipment. Produced from ceramic fibers, these products exhibit excellent chemical stability, resisting attack from most corrosive agents. Exceptions are hydrofluoric and phosphoric acids and concentrated alkalies. These fiber ropes and braids also resist oxidation and reduction. If wet by water of stream, thermal properties are completely restored upon drying. No water of hydration is present.

3- Ply Twisted Rope

Produced by twisting 3-plys of ceramic fiber wicking, this product is relatively soft and lower in density than other ropes or braids. 3-ply Twisted Rope is the most economical choice. This product is also available with an Inconel insert which drastically increases the resistance to mechanical abuse.

High Density Rope

High Density Rope is made from many strands of ceramic fiber yarn formed into 3-plys and then twisted, resulting in a product that is higher in density and more durable than the 3-ply Twisted Rope. This provides for longer life in most industrial furnace applications.

Round and Square Braid

The highest density of all our rope products, the ceramic fiber is braided to provide maximum resistance to mechanical abuse. Aside from its superior strength, round and square braids also exhibit minimal unraveling when cut.