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Calcium Silicate Boards
Hi-Temp fabricates products from a variety of calcium silicate boards for OEM equipment builders, general contractors, architects, and end users. From your specifications, including thickness and surface area, and we’ll help you choose the best material to use for your application.
Calcium silicate boards are non-asbestos, high temperature structural insulating boards that exhibit good thermal shock resistance and stability, consistently low thermal conductivity, high structural strength at elevated temperatures, incombustibility, electrical insulating properties when dry, excellent machinability, insolubility in water, and non-corroding properties.
What is Marinite used for?
Marinite boards are heat treated formulations making it the ideal material for conveying, containing, handling and forming molten aluminum and other non-ferrous metals. Made of fibers, micro silica and a hydrothermally-produced inorganic binder, the high heat treatment removes excess water, and minimizes shrinkage that would normally occur in service.
Oven dried formulations are used in a variety of heat insulating processes, fire protection and machined parts. Selection is commonly based on a balance between strength and insulating qualities.
What are common applications for Marinite?
Examples include oven walls and linings, soldering insulation, fire doors, fire training burn buildings, cable trays, personnel protection, and as USCG-approved insulation for marine ships and off-shore rigs. Back-up insulation applications include ladles, torpedo cars and tundishes in the iron and steel industry, lime and cement plant rotary kilns, and aluminum die cast holding furnaces.
Hi-Temp Fabrication is a premier distributor of calcium silicate boards.
View the products and resources below, and contact us with your specifications.
Key Products
Marinite A
Marinite A is a strong, machinable, non-asbestos inorganic insulation panel for conveying, containing, handling and forming molten aluminum and non-ferrous metals. The hardest of the Marinite boards.
Application: Floats, spouts, stopper pins, distribution boxes, dams, baffles, filter boxes, troughs, head boxes, transition plates, hot top rings, aluminum holding, die-cast furnaces.
Characteristics: Metals do not adhere, even when cooled and solidified. Will not contaminate metals and requires no facing wash. Conveys metals with less heat loss and at a uniform temperature requiring a lower handling temperature.
Sheet Size: 2’ x 4’, 4’ x 4’, 4’ x 8’; 1/2,3/4, 1, 1-1/4, 1-1/2, 1-3/4, 2, 3” thicknesses. 1/2” is not available as a 4’ x 8’ sheet.
Thickness tolerance: +/- 1/32″
Density: 45 pcf
Operating Temperature: 1500°F (in aluminum contact applications)
Compressive Strength: 2400 psi
Thermal Conductivity: 1.92 (800°F), 1.95 (1000°F), 1.99 (1100°F)
Manufacturer- BNZ Materials, Inc.
Datasheets- Marinite A & C Datasheets, Marinite A Safety Data Sheet
Marinite C
Marinite C is a strong, machinable, non-asbestos inorganic panel for conveying, containing, handling and forming molten aluminum and non-ferrous metals. The hardest of the Marinite boards.
Application: Floats, spouts, stopper pins, distribution boxes, dams, baffles, filter boxes, troughs, head boxes, transition plates, hot top rings, aluminum holding, die-cast furnaces.
Characteristics: Metals do not adhere, even when cooled and solidified. Will not contaminate metals and requires no facing wash. Conveys metals with less heat loss and at a uniform temperature requiring a lower handling temperature.
Sheet Size: 2’ x 4’, 4’ x 4’, 4’ x 8’; 1, 1-1/2, 2” thicknesses.
Thickness tolerance: +/- 1/32″
Density: 54 pcf
Operating temperature: 1500°F
Compressive Strength: 1600 psi
Thermal conductivity: 99 (400°F), 1.06 (1000°F)
Manufacturer- BNZ Materials, Inc.
Datasheets- Marinite A & C Datasheets, Marinite C Safety Data Sheet
Marinite P
Marinite P is a non-asbestos incombustible self-supporting board with insulating values, fire safety and exceptionally high compressive strength. Non-asbestos.
Application: Platen press operations, foundry core pallets, back-up insulation for rotary kilns and steel ladles.
Characteristics: Formed from calcium silicate with inert fillers and reinforcing agents. Structural strength and thermal insulation in one board.
Sheet Size: 48 x 96; 1/2, 3/4, 1, 1-1/2 and 2” thicknesses
Thickness tolerance: +/- 1/32″
Density: 60 pcf
Operating Temperature: 1800°F
Compressive Strength: 3050 psi – for 5% deformation
Thermal Conductivity: 1.13 (400°F), 1.16 (800°F), 1.17 (1000°F)
Manufacturer- BNZ Materials, Inc.
Datasheets- Marinite I, P and M Safety Data Sheet, Marinite P Datasheet
Marinite I
Marinite I is a non-asbestos, structurally strong incombustible panel designed with structural strength and high thermal insulating properties.
Application: For the construction of ovens, dryers, and insulating housings for the retention and control of heat. Can be machined to create heat baffles and insulating parts.
Characteristics: Formed from calcium silicate with inert fillers and reinforcing agents. An easily erected material that provides structure and insulation. Resistant to damage, corrosion and water.
Sheet Size: 48 x 96; 1/2, 3/4, 7/8, 1, 1-1/4, 1-1/2, 2 and 3” thicknesses
Thickness tolerance: +/- 1/32″
Density: 46 pcf
Operating Temperature: 1350°F
Compressive Strength: 1000 psi
Thermal Conductivity: .81 (400°F), .81 (800°F), .86 (1000°F)
Manufacturer- BNZ Materials, Inc.
Datasheets- Marinite I, P and M Safety Data Sheets, Marinite I Data Sheet
Marinite M
Marinite M is a structurally strong panel of non-asbestos, incombustible material with high thermal insulating properties.
Application: For the construction of ovens, dryers, and insulating housings for the retention and control of heat. Can be machined to create heat baffles and insulating parts.
Characteristics: Formed from calcium silicate with inert fillers and reinforcing agents. An easily erected material that provides structure and insulation. Resistant to damage, corrosion and water.
Sheet Size: 48 x 96; 1/2, 3/4, 7/8, 1″ thicknesses
Thickness tolerance: +/- 1/32″
Density: 46 pcf
Operating Temperature: 1350°F
Compressive Strength: 1000 psi
Thermal Conductivity: .81 (400°F), .81 (800°F), .86 (1000°F)
Manufacturer- BNZ Materials, Inc.
Datasheets- Marinite I, P and M Safety Data Sheets, Marinite M Datasheet
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