CEMENT BOARD TYPE ZIRCEM-11
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REFRACTORY COMPOSITES Type ZIRCEM-11 Refractory Cement Board is a self supporting, high strength, rigid refractory product fabricated from calcium silicate, inert fillers and reinforcing agents. Its high structural strength combined with high thermal insulating value make it ideal for many electrical, fireproofing and heat processing equipment applications resistant, non-corroding, and extremely water-resistant. ZIRCEM-11 is available in full size 4' x 8' panels which offer major economic advantages in the construction of ovens, dryers, and other insulated housings for the retention and control of heat. ZIRCEM-11 can be readily fabricated into various sizes and shapes for heat baffles and all types ZIRCEM-11 is not affected by moisture or high humidity, and will not rust, rot or corrode. The panels will not disintegrate even after prolonged immersion in water. While the material can be painted if desired, preservative treatments are not required for interior applications. ZIRCEM-11 is hygroscopic and electrical resistance is reduced when it absorbs moisture. For electrical applications, ZIRCEM-11 components should be thoroughly dried or moisture proofed before use. SUGGESTED APPLICATIONS • Load-bearing gaskets • Press plates • Machine guards • Laboratory benchtops • Fume hood linings • Busbar supports • Terminal boxes and strips • Electricalcoil supports • Component mounting plates • Collarsand bushings • Foundry core plates • Induction and muffle furnace walls • Industrial and baking oven shelving • Soldering plates • Splash guards • Welding shields REFRACTORY SHEET CEMENT BOARD ZIRCEM-11 is monolithic That is oven dried, so it machines into exceptionally fine and intricate parts without The board is neutral gray in color, and may lighten uniformly with time. ZIRCEM-11 requires practically no maintenance. The hard, smooth surface does not normally need painting or preservative treatment, but either can be applied if a different aesthetic appearance is desired. Installation Details ZIRCEM-11 can be applied directly to framing members with screws, bolts or mechanical fasteners. The board is recommended for interior applications only. All bolts or fasteners must be placed in predrilled oversized holes no closer than 1/2" from any edge. Oversized holes must be 1/16" or larger diameter for 1/4" bolts and 1/8" or larger diameter for 1/2" or larger fasteners. Bolt heads and nuts must have an adequate washer bearing surface. Applications where vibration or motion exists must utilize rubber or neoprene gasketed washers. ZIRCEM-11 should be stored horizontally in a dry, flat area. ZIRCAR Refractory Composites, Inc. e-mail: sales@zrci.com Home page: http://www.zrci.com This information, which is subject to change, is offered solely for yoL^ consideration and should not b^^ It is not to be understood aspermission or recommendation topracticeapatented invention withoutalicenseand the usershould determine whether relevant patents exist. Technical Data

CHARACTERISTICS & PROPERTIES Maximum Use Temperature*, °C(°F) Compressive Strength**, MPa(psi) Linear Shrinkage, % Thermal Conductivity**, Mosture Content, % dry weight Water Absorbtion, % Fire Hazard, ASTM E 84 flame sread smoke development Volume Resistivity, ASTM D-257, ohm-cm Surface Resisitvity, ASTM D-257, ohm-cm Dielectric Strength, ASTM D-495, volts/mil length, width / thickness * Maximum use temperature is dependent on variables such as stresses, both thermal and mechanical, and the chemical environment that the material experiences. ** Properties expressed parallel to thickness. *...