General Info
Type ZIRCEM Refractory Sheet Cement Boards are 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 up to 600°C(1112°F). ZIRCEM boards are highly damage resistant, non-corroding, and extremely water-resistant. ZIRCEM boards are 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 boards can be readily fabricated into various sizes and shapes for heat baffles and all types of insulating parts.
ZIRCEM boards are 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 boards are hygroscopic and electrical resistance is reduced when it absorbs moisture. For electrical applications, ZIRCEM boards components should be thoroughly dried or moisture proofed before use.
ZIRCEM boards are monolithic That is oven dried, so it machines into exceptionally fine and intricate parts without delamination.
The board is neutral gray in color, and may lighten uniformly with time. ZIRCEM boards require 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.
Properties
| TYPE | ZIRCEM-11 | ZIRCEM-6 |
| Density, g/cc (pcf) | 1.57(98) | 1.602(100) |
| Maximum Use Temperature*, °C(°F) | 600(1112) | 260(500) |
| MOR**, MPa(psi) | ||
| MOR @ room temp. | 211(3000) | 183(2600) |
| Compressive Strength**, MPa(psi) | 939(13350) | 731(10400) |
| Linear Shrinkage, % | ||
| length, width / thickness | length, width / thickness | |
| 12 hrs. at 315°C(600°F) | 1.14 / 0.41 | 0.85/3.7 |
| 12 hrs. at 538°C(1000°F) | 0.44 / 1.33 | |
| Thermal Conductivity**, | ||
| W/mK(BTU/hr ft2 oF/in.) | ||
| 121°C(250°F) | 0.34(2.40) | 0.34(2.40) |
| Moisture Content, % dry weight | 7 | 12 |
| Water Absorbtion, % | 21 | |
| Fire Hazard, ASTM E 84 | ||
| flame spread | 0 | |
| smoke development | 0 | |
| Volume Resistivity, ASTM D-257, ohm-cm | 1.25 x 1013 | 7.1 x 10₁₀ |
| Surface Resisitvity, ASTM D-257, ohm-cm | 1.59 x 1016 | |
| Arc Resistance, ASTM D-495, sec. | 272 | 260 |
| Dielectric Strength, ASTM D-495, volts/mil | 56 | 35 |
*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.
‡ Properties expressed perpendicular to thickness.
Composition
| TYPE | ZIRCEM-11 | ZIRCEM-6 |
| Nominal Composition, wt% | ||
| CaSiO3 | 94 | 94 |
| SiO2 | 1 | 1 |
Instructions
Installation Details
ZIRCEM boards can be applied directly to framing members with screws, bolts or mechanical fasteners. These boards are 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 boards should be stored horizontally in a dry, flat area.
SUGGESTED APPLICATIONS
- Load-bearing gaskets
- Spacers and supports
- Press plates
- Machine guards
- Laboratory benchtops
- Fume hood linings
- Busbar supports
- Transformerspacers
- Terminal boxes and strips
- Electricalcoil supports
- Component mounting plates
- Arc shields
- Collarsand bushings
- Foundry core plates
- Induction and muffle furnace walls
- Industrial and baking oven shelving
- Soldering plates
- Splash guards
- Welding shields
Download the ZIRCEM Refractory Sheet Cement Board PDF File
Other Information
AVAILABILITY
ITEM# STANDARD SIZE
SX60 ZIRCEM-6, 48” X 96” X ¼”
SX61 ZIRCEM-6, 48” X 96” X ½”
SX62 ZIRCEM-6, 48” X 96” X ¾”
SX63 ZIRCEM-6, 48” X 96” X 1”
SX64 ZIRCEM-6, 48” X 96” X 1.5”
SX65 ZIRCEM-6, 48” X 96” X 2”
SX66 ZIRCEM-6, 48” X 48” X ¼”
SX67 ZIRCEM-6, 48” X 48” X ½”
SX68 ZIRCEM-6, 48” X 48” X ¾”
SX69 ZIRCEM-6, 48” X 48” X 1”
SX70 ZIRCEM-6, 48” X 48” X 1.5”
SX71 ZIRCEM-6, 48” X 48” X 2”
SX72 ZIRCEM-6, 24” X 48” X ¼”
SX73 ZIRCEM-6, 24” X 48” X ½”
SX74 ZIRCEM-6, 24” X 48” X ¾”
SX75 ZIRCEM-6, 24” X 48” X 1”
SX76 ZIRCEM-6, 24” X 48” X 1.5”
SX77 ZIRCEM-6, 24” X 48” X 2”
SX81 ZIRCEM-11, 48” X 96” X ¾”
SX82 ZIRCEM-11, 48” X 96” X 1”
SX83 ZIRCEM-11, 48” X 96” X 1.5”
SX84 ZIRCEM-11, 48” X 96” X 2”
SX85 ZIRCEM-11, 48” X 48” X ½”
SX86 ZIRCEM-11, 48” X 48” X ¾”
SX87 ZIRCEM-11, 48” X 48” X 1”
SX88 ZIRCEM-11, 48” X 48” X 1.5”
SX89 ZIRCEM-11, 48” X 48” X 2”
SX90 ZIRCEM-11, 24” X 48” X ½”
SX91 ZIRCEM-11, 24” X 48” X ¾”
SX92 ZIRCEM-11, 24” X 48” X 1”
SX93 ZIRCEM-11, 24” X 48” X 1.5”
SX94 ZIRCEM-11, 24” X 48” X 2”
ZIRCEM PRODUCTS MEASURING 48″ X 96″ ARE SUBJECT TO A $100 CRATING CHARGE. Custom boards, shapes and preparations are available on request. Our forming processes, large inventory of custom tooling and state of the art machining techniques allow a wide variety of sizes and shapes to be made. Special geometries such as disks, rings and custom-machined shapes can be fabricated. Tight tolerance machining,
Please contact us with your special requirements.