Aggregates
For insulating castables and for insulating irregular spaces where other types of refractories are difficult to use Manufacturer: BNZ Materials, Inc. |
Firelite insulating aggregates are formed by crushing large slabs of specially formulated low-density insulating materials. The pulverization process is done with special equipment designed especially for this type of material.
Available Forms of Firelite Aggregate
The first two numbers in the following Firelite aggregate designations refer to the refractoriness or heat resistance of the aggregate. The second two numbers refer to the approximate density of the slab. An LI designation means it is low in the impurities of ferric oxcide and titania. The LI designated aggregates are suitable for use in reducing atmospheres when combined with low iron calcium aluminate cements.
2337 LI Can be combined with portland cement or calcium aluminate cements to produce a low-density, low-temperature insulating castable for 2300?F service or below. Replaces 2335 LI.
2645 LI A lower density verison of 2653 LI used for the very lightest castables in the 2400 to 2600?F range.
2653 LI Formerly called 2400 LW Aggregate, it is a high purity material for temperatures of 2400 to 2600?F and is extensively for low-iron insulating castables.
2855 LI Used as a high temperature filler material and for the lighest weight high temperature castables. Its high purity is absolutely necessary for high temperature applications.
2861 LI An alternative to 2855 LI, it is used when a higher strenght insulating castable is desired.