WAM® 50 LC – Alumina Based Low Cement Castable

WAM® 50 LC is a general purpose low cement castable comprised primarily of a 50% alumina mullite containing aggregate. The mullite aggregate and lower cement levels in WAM® 50 LC allow the material to be suitable for use up to 2,800°F.


Westmoreland Advanced Materials, LLC low cement castable compositions incorporate the latest available technology in regards to particle size distribution, surfactants, and in-situ reactants that promote volume stability at temperature, density, non-reactivity, water demand, working time and placement characteristics. You will not find a superior product in the market place. It is available in several versions. The coarse version increases the material abrasion and impact resistance. Packages are made available for aluminum penetration resistance, alkali resistance, and thermal shock resistance. A fine package is also available for patching and  intricate precast shapes.


WAM® 50 LC finds application in several areas as a high temperature, low reactivity thermal protection material. This includes ladles for iron and steel foundries, kiln car decks, annealing furnaces and bases, soaking pits and ladle lip rings, WAM® 50 LC  has been employed as an economical roofing material in aluminum furnaces and as a common backup material to brick in several application areas.

Typical Technical Data
WAM® 50 LC                                                                                            PDF Download

Classification:Low Cement Castable
Placement Method:Vibration Casting, Pumping / Shotcreteing
Available Application Packages:

AL - Aluminum Penetration Resistant
C - Coarse Aggregate
F - Fine Aggregate
AR - Alkali Resistant
TSR - Thermal Shock Resistant

Typical Water Requirement (%wt):5.5
Material Required for Estimating (lb/ft3):151
Maximum Recommended Service Temperature (°F):2800

Calculated wt.% Based on Common Oxides

Aluminum Oxide (Al2O3):54.6 %
Silicon Dioxide (SiO2):40.4 %
Titanium Dioxide (TiO2):1.7 %
Iron(III) Oxide (Fe2O3):0.8 %
Calcium Oxide (CaO):2.2 %
Magnesium Oxide (MgO):0.1%
Combined Alkali Oxide (Na2O + K2O):0.2 %


Modulus of
Rupture (psi)
Cold Crushing
Strength (psi)
Linear Change (%)
After 230154252015,900n/a
After 1500151206013,850-0.3
After 2800n/an/an/a+0.3

Additional technical data may be available. Please contact your sales representative for more information.
Data on this table represent typical properties and cannot be used for specification purposes.