Manufacturers and Distributors of Vermiculite,
and selected Refractory Materials
Insulating bricks and shapes are unique in that it is the only of its type done in South Africa with a ceramic bond
Some of the areas that the products find themselves in include applications such as refractory materials and waterproofing screeds
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Technical Data of a Typical Culite S
Bulk density: 0,56g/cm3 (@ ambient temperature)
Crushing strength: 1,4 Mpa (@ ambient temperature)
Perm. Linear Change: -
Spalling resistance: +30 cycles (0°C -
Maximum. Service.Temperature: 1100°C
Thermal conductivity: 0.13 W/mK (@250 °C)
Data are typical of day-
In addition to a great number of standard and special sizes Culite are also available in large slabs resulting in fewer mortar joints and significant labour savings.
Extensive lists/drawings of potential applications are available at your request.
An >40% alumina mortar is generally compatible with Culite S. If in doubt contact our technical staff for guidance.
INSUTECH TECHNICAL DATA
The name vermiculite is derived from the Latin “Vermicular”, meaning “to breed worm”. Vermiculite is a naturally occurring mica mineral of laminar structure which has been heated in a furnace to create exfoliated granules with a very high surface area and inter-
Mineral wool products
These highly versatile refractory ceramic fibre products are lightweight, have low thermal conductivity, low heat storage and excellent resistance to thermal shock. They are available in a variety of densities, thicknesses and temperature capabilities.
High temperature insulating fire bricks based on a variety of raw materials and manufacturing processes offer superior insulating properties, minimising energy use, combined with the ability to withstand chemical attack and high heat conditions.
The Culite range of processed vermiculite products
Formulated to meet specific thermal and physical requirements Culite S is made from high purity South-
Its light weight and low thermal conductivity (k-
Culite H is a high strength vermiculite insulating brick. Its volume stability and thermal expansion levels make. Culite H is compatible with normal hot face firebricks. Uses include muffle kilns, pottery and enamelling furnaces, backing brick in boilers, annealing furnaces, soaking pits, linings for ducts and flues, etc.
Vermiculite board is made from a naturally occurring aluminium-