0.3-1mm raw/expanded Vermiculite for Refractory materials, Fireproof, Fireplace

Application

1. Fire Protection

Vermiculite is recognised as a material particularly suited for fire protection. Vermiculite-based products range from factory made boards and panels to premixed coatings suitable for application by mechanical spray or by hand plastering techniques on a range of structures. These coatings are widely used in the petrochemical industry and in the tunnel lining.

2. Friction Linings
Vermiculite is now used extensively in the friction lining industry (e.g. brake and clutch linings) as a safe alternative to asbestos, and plays an important role in this field.

3. Insulation in Steelworks and Foundries
Good thermal insulation, low density and its natural refractory properties combine with ease of application to make vermiculite a highly suitable material for use in steelworks and foundries. It is used for hot topping molten steel to reduce heat loss from ingots and ladles and generally as a loose-fill insulator.

4. Packing Materials
Exfoliated vermiculite is a useful packaging medium. Not only is it lightweight, clean and easily poured around irregular shaped objects, it also provides a good baffle against shocks caused by impact and improper handling.

Being highly absorbent, it safely retains leaks from packed materials such as hazardous chemicals. As it is inorganic it does not present any potential fire hazards.

Exfoliated vermiculite can also be used as a packing material for storing fruit, bulbs and tubers. Vermiculite degrades naturally, so is easily disposed of. Being soft and non-abrasive it has also been used effectively for insulation and cushioning the base of plastic-lined swimming pools.

5. Refractory Products

Vermiculite for refractory and high temperature insulation is normally bonded with alumina cements, fire clays and silicates to produce a wide range of vermiculite products which, depending on type and application can withstand hot face temperatures of up to 1,100ºC.

Some of the refractory products that are made using vermiculite are:

• pre-fired clay bonded insulation firebricks
• castable high alumina concretes for back up insulation
• high alumina bonded bricks, slabs and special shapes
• silicate bonded insulating shapes and moulded products etc.

 1) Raw/Unexpanded Vermiculite

2) Expanded Vermiculite