Aqueous Vermiculite Dispersion (AVD) fire extinguishing agent is a new, revolutionary technology that has key benefits over existing solutions utilising fixed and portable delivery techniques.
AVD is an aqueous dispersion of chemically exfoliated Vermiculite is applied in the form of a mist.
Vermiculite is the name given to a group of hydrated laminar-iron magnesium silicates. Raw vermiculite consists of thin, flat flakes containing microscopic layers of water.
When Vermiculite is exfoliated either thermally or chemically, the microscopic layers of water are removed and this either causes expansion (thermally exfoliated) or creates microscopic, individual platelets that are freely suspended in water (chemically exfoliated).
AVD is applied in the form of a mist, we have tested the following deployment systems:
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*The technical data provided herein reflects typical indicative results of testing of products under controlled conditions, to provide the best information to allow end users, specifiers, installers, contractors, retailers and alike to determine the suitability of Dupré products for intended application.