Vermiculite is a natural mineral mined from volcanoes and other mines, which expands through exposure to heat, a process known as exfoliation. It has many uses not only confined to the moulding and casting market. We sell it primarily as a filler for plasters and resins due to its bulking and lightening properties.
We stock two different grades of Vermiculite. Superfine and Medium. Superfine makes a good filler for plaster where effects are being developed, for example by striking the face of set plaster, this exposes the vermiculite and gives a rougher, stone like finish.
Medium Grade is a bigger particle size, which lends itself to lightening the casts and is frequently used in GRG work. Vermiculite also adds some fire proofing reducing flame spread. We said that Vermiculite wasn't only used in our markets. Its also used in Horticulture as a soil conditioner and in livestock farming as a food filler.
There have been recent reports of Vermiculite causing Silicosis and also the presence of Asbestos particles and fibres contained among it. We can promise you that our Vermiculite from Silvaperl is tested for these risks and certified as clear. Please refer to the MSDS.
Available in 1kg to a pallet, simply indicate volume from the drop down box.
DUE TO DEMAND, WE NOW ONLY STOCK SUPERFINE & MEDIUM. Should you require the fine grade, please contact us. The fine option has been removed from the options.