There was also a deposit of asbestos at that mine so the vermiculite from libby was contaminated with asbestos.
Does perlite insulation contain asbestos.
While breathing any.
In the united states most of the vermiculite insulation containing asbestos was sourced from a mine near libby montana which was active until 1990.
But perlite essentially a form of volcanic glass is not formed in the same way as vermiculite and is never found in the company of asbestos.
The data is based upon perlite products mined and processed at various locations throughout the world.
Insulation made from this material represents over 70 percent of the vermiculite insulation found in u s.
A separate study supported by the perlite institute also published in 2002 concludes that perlite is a safe product citing studies establishing.
Does perlite contain asbestos.
Scientists with the united states geology survey usgs have created a hand held spectrometer to determine if vermiculite insulation contains deadly amphibole asbestos.
This report summarizes the results of the findings.
The raw vermiculite material taken from the mine was contaminated with asbestos.
1 perlite institute is an industry association formed in 1949 to promote the use of perlite insulation materials and to conduct research about perlite.
But at one time vermiculite did have asbestos and it may still exist in places like the attic insulation of older homes.
Extracted from the mine between 1920 and 1990 this vermiculite insulation was sold mainly but not exclusively under the trademark zonolite attic insulation.
Does perlite contain asbestos.
Vermiculite insulation product from the libby mine in montana is known to contain high levels of amphibolic asbestos.
Does vermiculite contain asbestos.
The recent innovation should provide a time saving technique for commercial and home inspectors.
If you re buying horticultural vermiculite sold in stores today then that vermiculite does not contain asbestos.
Concerns about vermiculite contaminated with asbestos fibers prompted people to wonder whether if that wasn t also the case with perlite another expanded rock used to lighten gardening soils.
The perlite institute offers a 2002 article confirming that perlite does not contain asbestos.
