I don't follow the colours from Brian s above ,white sheets of asbestos are very dangerous, is the colours a grade only, I take it the must be..artisan, help me here.
John its just the types of asbestos
http://geology.about.com/od/nutshells/a/asbestosnuts.htm
http://www.hse.gov.uk/asbestos/managing/products.htm
Just a bit a bit of info
Last edited: