The burning behaviour of this product is classified as a1 non combustible rate in accordance with gb 8624 2006 classification on burning behaviour for building materials.
Perlite fire door core.
You can also choose from 5 years 1 year and n a perlite fire door core board there are 70 suppliers who sells perlite fire door core.
About 67 of these are doors 17 are magnesium oxide boards and 1 are flakeboards.
Chimney liner due to its non flammable and insulating nature perlite is often used in fire retardant applications such as chimney liners.
A wide variety of perlite fire door core options are available to you such as free samples paid samples.