Non-flammable glass wool for use in general laboratory and industrial applications. Used for filtering out fine precipitates where filter papers are not suitable and the intertwined borosilicate glass fibers provide thermal insulation.

General description Wool plugs are often used in GC inlet liners to improve sample vaporization, and/or to keep non-volatile material from entering the column. They can also be used in packed GC columns, solvent desorption tubes, thermal desorption tubes, and purge traps to retain adsorbent beds.