New fire resistant materials are tested at Greenford in Middlesex.
Item title reads - Greenford.
Testing fire resistant metal. Middlesex.
M/S of thermite burning through ordinary metal, M/S of the holes left by it. M/S of the thermite on new heat and shock resistant steel panel, M/S showing the panel is hardly affected after the chemical has burnt out. Various men stand around and look at it. M/S of flame from oil furnace on another panel. Various shots as roofing tiles made from ordinary material and the new material are bombed, it doesn't leave any impression in the new material.