3 mm thick lightweight, flexible Welding Blanket is made from Ceramic Fibers whose average fiber diame-ters are between 3-4.5 microns with an average tensile strength of 5.075 psi.
It comprises of Al2O3 about 44%,SiO2 about 51% and Fe2O3, K2O + Na2O etc. as balance compositions.
They are provided with Vermiculate Coating and reinforced with SS Strands.
The sides are seamed with FR cloth and it are provided with Eyelets at all corners.
The low bulk density, comparative high refractoriness, low thermal conductivity and chemical inertness make vermic-ulite satisfactory for many types of thermal insulating and fire-resisting qualities.