This type consists of a glass core over-braided with textured glass yarn. In result, this product is both soft and mechanically durable.
Type 494 can be used as thermal insulation with all kinds of transfer ducts, heating installations, machinery and equipment. Thanks to its softness and elasticity it is used as static sealing in all types of chambers, driers and furnaces. This type is recommended for use in systems for treatment and removal of flue and post-reaction gases. It is also popular as insulation of furnace and fireplace doors.