Insulfrax® Felt is manufactured from Insulfrax alkaline earth silicate wool blended with specially selected organic binders to provide flexible felts with exceptional characteristics. Our advanced felting process ensures a lightweight, high-strength product enhanced by low thermal conductivity and exceptional handling characteristics. Insulfrax Felt is available in a range of thicknesses and sheet sizes. Unifrax paper and felt products consist of a group of wet-laid, non-woven materials. The materials are manufactured using Unifrax alumino-silicate fibres wet-laid with a latex binder system to form a randomly oriented matrix. These products are flexible, lightweight, and possess excellent thermal characteristics.