Silica textiles are composed of leeched fiberglass which purifies the fibers giving them higher temperature resistance and improved chemical resistance. Silica is rated to over 1800ºF and remains strong and flexible within its rated temperature range. Foundry Service offers these materials in the form of blanket, paper, fabric, rope, tape, sleeving, and custom sewn shapes. Various treatments and/or coatings are also available to suit specific applications. It’s also available in the form of Microporous insulation. With our in-house sewing and fabrication capabilities, we can produce custom sewn components such as welding blankets, insulating blankets and covers, tank and tube insulation, heat shields, gaskets & seals, and many other shapes using any combination of the many materials we offer.