HYTEX High Performance Textiles
ARMATEX Coated Fabrics and Textiles
CERMEX Thermal Insulation Materials
THERMOSEAL Refractory Specialites
THERMOPAK Fabricated Components and Engineered Products
ARMATEX Coated Fabrics and Textiles


Mid-Mountain Materials, Inc. is a leading manufacturer of engineered thermal insulation barriers and seals that provide environmental protection, emissions control, and energy conservation.   WIth over 37 years of experience, Mid-Mountain has the capability to provide innovative thermal insulation materials including:




Mid-Mountain Materials, Inc. Announces ISO 9001:2008 Certification

Certification demonstrates that Mid-Mountain Materials, Inc. has a quality management system in place to consistently produce products that exceed customer expectations.

Mercer Island, WA / February 14, 2014 - Mid-Mountain Materials, Inc., a Seattle based manufacturer of high-temperature resistant insulation materials, is proud to announce its recent ISO 9001:2008 certification.

To achieve ISO certification, a company must fulfill requirements outlined by the International Standardization Organization (ISO).  Specifically, ISO 9001:2008 requires an organization to demonstrate a quality management system that has the ability to consistently provide product that meets customer requirements, as well as statutory and regulatory requirements.

ISO 9001:2008 certification also means the organization has demonstrated its commitment to enhancing customer satisfaction through the application of the management system, with processes for continual improvement and the assurance of conformity to customer, statutory and regulatory requirements.



Mid-Mountain Materials, Inc. has received ANSI/FM 4950 Approval on nine high-temperature resistant materials used in thermal insulation and welding applications.  The FM Approval certification is globally recognized and respected, and ensures the highest quality product is being provided to protect companies from property loss.

In addition, the ANSI/FM 4950 Standard sets performance requirements for welding blankets, welding pads, and welding curtains used as a means of preventing the ignition of combustibles during welding, cutting, and other hot works operations.

Mid-Mountain offers nine products that meet the stringent requirements of FM Approval certification in both Canada and the United States.  These FM Approved products include ARMATEX® Coated Fabrics, SILTEX® Woven Silica Fabric, and HYTEX® Fiberglass Fabric. All of these materials are widely used in welding applications for the protection of equipment and personnel.


Since 1976, Mid-Mountain has been engineering leading edge solutions for environmental protection and thermal barrier applications with products that are designed to withstand temperatures from 400ºF/04ºC to over 3000ºF/1630ºC.  In addition to thermal insulation materials, we devise custom solutions for conditions that require the utmost in chemical and abrasion resistance, including: 

Heat resistant fabrics / textiles

Flame resistant fabrics / textiles

Chemical resistant fabrics / textiles

Abrasion resistant fabrics / textiles

Servicing the global market in industries such as aluminum, aerospace, hearth products, primary metals, petro-chemical, shipbuilding, appliance, marine, and many more, Mid-Mountain Materials, Inc. is committed to being the leading, diversified manufacturer of high quality industrial textile products.


We at Mid-Mountain welcome the opportunity to work with your company, to find better ways to protect your people, your equipment, and our environment. In partnership we can engineer unique, cost effective solutions to your thermal application requirements.


Mid-Mountain Materials,  Inc.
Environmental Protection Products and Thermal Barriers for a green world