Finkl Mar-X™ is a remarkably tough and long lasting mold steel with excellent corrosion resistance and high temperature physical properties.

Finkl Mar-X™ resists atmospheric as well as chemical corrosion due to plastic formulation or by-products formed during the plastic injection process. Mar-X™ has the general corrosion resistance of Type 304 stainless and, in many cases, eliminates the need for chrome plating required with other mold materials.

Mar-X™ is processed in Finkl's vacuum arc remelt (VAR) facility in order to achieve superior cleanliness and minimum segregation, assuring polishability to lens quality standards.

Finkl Mar-X™ is forged utilizing wide-die techniques, which assure consolidated centers and fine grain structure, resulting in improved properties throughout.

Finkl Mar-X™ is solution treated using our computer-controlled heat treat furnaces following thermal processing cycles developed to minimize the distortion of the mold during machining.

Finkl Mar-X™ is 100% sonic tested to the most rigid industry standards and is fully warranted.