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GB-60 ®

Product catalog summary

Introduction to GB-60 Stainless Steel
GB-60 is a specialized stainless steel polish developed by Zahner to reduce the high reflectivity of standard grain finishes. This patented process creates a fine grain on the metal surface, resulting in a smooth and uniform light-diffusion finish ideal for architectural applications.

Characteristics and Appearance
The GB-60 finish is known for its softly grained reflection, offering a bright yet diffuse appearance. It exhibits a crystalline look, with light diffused by small overlapping impact craters. The surface changes appearance based on lighting conditions, appearing bright in sunlight, pewter-like on cloudy days, and glowing with purple and reddish silver hues in low sunlight.

Durability and Maintenance
GB-60 stainless steel is suitable for both interior and exterior applications. It is durable and easy to maintain, with the polish enhancing its longevity. If damaged, the surface can be repaired by a Zahner technician using a specialized polishing system.

Manufacturing Process
The GB-60 process involves blasting the metal surface with glass beads using high-pressure air. This creates small, overlapping indentations that scatter light and diffuse reflectivity, resulting in the unique finish.

Contact Information
A. Zahner Company provides further information and services related to GB-60 stainless steel. They have facilities in Kansas City, Missouri, and Grand Prairie, Texas.

Catalog excerpts

STAINLESS STEEL POLISH

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A Prestige Metal Polish from Zahner GB-60 is a Zahner material process developed to soften the highreflectivity of standard grain finishes on stainles steel. The patented process uses precision-controlled machinery to etch stainless steel with a fine grain. The resulting finish is the finest, smoothest, and most uniform light-diffusion metal surface available for architectural metal. An Iconic Appearance GB-60 stainless steel is characterized by a softly grained reflection. The finish is bright but diffuse, almost crystalline in appearance. Direct light reflecting off the surface is diffused...

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Microscope photographs comparing GB60 stainless steel (Left) with Angel Hair stainless steel (Right). How GB-60 surfaces are manufactured The GB-60 process involves feeding glass beads from a hopper into a high-pressure stream of clean, dry air. The outlet sprays the beads at high speed onto the surface of the metal. The impact of the blasting to the metal surface creates a small indentation. The indentations are rounded, and they tend to overlap. This overlapping crater produces light-scattering behavior, effectively diffusing the reflectivity. Durable for Exterior and Interior Applications...

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ZAHNER8 [email protected] A. Zahner Company www.azahner.com Kansas City Facility 1400 E. 9th Street Kansas City, Missouri 64106 United States of America p +1 (816) 474-8882 f +1 (816) 474-7994 Dallas-Area Facility 2860 Alouette Dr. Grand Prairie, TX 75052 United States of America p +1 (469) 348-2000 f +1 (469) 348-2003

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