The all-new Mack Granite, unveiled at ConExpo-Con/Agg 2026, represents a complete reimagining of Mack’s legendary vocational truck — featuring an all-new galvanized steel cab, industry-leading safety technologies including 270-degree radar coverage and Electronic Park Brake (ePark Brake) with rollaway protection, and a driver-centric interior developed with input from professional drivers. The ImpactShield windshield, with its one-piece bonded curved design, is a natural extension of that commitment: a component built to the same standard as the truck around it.
Corning Fusion5 Glass is the world’s first glass engineered specifically for automotive exterior applications, designed to withstand sharp impact strikes and resist damage in demanding operating environments. For Class 8 truck applications, in which vehicles face constant exposure to road debris, extreme temperatures and harsh jobsite conditions, the technology helps protect drivers and reduce maintenance costs.
Compared with a standard Class 8 windshield, the Mack ImpactShield delivers measurable performance advantages: 2x better sharp impact resistance, 2x better thermal shock resistance, 5x better scratch resistance, improved resistance to environmental wear and weathering, weight reduction and improved defrost performance.*
“Mack customers don’t have time for unplanned stops, and neither do we,” said Tim Wrinkle, vice president, product owner, vocational and medium duty at Mack. “Partnering with Corning to bring Fusion5 Glass to heavy-duty trucking isn’t just about using better materials; it’s about finding every possible way to keep our customers’ trucks on the job and their costs under control.”
The Mack ImpactShield’s one-piece bonded curved windshield design provides improved durability and impact resistance compared with conventional glass, supporting Mack’s commitment to maximum uptime in challenging work environments. Reduced windshield damage means fewer unplanned service events and lower glass replacement costs over the life of the vehicle, offering a tangible return on investment for fleet operators.
Corning, makers of Corning® Gorilla® Glass, bring more than 100 years of automotive materials science expertise to the collaboration, working alongside Mack and other OEMs to address their most demanding technical challenges.
“Corning Fusion5 Glass represents a significant advancement in automotive glazing solutions, addressing a real-world problem of breakage, while providing real economic benefits to customers,” said Mike Kunigonis, vice president and general manager, Corning Automotive Glass Solutions. “Introducing this technology with Mack demonstrates our relentless commitment to helping solve customers’ toughest challenges, now including those in the heavy-duty truck market.”
The Mack ImpactShield windshield featuring Corning Fusion5 Glass is standard on the all-new Mack Granite, which will be available for order in the latter half of 2026, with production beginning in January 2027 at Mack’s Lehigh Valley Operations facility in Macungie, Pennsylvania. Customers can also choose a one-piece curved Mack Aero™ windshield.
Mack ImpactShield technology will also be available as an upgrade to Mack’s Aero windshield on the Mack Pioneer, all-new Mack Anthem, and Mack Keystone models.
For more information about Mack Trucks, visit your local Mack dealer or www.macktrucks.com.
Dedicated to durability, reliability and meeting the needs of customers, Mack Trucks has provided purpose-built transportation solutions for 125 years. Today, Mack is one of North America’s largest producers of heavy-duty trucks, and Mack® trucks are sold and serviced through an extensive distribution network in more than 45 countries. Mack trucks, diesel engines and transmissions sold in North America are assembled in the United States. Mack manufacturing locations are certified to the internationally recognized ISO 9001 standard for quality, ISO 14001 standard for environmental management systems ISO 45001 standard for health and safety management systems, and ISO 50001 standard for energy management. Mack is also a proud sponsor of Share the Road, an American Trucking Associations public information campaign aimed at enhancing the safety of our nation's roadways.
Mack Trucks is part of the Volvo Group, which is driving prosperity through transport and infrastructure solutions, offering trucks, buses, construction equipment, power solutions for marine and industrial applications, financing and services that increase customer uptime and productivity. Founded in 1927, the Volvo Group is committed to shaping the future landscape of sustainable transport and infrastructure solutions. The Volvo Group is headquartered in Gothenburg, Sweden, employs about 100,000 people and serves customers in almost 180 markets. In 2025, net sales amounted to about $49 billion. For more information, please visit www.volvogroup.com.
For more information about Mack, visit our website at www.macktrucks.com
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*Testing performed and verified by Corning. Results based on comparison with a common Class 8 windshield design using soda lime glass in a 3.0mm SLG outer-ply / 3.0mm SLG inner-ply standard windshield configuration vs. an asymmetric Fusion5 Glass windshield featuring 3.3mm Fusion5 Glass outer-ply / 2.0mm SLG inner-ply.
