Contains smoke, flames and blocks the passage of radiant heat.

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Intertek Icon
USA Made Icon
5 Year Warranty
Fire Rated Icon
Hose Stream Icon
Starphire Ultra Clear
CMAST Component
HPD Declare_icon
Ballistic Rated Icon
Blast Rated
Forced Entry
Energy Efficient

Product Advantages

  • Maximum fire and impact safety with hose stream and full radiant heat protection.
  • Largest tested and approved sizes up to 4,952 in.² (3.19 m²) for door applications in standard 1-3/8 in. (35 mm) profile.
  • Fully tested, approved and listed for temperature-rise doors, windows/openings and wall applications.
  • Tint-free and optically clear.  Perfect for property line requirements.
  •  Available with Starphire Ultra-Clear® glass by Vitro.
  • Now available as an approved glazing component in the NFRC CMAST database.
  • Available in any custom architectural make-up, such as laminated glass and energy-saving insulated units with NFRC certifications when used with GPX® Architectural Series Fire Resistive framing.
  • Can be customized to protect against forced entry, bullets, blast, hurricane, sound and more.
  • Standard 5 year limited warranty.
  • USA manufactured for fast lead times and competitive pricing.

maximum sizes

Fire RatingApplicationMax. CV AreaMax. CV WidthMax. CV HeightStops
60 MinutesDoors, Sidelites, Transoms,
Windows/Openings, Walls
4,952 in.²
(3.19 m²)
124 in.
(3.15 m)
124 in.
(3.15 m)
5/8 in.
(16 mm)*

Product Specifications

Thickness 1-3/8 in. (35 mm) standard
2-1/8 in. (54 mm) when insulated with clear Low-E
Weight 14 lbs. / sq. ft. (69 kg/m²)
Fire Rating 60 minutes with hose stream
Impact Safety Rating CPSC 16 CFR 1201 Cat. I and II, ANSI Z97.1
Sound Rating in GPX Framing STC 43 standard profile
STC 43 when insulated with 1/4 in. Low-E
Visible Light Transmittance 0.786 with clear standard
0.877 with clear low-iron
Hard Body Impact Classification ASTM C1629/C1629M Level 3
Soft Body Impact Classification ASTM E695 Level 3
Surface Abrasion Resistance ASTM D4977 Level 3
Outdoor-Indoor Transmission Class OITC 39 standard profile
OITC 37 when insulated with 1/4 in. Low-E


listings and standards

SuperLite® II-XL 60 is listed and labeled by Underwriters Laboratories and Intertek, nationally recognized testing laboratories approved by OSHA.


  • Intertek: 32841; 56534; 29689; 29495; 51170
  • UL: KCMZ.R14212; KCMZ7.R14212; U518; U536; U541
  • CSFM: 4075-1660:0120; 1080-1660:0106
  • LARR: 25786
  • HPD: 29036


  • UL 9, UL 10B, UL 10C, UL 263
  • NFPA 80, NFPA 251, NFPA 252, NFPA 257
  • ASTM E119, ASTM E152, ASTM E163, ASTM E2074, ASTM E2010-01, ASTM C1629/C1629M, ASTM E695, ASTM D4977
  • CPSC 16 CFR 1201 Cat. II
  • ANSI Z97.1
  • CAN/ULC S101, CAN/ULC S104, CAN/ULC S106 
  • NFRC 100, NFRC 200, NFRC 500
GPX® Architectural Series Fire Resistive
GPX® Builders Series Temperature Rise
GPX® EZ Frame
GPX® Blast System
GPX® Ballistic Series
GPX® Hurricane
GPX® Curtain Wall

Related Case Studies

Learn more about fire rated glass and framing through our case studies. We highlight innovative design applications in real-world settings and show how architects continue to push the boundaries of what fire rated glass and framing can do.

Fire Rated Glazing Adds Visual Appeal to Parking Garages

Codes required fire wall separations between parking garages and businesses, markets, homes and other uses. Architects can replace entire walls with glass to open up buildings like never before. For example, SuperLite II-XL in GPX Framing by SAFTI FIRST® is a USA-made fire resistive transparent wall system that blocks radiant heat and meets the same stringent ASTM E-119/ UL 263/ NFPA 251 code requirements that any opaque fire rated wall must meet.

Boston Building Protects Property Line with Fire Resistive Curtain Wall

The west-facing elevation of The Kensington in Boston, MA, was in close proximity to the property line, prompting the building official to require part of the curtain wall had to meet ASTM E-119/NFPA 251/UL263 for 60 minutes. SAFTI FIRST® supplied SuperLite II-XL 60 insulated with Solarban 70XL in GPX Curtain Wall Framing in a continuous span from the seventh to the tenth floors.

Cincinnati Art Museum Renovation Features Transparent Stairwell

When the Cincinnati Art Museum embarked on an $11 million renovation, the architects wanted the entrance and main stair to be as inviting as possible. Transparent, fire rated glazing from SAFTI FIRST® was a key component of the design solution. To maximize the vision area in door itself, SuperLite II-XL 60 in GPX Builders Series Temperature Rise full-lite doors. In some of the stairwell doors in less prominent locations, SAFTI FIRST® provided SuperLite X-90 for the vision panels under 100 sq. inches.

Fire Rated Glass Adds Safety to Nanobioelectronics Clean Room

The Joint School of Nanoscience & Nanoengineering within the Gateway University Research Park in Greensboro, North Carolina is a new 105,000 sf interdisciplinary research facility dedicated to academic and industrial research. To create an open, transparent lab design, SAFTI FIRST® provided SuperLite II-XL 60 in GPX Frames for the 60 minute walls.

Utah Junior High Adds Fire Rated Glass to Corridors

AJC Architects of Salt Lake City, Utah looked to SAFTI FIRST® when it came time to renovate the media center and build a new counseling center for North Layton Junior High School. They realized they could take advantage of a clear fire-rated glazing to keep the look of the media center and provide an open, welcoming entrance to the new counseling center.

Technical College Renovation Features Fire Rated Glass Walls

Central to the building's design are several simulation labs, practice labs, and mock operating rooms where students can observe instructors and each other as they perform their tasks. Because these labs are in areas where a 1-hour fire rating has to be maintained, the architects chose to combine vision, transparency, and fire safety with SuperLite II-XL 60 in GPX Framing.

Medical Center Maximizes Natural Daylight with Fire Rated Glass

Central to the new UC Davis Medical Center Surgery and Emergency Services Pavilion's design was a large skylight that allows natural light to vertically flow into the atrium area and other light wells throughout the building. However, they also wanted to let light flow horizontally into the adjacent hallways, rooms, etc. Because the walls in the atrium and light wells have to meet a 2-hour rating, Stantec Architects approached SAFTI FIRST® for a solution. Large portions of the 2 hour atrium and light well walls were made “transparent” with the use of SuperLite II-XL 120 in GPX Framing.

Fire Rated Glass Provides Privacy, Daylight at Ridgewood High

For a recent renovation of a stairwell and exit corridors at Ridgewood High School in Illinois, the design team specified SuperLite II-XL 60 in GPX Architectural Series Framing for its optical clarity, storefront-like appearance, and high STC ratings. In order to meet the code requirements and maximize the daylight penetrating into the building, the architects decided to use fire rated glass in the one-hour exit corridor. Because the glazing exceeds 25% of the wall area, fire resistive glass and framing assemblies rated equal to the wall had to be used.

GPX Framing with Sunshade Connectors at Doolittle BART Station

For BART's Doolittle Maintenance Facility at the new Oakland Airport connector, SAFTI FIRST provided 60 minute, fire resistive wall openings in the exterior using SuperLite II-XL 60 insulated with low-e glazing in GPX Framing with a clear anodized finish. SAFTI FIRST engineered a connection that allows the structural elements of the GPX Architectural Series Framing System to support an integral sunshade system, instead of being hung in front of it. The Doolittle Bart Station is one of the first installations of the GPX Architectural Series System with sunshade connections, which also include SLCC New Instruction and Administrative Building in Salt Lake City, UT.

Fire Rated Curtain Wall Performance in Dramatic Weather Conditions

As far as extreme environments go, Wisconsin has some of the most dramatic in North America. During the winter months, temperatures regularly dip well below freezing, and in the summer months the temperatures can reach up to 90 degrees Fahrenheit with significant humidity levels for extended periods of time. Given these dramatic weather conditions, the materials chosen for the building envelope should not only protect building occupants from the elements, but ensure their comfort as well.

Fire Rated Glass Contributes to Salt Lake City Public Safety Building’s Sustainable and Resilient Design Goals

The Salt Lake City Public Safety Building in Utah is the first U.S. Public Safety Building to achieve both a net-zero rating and LEED Platinum status and designed to survive a 7.5 magnitude earthquake and remain fully functional afterwards. This ensures that the city’s emergency operations center can survive and help the city recover in the event of an earthquake or a similar disaster. Fire rated glass contributes to achieving sustainable design goals by maximizing daylight penetration deep within a building and shared artificial lighting between spaces. It also ensures that occupants can exit the building safely in the event of an earthquake, which can damage sprinkler systems and render them ineffective.

Fire Resistive Curtain Wall Helps Hospital Meet Fire and Seismic Requirements

Ratcliff was chosen as the architect to design the new three-story, 60,000 square foot San Jose Downtown Health Center that includes urgent care for adults and children, primary care for pediatric, OB/GYN and family medicine, behavioral health services, laboratory, pharmacy and radiology departments. Their design takes advantage of glazing’s ability to draw natural light from the outdoors to create a warm, pleasing atmosphere that promotes healing. Part of the hospital’s exterior curtain wall had to be fire rated for one hour and meet seismic requirements per SB 1953 as well.

Army Hospital Features First-ever Fire Resistive, Blast Rated Curtain Wall that Meets DoD Antiterrorism Standards

The Department of Defense (DoD) published the Unified Facilities Criteria (UFC) 4-010-01 Antiterrorism Standards for Buildings as a mandatory guideline to mitigate the threats of terrorism against buildings and ensure the safety of the individuals that inhabit them. It applies to all newly constructed DoD Components, DoD inhabited buildings, billeting and high-occupancy housing, as well as already inhabited buildings where the renovation costs are 50% or more than the value of the building (for a complete list, please see UFC 4-010-01 section 1.8).

Fire Resistive Glass Opens New Doors for Adaptive Reuse Project

Adaptive reuse, or the process of taking an old building or structure and repurposing it for something other than what it was originally designed for, has gained a lot traction with developers and architects alike – and for many good reasons. For one thing, it is more economical and sustainable to work with an existing structure than to demolish an old building, clean up the site, and rebuild with entirely new materials. It also helps preserve historical structures that add character to the community, as well as reduce urban sprawl. For the multifamily sector, we’ve seen adaptive reuse applied to old schools, government buildings, warehouses, etc. because these structures are usually centrally located in many downtown areas.

Fire Rated Glazing Gets Visitors ‘In the Spirit’ of Historic Bourbon Distillery

As America celebrated National Bourbon Day on June 14, downtown Louisville also celebrated the highly anticipated grand opening of the Old Forester Distillery. This event is also touted as a triumphant return of America’s first bottled bourbon in continuous production by the same family before, during, and after Prohibition to Whiskey Row. See how SAFTI FIRST® fire rated glass walls helped create an immersive visitor center with a fully operational distillery, cooperage and bottling line.

Enhancing the #TargetRun with Oversized Fire Resistive Butt-Glazed Glass Walls

Who hasn’t uttered the words or at least heard of a “Target run”? What started out as a marketing campaign to get more foot traffic in their brick and mortar stores has become somewhat of a cultural phenomenon. Aside from being a call-to-action, #TargetRun is a trending hashtag used by shoppers to share their in-store shopping experience on social media.

USA-made Fire Rated Glass Helps UC Merced Achieve Triple Zero Sustainability

The Merced 2020 Project, an ambitious, $1.2B, extensive expansion of the UC Merced campus, is “the largest public-private partnership social infrastructure project completed in U.S. history,” according to the university’s website. This includes new facilities used for academic, administration, laboratories, housing and recreation. This was truly exciting, and it struck a chord with SAFTI FIRST® because Merced is home to our manufacturing facilities.