SuperLite® II-XLB 60

60 Minute Fire Resistive Glazing for Oversized and Butt-Glazed Applications



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

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5 Year Warranty
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Starphire Ultra Clear
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Ballistic Rated Icon
Blast Rated
Energy Efficient

Product Advantages

  • Largest tested and approved clear view area of 10,000 in.² (6.45 m²) of any fire resistive glazing product up to 1 hour.
  • Tint-free, optically clear fire resistive glazing meeting ASTM E119, ANSI/UL 263 and CAN/ULC S101 with hose stream.
  • Butt-glazed option available.
  • Can be easily combined with GPX® Architectural Series Fire Resistive framing for a complete and code compliant fire resistive assembly.
  • Meets CPSC Cat. II impact safety, the federal maximum safety standard.
  • High STC ratings.
  • UL and Intertek listed and labeled.
  • 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 MinutesWalls10,000 in.²
(6.45 m²)
125 in.
(3.18 m)
125 in.
(3.18 m)
5/8 in.
(16 mm)*

Product Specifications

Thickness 1-7/8 in. (47.6 mm)
Weight 17.65 lbs. / sq. ft. (86.17 kg/m²)
Fire Rating 60 minutes with hose stream
Impact Safety Rating CPSC 16 CFR 1201 Cat. I and II
Glass Make-up Fire resistive tempered glazing with intumescent interlayers
Visible Light Transmittance 0.750 with clear standard
0.861 with clear low-iron
Application Walls

listings and standards

SuperLite® II-XLB 60 is listed and labeled by Underwriters Laboratories, a nationally recognized testing laboratory approved by OSHA.


  • Intertek: 58084
  • UL: U560; W477
  • HPD: 29036


  • ASTM E119
  • ANSI/UL 263, ANSI Z97.1 
  • CAN/ULC S101
  • CPSC 16 CFR 1201 Cat. II 
GPX® Architectural Series Fire Resistive
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.

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.

Light-Filled Transit Center Receives Honor with the Help of Fire Resistive Butt-Glazed Glass Walls

Bringing the outside in was an important design element for the newly opened BART Milpitas Transit Center. ASTM E-119/UL 263/CAN ULC S101 rated, fire resistive SuperLite II-XLB 60 butt-glazed walls were used for the 1 hour light wells to allow abundant natural light to flow vertically and horizontally through two levels – from the entrance/ticketing level and all the way down to the tracks where the train cars are.