SuperLite® II-XLM 120

120 Minute Fire Resistive Multilaminate Glazing



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

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Intertek Icon
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5 Year Warranty
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Energy Efficient

Product Advantages

  • Fire resistive multilaminate glazing offering maximum fire and safety with hose stream for 120 minute wall applications.
  • Meets ASTM E119 for full radiant heat protection and CPSC Cat. II (400 ft. lbs.) impact safety requirements.
  • Can be used in interior and exterior applications, including clear butt-glazed walls for maximum vision and transparency.
  • Optically clear glazing without wires or tints.
  • Can be easily incorporated in GPX® Architectural Series Fire Resistive framing, GPX® SNAPCAP or GPX® Builders Series Temperature Rise framing for a complete fire resistive assembly.
  • Standard 5 year limited warranty.

maximum sizes

Fire RatingApplicationMax. CV AreaMax. CV WidthMax. CV HeightStops
120 MinutesWalls*4,256 in.²
(2.75 m²)
38 in.
(0.97 m)
112 in.
(2.84 m)
1 in.
(25.4 mm)

*With framing and butt-glazed.

Product Specifications

Thickness 2-1/8 in. (53 mm)
Weight 25 lbs. / sq. ft. (122 kg/m²)
Fire Rating 120 minutes with hose stream
Impact Safety Rating CPSC 16 CFR 1201 Cat. I and II, ANSI Z97.1
Sound Reduction Rw=46 dB
Light Transmission 71%
R-value 1.18
U-value 0.845
Application Walls

listings and standards

SuperLite® II-XLM 120 is listed and labeled by Underwriters Laboratories and Intertek, nationally recognized testing laboratories approved by OSHA.


  • Intertek: 38267; 40626
  • UL: U550; U553


  • 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
  • CPSC 16 CFR 1201 Cat. II
  • ANSI Z97.1
  • CAN/ULC S101, CAN/ULC S104, CAN/ULC S106
GPX® Architectural Series Fire Resistive
GPX® SnapCap

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.

Clear, Fire Resistive Butt-Glazed Walls Create Transparent, Connected and Code-compliant Stairwell

The University of Wisconsin School of Business Grainger Hall’s east and west wings are now linked by a state-of-the-art Learning Commons that encourages collaboration through technology and design. To achieve maximum transparency while meeting code requirements, the architects specified 9 ft. tall, clear, fire resistive butt-glazed walls using SuperLite II-XLM in GPX Architectural Series perimeter framing.

A Nine-Story Lesson in Branding Excellence

SuperLite II-XLM 120 clear butt-glazed walls with 9 ft. GPX Builders Series 90 minute Temperature Rise doors creates a light-filled, transparent 2-hour stairwell that is on-brand with Waste Management’s new Houston Headquarters.