AGC Pyrobel® Fire-Resistant Safety Glass

The ultimate barrier to radiant heat, combining 45–120 minute fire-resistive performance with the superior clarity of low-iron, multi-ply laminated glazing. ASTM E119 and UL 263 tested.

Rigorously Tested for Maximum Fire-Resistive Transparency

As a premier fabricator and national supplier, McGrory Glass provides the technical expertise and manufacturing scale necessary to secure complex architectural projects. Our specialized fabrication of the AGC Pyrobel® line represents a commitment to delivering high-performance, fire-resistive solutions that act as a total thermal shield. By blocking radiant and conductive heat transfer, we empower architects to meet stringent ASTM E119 and UL 263 thermal barrier requirements, ensuring exit corridors and stairwells remain cool and safe for evacuation.

Providing 45 to 120 minutes of fire resistance, Pyrobel® successfully passes rigorous UL 10C positive pressure and critical hose-stream tests to effectively contain fire, smoke, and hot gases. Unlike standard fire-rated options, its low-iron, high-transparency composition delivers exceptional optical clarity and color neutrality. This provides a clear, distortion-free solution for both interior and exterior applications that seamlessly matches the aesthetics of modern float glass.

Available through our in-house fabrication in stock or cut-to-size formats, AGC Pyrobel® satisfies both ANSI Z97.1 and CPSC 16 CFR 1201 impact safety standards for high-traffic areas. Whether you are designing a healthcare facility or a sustainable corporate campus, McGrory Glass delivers the precision-engineered glazing required for modern, eco-conscious developments. We provide the reliability of a national leader with the customized service of a dedicated fabrication partner, ensuring your next project achieves maximum protection without compromising on design.

Note: AGC Pyrobel® is a fire-resistive glazing solution fabricated by McGrory Glass. Unlike fire-protective glass, Pyrobel® acts as a total thermal barrier, meeting the stringent Temperature-Rise requirements of ASTM E119 and UL 263 for applications where radiant heat must be blocked to allow for safe evacuation.

Icon Target Environment Icon Key Threat Mitigation Icon Visual Goal

Exit Corridors and Stairwells

ASTM E119 / UL 263: Blocks radiant heat transfer to keep egress routes below 250°F rise.

Safe Passage: Large, transparent spans that prevent panic by visually connecting exit routes.

Healthcare Fire Barriers

Multi-Hazard Protection: 60-120 minute fire-resistance combined with high-level acoustic insulation (up to 49dB).

Patient Comfort: Maintains quiet, healing environments with maximum natural light and visibility.

Educational Separation Walls

Impact & Thermal Shielding: CPSC Cat II impact safety + full thermal barrier to protect students from radiant heat.

Open Learning: Replaces restrictive opaque walls with clear glass for better campus supervision.

Server Rooms & Data Hubs

Heat Sensitive Protection: Prevents external fire heat from damaging sensitive electronics and hardware.

Sleek Protection: High-quality, distortion-free glass that complements modern tech-driven interiors.
Attributes
  • Fire
  • Impact-Safety
  • Hose-Stream
  • Framing + Butt-Glazed
  • Security Options
  • Available as IGU
  • UL Listed
  • Intertek Listed
  • LEED
McGrory Glass AGC Pyrobel® Vision Line butt-glazed fire-resistive curved glass wall with minimal joints at Hackensack Meridian Health School of Medicine.
McGrory Glass AGC Pyrobel® Vision Line butt-glazed fire-resistive curved glass wall with minimal joints at Hackensack Meridian Health School of Medicine.
AGC Pyrobel® Vision Line butt-glazed fire-resistant glass atrium with minimal joints and high transparency at EightyFen in London.

AGC Pyrobel® Pre-Hose-Stream Testing

AGC Pyrobel® Post-Hose-Stream Testing

Why AGC Pyrobel® Fire-Resistant Safety Glass?

Ultimate Barrier to Radiant Heat

As a high-performance fire-resistive product, AGC Pyrobel® acts as a total thermal shield that blocks the transfer of radiant heat. This allows it to meet stringent ASTM E119 and UL 263 standards, ensuring that one side of the glass remains cool enough for safe passage even during a 120-minute fire.

Superior Optical Clarity

Manufactured with low-iron glass, Pyrobel® provides exceptional visual clarity and color neutrality without the greenish tint common in standard glazing. This ensures that safety does not come at the expense of aesthetics, providing architects with a clear, distortion-free solution for both interior and exterior views.

Human-Impact Safety and Rigorous Durability

Engineered to meet ANSI Z97.1 and CPSC 16CFR1201 (Category I and II) impact safety ratings. It is an ideal choice for high-traffic areas such as doors and sidelites, where it provides robust protection against accidental impact while maintaining its fire-resistive integrity.

Eco-Conscious and Sustainable Design

Pyrobel® supports green building initiatives and LEED certification goals by being Red List free and a low-emitting material with no VOCs. With an Environmental Product Declaration (EPD) available and a Cradle to CradleTM Silver certification, it is a sustainable choice for environmentally responsible construction.

Versatile Architectural Integration

Approved for use in any standard fire-rated framing system with the same rating, this glazing offers seamless integration into a wide variety of architectural designs. McGrory Glass provides the product in both stock sheets and custom cut-to-size formats, including configurations for both interior partitions and exterior building envelopes.

Third-Party-Certified Performance Standards

AGC Pyrobel® is fully certified to pass the UL 10C positive pressure test and the rigorous hose-stream test, ensuring it remains intact under extreme thermal shock and pressure. This provides 45 to 120 minutes of reliable life-safety protection, effectively containing fire, smoke, and hot gases within the area of origin.

AGC Pyrobel® Resources

Featured Resources
Datasheets
AGC Pyrobel® 45-120 Minute Fire-Rated by McGrory Glass Data Sheet
Download
Brochures
McGrory Fire-Rated Glass & Framing Systems Digital Quick Guide
Download
Specifications
Section 08 88 13: McGrory Fire-Rated Glazing 3-Part Specifications – AGC Pyrobel® & SCHOTT Pyran®
Download
BIM files
forster Fuego®Light by McGrory Glass 60 minute Fire Rated Double Door Elevation w/ Vision Line Butt-Glazing
Download
BIM files
forster Fuego®Light by McGrory Glass 120-90 minute Fire-Rated Double Door Elevation w/ Vision Line Butt-Glazing
Download
BIM files
forster Fuego®Light by McGrory Glass 120-90 minute Fire-Rated Fixed Vision Line Butt-Glazing Elevation
Download
BIM files
forster Fuego®Light by McGrory Glass 60 minute Fire Rated Fixed Vision Line Butt-Glazing Elevation
Download
View by Category
  • BIM files
  • Brochures
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Technical Data

Product Name Minute Rating Applications Performance Standards Heat Barrier Performance Hose-Stream Test Impact-Safety-Rated Appearance

AGC Pyrobel® 45

45 Minute

Interior/Exterior

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

Yes

Pass

Yes

Clear, Low-Iron Glazing

AGC Pyrobel® 60

60 Minute

Interior/Exterior

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

Yes

Pass

Yes

Clear, Low-Iron Glazing

AGC Pyrobel® 90

90 Minute

Interior/Exterior

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

Yes

Pass

Yes

Clear, Low-Iron Glazing

AGC Pyrobel® 120

120 Minute

Interior/Exterior

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

Yes

Pass

Yes

Clear, Low-Iron Glazing

Listed Sizing Per Application | Fire-Resistant Safety Glazing
AGC Pyrobel® 45-120 Minutes

Minute Rating Applications Building Code Marking Location Product Designation VLT STC Rating Thickness Weight

45 Minute

Doors, Sidelites, Borrowed Lites, Transoms

D-H-T-45

OH-45

Interior

45-16EG

89%

39 dB

3/4”

(21.1 mm)

9.8 lbs/ft2

45 Minute

Doors, Sidelites, Borrowed Lites, Transoms

D-H-T-45

OH-45

Exterior

45-16EG

89%

39 dB

3/4”

(21.1 mm)

9.8 lbs/ft2

60 Minute

Doors, Sidelites, Borrowed Lites, Transoms, Walls

D-H-60

OH-60

W-60

Interior

60-25

88%

43 dB

1-1/16”

(26.6 mm)

12.3 lbs/ft2

60 Minute

Doors, Sidelites, Borrowed Lites, Transoms, Walls

D-H-60

OH-60

W-60

Exterior

60-25EG

87%

43 dB

1-3/16”

(30.4 mm)

13.9 lbs/ft2

90 Minute

Doors, Sidelites, Borrowed Lites, Transoms, Walls

D-H-90

OH-90

W-90

Interior

90-30EG6

86%

44 dB

1-7/16”

(36.7 mm)

17.4 lbs/ft2

90 Minute

Doors, Sidelites, Borrowed Lites, Transoms, Walls

D-H-90

OH-90

W-90

Exterior

90-30EG6

86%

44 dB

1-7/16”

(36.7 mm)

17.4lbs/ft2

120 Minute

Walls

W-120

Interior

120-54

83%

49 dB

2-1/8”

(54 mm)

25.4 lbs/ft2

120 Minute

Walls

W-120

Exterior

120-54EG

83%

49 dB

2-1/4”

(57.8 mm)

27 lbs/ft2

Framing Options
Forster Steel Fire-Rated Framing by McGrory Glass Systems

Framing Glazing Application Rating Type Performance Standards

forster fuego® light

AGC Pyrobel® 60-120 min

Temp-Rise Door/Window-Wall

Fire-Resistive

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

forster thermfix® vario

AGC Pyrobel® 60-120 min

Interior/Exterior Curtain Wall

Fire-Resistive

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

forster presto

AGC Pyrobel® 45-60 min

Door/Window

Opening-Protective

ASTM E119, NFPA 80, NFPA 252, NFPA 257, UL 9, UL 10B, UL 10C, UL 263, ULC S101, ULC S104, ULC S106, ANSI Z97.1, CPSC 16CFR1201

Listings & Test References

ASTM
  • ASTM E119
NFPA
  • NFPA 80
  • NFPA 252
  • NFPA 257
UL
  • UL 9
  • UL 10B
  • UL 10C
  • UL 263
ULC
  • ULC S101
  • ULC S104
  • ULC S106
ANSI
  • ANSI Z97.1
CPSC
  • 16 CFR 1201
Product Certification Testing References
  • ASTM E119: Standard Test Methods for Fire Tests of Building Construction and Materials
  • NFPA 80: Requires that fire doors be inspected and tested immediately after the initial installation and then at a minimum annually after that.
  • NFPA 252: Standard Methods of Fire Tests of Door Assemblies
  • NFPA 257: Standard on Fire Test for Window and Glass Block Assemblies
  • ANSI Z97.1 and CPSC 16 CFR 1201 Cat I and Cat II (Category I and/or Category II) Safety- Impact performance criteria

Proud partners of world-class fire-resistant glass manufacturer, AGC.

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