Fire-Rated, Bullet-Resistant-Rated Transparent Wall Panels

Up to 120 Minutes

Pilkington Pyrostop® BR is fire rated for up to 120 minutes and offers up to UL 752 Level III bullet resistance ratings. It can be combined with Smartgard® products to achieve up to UL 752 Level 8 bullet resistance rating.

“It's not what you look at that matters, it's what you see.”

-Henry David Thoreau


  • Fire-rated for up to 120 minutes with required hose stream test
  • Bullet resistance ratings from UL 752 Level I to UL 752 Level VIII available in different makeups
  • Protection against radiant and conductive heat transfer
  • Impact safety-rated - meets ANSI Z97.1 and CPSC 16 CFR1201 (Cat. I and II)
  • May be lightly sandblasted or etched on one side without affecting fire rating
  • Withstands thermal shock
  • For use in interior and exterior applications
  • 5-year limited warranty
  • Large sizes available
  • Available in insulated units with other glass products, including (but not limited to): Tinted; One-Way Mirror; Low-E; Reflective; Art Glass; Translucent Interlayer (for added obscurity and privacy)
  • Fits in Fireframes® Heat Barrier Series windows. Contact TGP for allowable ballistic ratings
  • Available for use in compliant frames by others (see frame manufacturer for details)
  • Multi-laminate, not a sensitive polymer gel unit
  • Comprised of layers of Pilkington Optiwhite nearly colorless, wireless, low-iron float glass and clear intumescent interlayers
  • If you are looking for fire-rated forced-entry glass, please visit Pilkington Pyrostop® laminated to School Guard Glass®

Sales of Pilkington Pyrostop are a cooperative effort between Technical Glass Products and Pilkington North America.



Classified and labeled by Underwriters Laboratories, Inc.® and Underwriters Laboratories of Canada. File number for labeled fire-rated assemblies is R13377 (45 minutes) and R38725 (60-120 minutes). Tests performed in accordance with:

UL 9 UL 10B UL 10C UL 263 UL 752
NFPA 80 NFPA 251 NFPA 252 NFPA 257
MEA 241-00-M LARR 25798
NIJ 0108.01

Product Data

For technical data, including Smartgard Bullet Resistant Levels and Maximum Allowable Sizes, view product fact sheet.


Fireframes® Heat Barrier Series

60/90/120 Minute
Fire-Rated Doors and Frames

Combine with Pilkington Pyrostop® glass to provide a barrier to radiant and conductive heat transfer.

The time, in minutes or hours, that materials or assemblies can be expected to prevent flames and smoke from spreading.

As heat develops within the source area, pressure within the enclosed room begins to build relative to the pressure outside. Once the fire reaches equilibrium in the positive pressure zone, smoke, hot gases and flames are forced through any openings in the door or window assembly. Testing to the UL 10C standard more closely simulates real fire conditions.

Blocks radiant and conductive heat transfer from one side of the glass to the other. A required characteristic of glass used as a wall.

Classified and labeled by Underwriters Laboratories, Inc.® (UL), an independent product safety certification organization.

Immediately following a furnace test, heated glass is subjected to water from a fire hose. The cooling, impact and erosion created by the hose stream tests the integrity of the glass. In the U.S., the hose stream test is required for all fire ratings over 45 minutes (all fire ratings require it in Canada).

Available as a temperature rise door with Pilkington Pyrostop® fire-resistive-rated glass for 60-90 minute applications

Temperature rise doors provide a barrier to radiant and conductive heat transfer.

Available in stainless steel frame finish options for increased design flexibility.

Building codes clearly define hazardous locations where impact safety glass is required. Glass with this designation has been tested to meet impact safety requirements required for areas such as doors, sidelights, and areas close to the floor.

FireLite IGU is a fire-rated insulated glass ceramic unit that also complies with energy codes. It is designed for use in exterior applications where energy codes require an insulated product, or for interior applications with special needs such as sound reduction.

Withstands continuous temperatures to 1292° F for use in high efficiency heating appliances.

The ability of glass ceramic to withstand sudden heating, cooling, or both without cracking, shattering or exploding out of the frame.

The ability of the glass to stop various types of ammunition. Ratings are assigned in levels from 1 to 8, with a Level 8 rating being the highest (able to stop a 7.62mm rifle lead core full metal copper jacket, military ball).

The capacity of an element in a building structure to support a weight in addition to its own.

Listed and labeled by Intertek, an independent assurance, testing, inspection and certification organization.

Glazing designed to increase the amount of time required to gain entry. This additional time is intended to allow for the enactment of lock-down protocols and to allow for the arrival of emergency response teams. May be used in areas with high risk of prolonged attack or in critical areas such as vestibules. Forced entry resistant glazing should also resist penetration from hand-held or hand-thrown objects such as hammers, crowbars, bats, knives, bricks and rocks. (Source: NGA Glass Technical Paper FB71-21)

This product is both fire- and security-rated and is appropriate for educational facilities.

This product is smoke-rated and tested to UL 1784.

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