Fire-rated glass and framing products from Technical Glass Products (TGP)


Fire-rated glass and framing products from Technical Glass Products (TGP)
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Fire-Rated Glass Ceramic

FireLite® is a 3/16" (5 mm) thick glazing material listed for use in non-impact, safety-rated locations such as transoms and borrowed lites. FireLite is available in two different surface conditions for clear viewing, premium grade and standard grade.

20-90 Minutes

Fire-rated Hose Stream Tested Positive Pressure UL Listed and Labeled
ultraHD UL
Post Road Elementary School with FireLite® fire-rated glass ceramic

Docs & Downloads

Fact Sheet (Premium)

Fact Sheet (Standard)

CSI Format Specs

Premium FireLite FAQ

Product Comparison Chart


See the ultraHD difference

  • Now with ultraHD® Technology for improved color, clarity and surface quality
  • Fire-rated for up to 90 minutes with required hose stream test
  • Glass ceramic
  • Clear and wireless
  • Available in two surface conditions for clear viewing, Premium Grade and Standard Grade
  • Also available in an obscure pattern
  • Large sizes available (see "Listings" tab)
  • Withstands thermal shock
  • Passes positive pressure test standards UL 10C
  • May be lightly sandblasted or etched on one side without affecting fire rating

Note: This product is not a barrier to radiant heat. This product does not meet test standards ASTM E-119 or UL 263. If your jurisdiction requires a "barrier to heat" product, please see Pilkington Pyrostop.


Classified and labeled by Underwriters Laboratories, Inc.® and Underwriters Laboratories of Canada. Test report number for labeled fire-rated assemblies is UL File No. R13377. All above tests performed in accordance with UL 9, UL 10C, CSFM 43.7, NFPA 80, NFPA 257, and CAN4 S-104.  Approved for use in New York City: MEA 290-90-M-6.  Approved for use in Los Angeles: LARR 25798.

Rating Assembly Max. Exposed
Area (in2/ft2)
Max. Width
Of Exposed
Glazing (in)
Max. Height
Of Exposed
Glazing (in)
20-60 min. Other than doors 3,325/23.09 95 95
90 min. Other than doors  2,627/18.24 56-1/2 56-1/2

Check with frame manufacturer for maximum tested glass sizes and required stop height.

Note: Individual lite sizes cannot exceed "Max. Exposed Area" shown above.

This information is intended for general reference only. For current listing details, please call Technical Glass Products.

Please note: FireLite is not an impact safety-rated product and should not be specified as such. However, TGP does offer FireLite Plus and FireLite NT which carry both fire and impact safety ratings. Please ask for more details.


All glass designated on the drawings as fire-rated shall be nominal 3/16" (5 mm) thick FireLite supplied by Technical Glass Products. The surface condition shall be either: FireLite Premium Grade (both surfaces are polished to minimize any distortion; industry leader for quality and unmatched by alternative products or production methods); FireLite Standard Grade (may have slight surface waviness or imperfections which may become more apparent in larger sheet sizes; comparable to alternative fire-rated ceramics that are marketed as having a "Premium" finish); or Obscure FireLite (patterned surface).


Before specifying a surface grade of FireLite, you may wish to obtain samples for comparison. Request a sample kit.


Thickness: 3/16" (5 mm) overall
Weight: 2.4 lb/ft2
Approx. Visible Transmission: 88%
Approx. Visible Reflection: 9%
Hardness (Vicker's Scale): 700
Fire Rating: 20 minutes to 90 minutes
Impact Safety Rating: None
STC Rating: 35

Figures are for Premium Grade FireLite. Figures will differ slightly for Standard Grade and Obscure (patterned) surface finishes.

Surface Options

See the ultraHD difference

Because FireLite is made from transparent glass-ceramic, it differs in color from float glass. FireLite appears to have a warmer earth tone when compared to the blue green tint of typical float glass. However, like float glass, FireLite ceramic will not demonstrate a highly perceptible color once installed in a frame. Additionally, FireLite products are manufactured in three distinct surface grades (Premium, Standard and Obscure) that are best reviewed prior to specification. Please contact TGP at 800.426.0279 or to request a sample kit.

Click on the images below for a larger view.

 FireLite Standard Grade:
FireLite Standard Grade polished surface quality is comparable to alternative fire-rated ceramics that are marketed as having a premium finish.

For more information about FireLite surface grades, please see our Premium FireLite FAQ.
 FireLite Premium Grade:
FireLite Premium Grade is the industry leader for quality and is unmatched by alternative products or production methods. Both of its surfaces are ground and polished to provide superior surface quality, improving the overall clarity.

For more information about FireLite surface grades, please see our Premium FireLite FAQ.
 FireLite Obscure Grade:
The glass-ceramic features a patterned surface to allow more privacy.

Framing Options


Designer Series - 20/45/60/90 Minute Fire-Rated Doors & Frames

The Designer Series doors and frames incorporate precise European engineering, providing a sleek, modern alternative to traditional hollow metal frames.

Hardwood Series - 20/45/60 Minute Fire-Rated Doors & Frames

Designed for maximum durability and performance, the Hardwood Series offers an attractive alternative to traditional hollow metal frames. Available with fire ratings from 20 to 60 minutes, this system can incorporate a wide range of fire-rated glazing materials with glass sizes that surpass traditional systems.

Traditional Hollow Metal Steel Frames-Fire-Rated Doors & Frames

TGP glazing can be used in any approved fire-rated door and frame assemblies.

Storage & Handling

FireLite must be handled with care during transportation, storage, inspection and installation. Store in a dry place.

Care & Warranty

To maintain aesthetics, it is important to clean the glass during and after construction. For routine cleaning, use a soft, clean, grit-free cloth and a mild soap, detergent, or nonabrasive window cleaning solution.

Rinse immediately with clean water and remove any excess water from the glass surface with a squeegee. Do not allow any metal or hard parts of the cleaning equipment to contact the glass surface.

Failure to comply with these care and cleaning guidelines may result in loss of warranty.

Download a PDF of our Care & Warranty Brochure.

More about FireLite products.

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