Fire-Rated Glass-Ceramic



PYRAN® Platinum is a fire-protection rated glazing material made from a transparent glass-ceramic with a thickness of 3/16" (5 mm). It is intended for use in non-impact, safety-rated locations such as transoms and windows with fire-rating requirements up to 90 minutes.


  • Fire-rated up to 90 minutes with the required hose stream test
  • Specially floated glass-ceramic
  • Transparent and wireless
  • Withstands thermal shock
  • Approved for use with any standard fire-rated frame with the same rating
  • Conforms to positive pressure test standards
  • Environmentally-friendly glass-ceramic; produced without hazardous heavy metals arsenic and antimony
  • Cradle to Cradle® Certified Silver by MBDC
    – Meets LEED Innovation in Design requirements
    – Qualifies for Environmentally Preferred Purchasing Program (EPP)
  • Can be used to construct insulated glazing units
  • Can be lightly sandblasted or delivered with surface-applied opacity film
  • Available locally throughout North America

General Characteristics

  • Thickness: 3/16" (5 mm)
  • Weight: 2.5 lbs/ft²
  • Clear; No amber tint
  • Surface finish: Float glass quality
  • Maximum sheet sizes: Approximately 43" x 77"
  • Impact rating: None (For applications requiring an impact-rated material SCHOTT offers PYRAN® Platinum F and PYRAN® Platinum L products)


Max. exposed area of glazing (in²)
Max. width of exposed glazing (in)
Max. height of exposed glazing (in)
Min. depth of groove (in)
Groove Width (in)
Building Code Marking
Up to 90 min
Transom lites, sidelites, windows
3,422 (23.7 ft²)
7/16, 3/8
Classified and labeled by Underwriters Laboratories, Inc. for the United States and Canada with File-No. R22036. All fire tests performed in accordance with UL 9, UL 10C, UBC 7-2 (1997), UBC 7-4 (1997), NFPA 257, NFPA 80, ASTM E2010-01, ASTM E2074-00, and ULC CAN4-S106.p>

Note: This product is not considered a barrier to radiant heat and has not met the ASTM E-119 or UL 263 test standards.

All listing information is subject to change. The current listing can be accessed in the UL directory under file #R22036 or upon request from SCHOTT.

For additional information, contact SCHOTT North America, Inc., 5530 Shepherdsville Road, Louisville, KY 40228 or phone (502) 657-4417.


After cutting, each lite of PYRAN® Platinum fire-rated glass-ceramic shall be permanently labeled according to local building code requirements with product and manufacturer’s name, UL certification mark, fire rating, etc.

Storage & Handling

PYRAN® Platinum fire-rated glass-ceramic should be handled with care during transportation, storage, inspection, and installation. It should be stored in dry conditions only and needs to be stacked upright or at a slight angle. In addition, the panels must be separated by an appropriate material, such as soft pads made of cork and the bottom edge must be supported along its entire length.


PYRAN® Platinum shall only be installed into fire-rated frame and window assemblies carrying the same rating. Each PYRAN® Platinum panel should be inspected carefully before installation, and any pieces with visible edge or surface damage should be sorted out. All glazing components and the stop height must be chosen according to the PYRAN® Platinum UL classification. The panel must be placed on calcium silicate or hardwood setting blocks and glazed using PYRAN® Platinum classified glazing tape, such as closed cell PVC, Fiberfrax tape or Pemko FG3000S90. The installation of the framed unit must comply with the frame supplier's instructions.

PYRAN® Platinum is a specially developed glass-ceramic, that fulfills the fire protection rating requirements. The production process may create certain optical imperfections, such as bubbles or knots. Since these do not generally impair the transparency or the technical performance of the glass-ceramic, they do not represent cause for rejection or replacement.

Maintenance & Care

To maintain the aesthetics, it is important to keep the panel clean. A soft, clean, non-abrasive cloth and a mild soap, detergent, or non-abrasive window cleaning solution is suitable for cleaning. After cleaning, rinse immediately with clean water and remove any excess water from the panel surface. Also, do not allow any metal or hard parts of the cleaning equipment to come in contact with the panel surface.

PYRAN® Platinum Data Sheet PYRAN® Platinum Specifications (in MS Word) - Section 08 81 00 in CSI MasterFormat PYRAN® Platinum Warranties