PYRAN® Star

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At a glance

PYRAN® Star 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 required hose stream test
  • Transparent and wireless
  • Withstands thermal shock
  • Approved for use with any fire-rated frame
  • Conforms to positive pressure test standards
  • 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
  • Approximate visible light transmission: 87 percent
  • Surface finish: Standard with a slight texture
  • Maximum sheet sizes: 43" x 77"
  • Impact rating: None (For applications requiring an impact-rated material SCHOTT offers PYRAN® Star F and PYRAN® Star L products)
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Technical data

  Rating (Minutes) Location Max. exposed area of glazing (m²) Max. width of exposed glazing (mm) Max. height of exposed glazing (mm) Min. depth of glazing channel (mm)
PYRAN® Star (5 mm) Up to 90 Other than doors 3,202 76 76 5/8”
Up to 90 Doors temp rise 100 12 33 5/8”
Up tp 90 Doors non-temp rise 2,736 36 76 5/8”

All fire tests performed in accordance with UL9, UL10B, UL10C, UBC7-2 (1997), UBC7-4 (1997), NFPA252, NFPA257, NFPA80, ASTME2010-01, ASTME2074-00, ULCCAN4-S104 and ULCCAN4-S106.

Note: This product is not considered a barrier to radiant heat and does not meet 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.

Processing & Labeling

PYRAN® Star is available in stock sheets or cut to size. Customers processing these products need to be UL certified with SCHOTT’s endorsement. After cutting, each lite of PYRAN® Star fire-rated glass-ceramic shall be permanently labeled according to code requirements with product and manufacturer‘s name, UL Mark, fire rating, etc.

Storage & Handling

PYRAN® Star 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 with support along the entire length of the bottom edge. In addition, the panels must be separated by an appropriate material, such as acid-free tissue paper or cork pads only in the outer perimeter.

Installation

PYRAN® Star shall only be installed into fire-rated frame and window assemblies carrying the same rating. Each PYRAN® Star 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® Star UL classification. The panel must be placed on calcium silicate setting blocks and glazed using PYRAN® Star 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® Star is a specially developed glass-ceramic that fulfills fire-protection rated glazing 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. For further details please ask for the delivery specification.

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 sharp components of the cleaning equipment to come in contact with the panel surface
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Downloads

Data Sheet - PYRAN® Star
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