PYROSWISS
PYROSWISS is the original clear, fire-resistant glass technology with full safety glass characteristics. This highly tempered safety glass features a special edge treatment designed to withstand high thermal stress. This prevents early breakage due to fire, keeping the affected area sealed. Free from UV-sensitive interlayers or embedded wires, PYROSWISS provides high transparency and light transmission, offering design freedom for interior and exterior applications.
Attributes & Benefits
- Available in single (starting at 6 mm), double (DGU), and laminated glazing
- Clear fire-rated safety glass maintains integrity for 30- or 60-minutes (Classes E30 & E60).
- Available in large dimensions of up to 1500mm x 3000mm (depending on classification and make-up).
- Symmetrical 1(C)1 impact resistance as per EN 12600 for IGU application
- For interior and exterior applications
- Moisture- and pressure-resistant IGU edge sealing for extended durability
- Excellent acoustic insulation properties on-demand
- Many design and comfort options (multifunctionality)
- Vertical and slopped applications
- Safety glass per EN 12150 and can be offered as laminated glass (EN 14449 and EN ISO 12543)
- Lightweight for easy, secure handling and installation
- Portrait and landscape applications tested
- High light transmission values of up to 89%
- Economical, durable, and reliable
Performances
In the event of a fire, PYROSWISS provides an effective barrier against the passage of fire, hot toxic gases, and smoke. PYROSWISS prevents early glass breakage and maintains building compartmentation.
Interior solutions
Product | Fire resistance classification | Thickness | Weight (kg/m2) | Light Transmission to EN 410 | Sound reduction to EN 673 (Rw dB) | Safety according to EN 12600 |
---|---|---|---|---|---|---|
PYROSWISS | up to E60 | 6 mm | 15 | 89% | 32 | 1(C)1 |
PYROSWISS | up to E60 | 8 mm | 20 | 89% | 33 | 1(C)1 |
PYROSWISS | up to E60 | 10 mm | 25 | 88% | 35 | 1(C)1 |
PYROSWISS | up to E60 | 12 mm | 30 | 87% | 36 | 1(C)1 |
PYROSWISS Stadip | up to E60 | 13 mm | 32 | 87% | 38 | 1(B)1 |
*measured or calculated
UL
Product | Fire resistance classification | Nominal Thickness | Weight ( lbs/sq. Ft.) | Light Transmission NFRC 200 | Sound reduction to ASTM E 413/E 1332 (Rw dB) | Safety according to EN 12600 |
---|---|---|---|---|---|---|
PYROSWISS 20 | Protective | 1/4 in | 3.2 | 89% | 32 | 1C1 |
PYROSWISS 45 | Protective | 3/4 in | 3.73 | 84% | 39 | 1C1 |
*measured or calculated
Exterior solutions
Product | Fire resistance classification | Thickness | Weight (kg/m2) | Light Transmission to EN 410 | Sound reduction to EN 673 (Rw dB) | Solar Factor to EN 410 | Safety according to EN 12600 |
---|---|---|---|---|---|---|---|
PYROSWISS Climalit | E30 | 26 mm | 31 | 81% | 30 | 0.76 | 1(C)1/1(C)1 |
*measured or calculated
Performance table info
* These are only examples of possible make-ups. According to dimensions & weight, these values will change. Please contact us for precise values.
** The values shown are without tolerances.
Data provided in this table is for a standard solution and will vary according to selected configurations and options. All of our solutions can be customised based on our extensive variety of options able to meet virtually any project requirement.
For more information, please contact us.
Customisation
All characteristics described above are examples. All of our products and systems can be customised to your specific needs. Vetrotech provides design-assist support to meet or exceed your requirements and design goals.
Together, let’s make your projects shine!

Applications
PYROSWISS can be used in both interior and exterior areas. PYROSWISS Stadip can be used for fire protection and compartmentalization in lift landing doors.
A dedicated project assessment would be needed to determine the right solution for your specific project requirements. For more information, please contact us.
Fire testing Video
Curious about how PYROSWISS glass reacts during a fire? Watch this video of its fire test.

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Related Classification
Class EI
Class EI (Insulation) fire-rated glass is the highest performance classification and blocks the transfer of heat while stopping flames, smoke, hot and toxic gases.
Class EW
Class EW (Integrity & Radiation) fire-rated glass limits the transmission of radiant heat, reduces the risk of fire spread, and creates safer separation distances.
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