Pyrostop Transparent Walls

Multi-laminated glass panels that block flames, smoke, and radiant heat. Floor-to-ceiling fire walls with full transparency — 60 to 120 minute ratings.

Maximum Protection

Invisible Fire Walls

Pyrostop represents the highest classification of transparent fire protection. Unlike ceramic glass (which is protective), Pyrostop is fire-resistive glass: it blocks not only flames and smoke, but also the radiant heat that can ignite materials on the other side and impede safe evacuation.

Manufactured by Pilkington (NSG group), Pyrostop uses intumescent layers between glass sheets that expand when heated, forming an opaque, rigid barrier that blocks heat transmission. Under normal conditions, the glass is completely transparent.

Pyrostop is required where code demands a fire barrier with 60+ minute rating — typically exit corridors, occupancy separation walls, and floor-to-ceiling barriers.

How It Works

Normal State

The glass is completely transparent. Intumescent layers are invisible. Light transmission comparable to standard glass.

↓ Fuego / Fire ↓

During a Fire

Intumescent layers expand forming an opaque, rigid barrier. Radiant heat is blocked. People on the unexposed side are protected from heat and can evacuate safely.

Specifications

Pyrostop Performance

CharacteristicSpecification
Protection typeFire-resistive — blocks radiant heat
Available ratings60 minutes, 90 minutes, 120 minutes
ApplicationsFire walls, barriers, exit corridors
FormatsLarge format panels, floor to ceiling
TransparencyFully transparent under normal conditions
StandardsUL, ASTM E119, NFPA 251/257
ManufacturerPilkington (NSG Group) / TGP

Does Your Project Need
Fire Walls?

Specify Pyrostop for applications requiring maximum fire protection with full transparency. We'll help with technical specification.

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