Framed glass partition with an integrated sliding door leaf, photographed against a dark concrete wall
WH-78EI

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Fire-Rated Glass Partitions, UK-Wide (EI30/EI60-Rated)

Full fire resistance, without the visible frame between panes. EI30/EI60-rated, 4mm silicone joints, no limit on overall wall length, installation quoted separately.

WH-78EI is a silicone-joined glazed wall system built to remove the visible vertical profiles that normally separate glass modules in a partition — while preserving full fire resistance. The joint between panes is just 4 mm, filled with firestop intumescent material and non-flammable silicone, available in black, grey, or white to match the fit-out.

Because the wall reads as continuous glass rather than a series of framed panels, spaces fabricated with WH-78EI feel optically larger — while still doing the job a fire-rated partition needs to do: holding a fire zone and keeping evacuation routes viable.

Use cases
Fire-zone separation in office buildings where an uninterrupted glass sightline matters — reception areascorridorsopen-plan floors needing compartmentation without feeling closed-in
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4 MM SILICONE JOINT · EI30 / EI60
Specification
Fire resistance classes: EI30 and EI60
Joint width between modules: 4 mm
Maximum module width: 1.5 m (height up to 3.6 m) or 1.8 m (height up to 3.0 m)
No limit on overall wall length (tested under a "free-edge" model)
Concealed wall mounting
Silicone joint colour options: black, grey, white

Installation quoted separately — see pricing. See current £/m² pricing

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