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Traditional · Double-tooth interlock

Multicell.

Premium multiwall with double-tooth interlocking.

Multicell — Double-tooth interlock
FIG. 01 · InstalledDouble-tooth interlock
01 · About

Multicell is not a generic polycarbonate sheet. It is a modular daylighting system — engineered for leak-proof performance over large spans, in Indian climate conditions, over decades.

Coxwell Multicell panel
02 · Benefits

Why engineers specify Multicell.

Leak-proof by design, not by sealant

The double-tooth interlocking profile creates a mechanical joint — not a sealant joint. No wet seals to degrade in UV or thermal cycling. The leak-proof performance is structural, not maintenance-dependent.

6–30 mm across every project type

Three-cell (6–12 mm) for residential and light commercial. Five-cell (14–30 mm) for institutional, airport, and large civic projects where thermal performance and structural span matter. One product family, 11 thickness options.

Long-term outdoor weathering performance

45–50 micron UV co-extrusion on the exposed layer, 15 microns on the underside. Not coated — extruded into the panel surface.

03 · Specifications

Technical data.

Thickness (3-cell, 4-wall)6 / 8 / 10 / 12 mm
Thickness (5-cell, 6-wall)14 / 16 / 18 / 20 / 22 / 25 / 30 mm
Width900 mm
LengthUp to 11.8 m
U-Value (6–12 mm)2.1–2.4 W/m²K
U-Value (14 mm)1.7 W/m²K
U-Value (16–18 mm)1.9 W/m²K
U-Value (20–30 mm)1.6 W/m²K
Standing seam15–20 mm height
UV protection45–50 microns (top), 15 microns (underside)
Fire documentationOn request
Warranty10 years against manufacturing defects, subject to standard terms
04 · Options

Finish & configuration.

Colours: Clear · Opal · Ice · Solar Ice · Bronze · Blue · Grey · Antiglare Opal · and more. Specify at order.

Antiglare/Softlite

Matte bottom layer — reduces glare, eye strain

Infrared

IR-blocking top layer — blocks heat, passes light

Continuous Cleat fixing

Grip-lock, high wind uplift ≥ 7 kN

Aluminium Spacer fixing

Double-wall aluminium + PC U-connectors

06 · Reference project

In the field.

Sarai Kale Khan Metro Interchange, Delhi — 5,239 m² of 14 mm clear Multicell in vault and eye-shape profiles. Delivering diffuse natural light across one of Delhi's busiest transit hubs. Completed 2025.
08 · Specify

Specify Multicell

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