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300x300 mm Concealed System

False ceiling composed of 300 x 300mm panel's concealed structure. The square panels are made of aluminium (thickness: 0,5/0,6/0,7 mm) or steel (thickness according to request) with smooth surface.

Panels are made of stove enameled aluminium or pre-painted. The surface coating technology has adopted pure polyester powder; the printing plate colour is usually, white RAL 9003 or off white RAL 9010, or as per our colour table or among RAL codes.

The panels can be decorated with different colors or personal drawings on request.

Concealed system has a standard system of size and edge treatment indicated, formed from metal indicated with beads on flanges for snap in engagement with concealed suspension system (Refer to installation drawing).

These ceilings can be supplied both plain and perforated
(Hole DIA: 1,8/2,5/3 /5mm).
Panels can be supplied in different sizes:
300x600 mm, 300x1200 mm, 300x1800 mm

Suspension for 300 x 300mm concealed system:

  • Wire hanger: Galvanized steel wire 2.5mm, 3mm and 4mm diameter.
  • Adjustment clips: 0.6mm spring steel fixed to wire hanger.
  • Coupling clips: 0.6mm galvanized steel, supporting clips for primary channel.Or, Channel connector 38mm width galvanized steel, supporting clips for primary channel.
  • Edge trim: 0.5mm Aluminium stove enameled edging at right angles to the panels 15x30x15mm in 4m length or any one of our latest design.
  • Carrier: Galvanized steel spring tee.
  • Primary channel: 0.6mm galvanized steel support for the system security.
  • Clip: Carrier clips 0.5mm thickness galvanized steel wire. Or, Triangle hanger: Spring tee connector galvanized steel.

Suspension Technical specifications

Rock wool

Rock Wool Backing can be placed on top of the perforated panels to achieve a high coefficient of absorption (refer to perforated system section for different designated shape).

Wire hanger

Zinc coated carbon - steel wire ASTM A641 / A641M, Class 1 zinc coating, Soft temper. Rec­ommended diameter 3mm so its stress at 3 times the hanger design load (ASTM C635, Table 1 Direct Hung) will be less that yield stress of wire.

Adjustment clips

strips are manufactured from carbon steel strip of ASTM SE 1070 and zinc plated to ASTM B 633-98.

Coupling clips

Manufactured from galvanized mild steel strip to ASTM LFQA527.


Main Runner member were tested according to ASTM C 635 - 97 for load-carrying capabilities and didn't exceed the maximum allowable deflection equal 1/360 of its span.


Steel hot-dip galvanized, between Z180 & Z 220
ASTM A366-A366 M

Galvanized :

ASTM A366-A366 M
BS EN 10143: 1993

Fire rating :

Suspension system member are tested for fire performance in compliance with ASTM-E119. Classified "0".

Technical Specifications

Edge detail

Squared or beveled

Black felt

A black felt is applied to the back of every single perforated panel. The black f supplied already fixed to the panel. The black felt has extremely powerful noise absorption f erties, doesn't release noxious fibers into the air and doesn't decompose over time.

Thermal Insulating

Thermal insulation can be achieved with the application of absorbing pads or insulating materials which can be selected on the market for the specific applications.

Fire performance & hygiene

These Metal Ceilings are classified non combustible fire proof class 0, aseptic, hun - proof, bacterium - proof, corrosion - proof, not dangerous for the health. The coating ii subject to any toxicological classification or identification requirements.

Noise Reduction Coefficient (NRC)

Tested as per ASTM E 795 and the result was over 90% for standard white plain tile over 80% for standard white perforated tile.

Light Reflection Coefficient (LR)

The brighter the color, the more light it reflects, standard ceiling finished in white 9003 or RAL 9010 was Tested and the result was over 85% for plain panels and over 75( perforated panels. Measured in accordance with ASTM 1477 - 98.


Metal LX panels with a degree of gloss upto 22%. can be provided opon request.

Ceiling Attenuation Class (CAC)

Tested and proved over 45 %.

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