Perforated gypsum acoustical board with eight quadrants of 12 mm hexagonal perforations (15% perforated area), backed by an acoustical fleece. All four edges are tapered (4TE Technology) for a seamless flush finish. Supplied unpainted and can be painted to any colour. Reaction to fire is Class 1 as per BS 476.

Key features

• High sound absorption
• Seamless flush finish
• Immense design possibilities
• Suitable for green buildings
• All four edges tapered (4TE Technology)
• Backed with acoustical fleece

Applications

• Acoustic ceilings in halls and corridors (Gyptone range)
• Used in projects such as NIIT, ILBS and NTPC (consultant testimonial)

Specifications

Nominal Size: 1200 x 2400 x 12.5 mm | Weight: 8.0 kg/m2 | Edge Detail: All edges tapered (4TE Technology) | Perforation Size & Type: 6 mm radius hexagonal (12 mm hexagonal, eight quadrants) | Perforation Area: 15% | Reaction to Fire: Class 1 as per BS 476 | Backing: Acoustical fleece (acoustic tissue on reverse) | Surface: Unpainted - can be painted to any colour | Glass Wool Density: 24 kg/m3 (as used in test) | Sound Absorption Coefficient (αs) - Sixto 63 + 50 mm Glass Wool (125/250/500/1000/2000/4000 Hz): 0.48/0.77/0.94/0.78/0.62/0.58 | NRC - Sixto 63 + 50 mm Glass Wool: 0.80 | Sound Absorption Coefficient (αs) - Sixto 63 + 50 mm Glass Wool + 300 mm air gap (125/250/500/1000/2000/4000 Hz): 0.68/0.75/0.62/0.68/0.74/0.70 | NRC - Sixto 63 + 50 mm Glass Wool + 300 mm air gap: 0.70 | Sound Absorption Coefficient (αs) - Sixto 63 + 50 mm air gap (125/250/500/1000/2000/4000 Hz): 0.06/0.28/0.69/0.68/0.65/0.48 | NRC - Sixto 63 + 50 mm air gap: 0.60 | Sound Absorption Coefficient (αs) - Sixto 63 + 300 mm air gap (125/250/500/1000/2000/4000 Hz): 0.52/0.68/0.58/0.54/0.58/0.54 | NRC - Sixto 63 + 300 mm air gap: 0.60

Standards: Reaction to Fire Class 1 as per BS 476 | GRIHA Product Catalogue listing (GRIHA V.3 criterion 29 & GRIHA V.2015 criterion 11; certificate valid 27 March 2018 - 26 March 2020) - listed as Gyptone BIG Boards