Optra acoustical wall systems are easy to install over existing walls or directly to studs with minimal workplace disruption. Standard installation is with impalers (J or Z splines can create an exposed system); panels can alternatively be fixed with construction adhesive/silicone. Fabric colours are shown on p7; dimensions and codes are on the Optra Wall Panels product page (not in this part).

Key features

• Fabric-faced acoustical wall panel
• Installs over existing walls or directly to studs
• Impaler or adhesive fixing
• Cleanability: with dry cloth
• Humidity resistance 90% RH
• Wide range of sizes with custom sizes available
• Superior sound absorption (NRC 0.85)
• Easy to install over existing walls

Applications

• Interior wall acoustic treatment
• Offices, call centres, libraries, conference rooms (per acoustic suggestions p25)
• Atriums/lobby
• Theatres and auditoriums
• Home theatres/sound rooms
• Conference rooms
• Offices
• Commercial spaces

Specifications

Reaction to Fire (as printed): Class A | Sound Absorption (NRC): 0.85 | Humidity Resistance (max RH): 90% RH | Cleanability: with dry cloth | Relative Price Index (brand symbol scale, Min/Mid/Max): Max | Sound Absorption by One-Third Octave Band (alpha p): 125 Hz: 0.18, 160 Hz: 0.51, 200 Hz: 0.55, 250 Hz: 0.61, 315 Hz: 0.77, 400 Hz: 0.82, 500 Hz: 0.94, 630 Hz: 0.93, 800 Hz: 0.87, 1000 Hz: 0.92, 1250 Hz: 0.87, 1600 Hz: 0.80, 2000 Hz: 0.80, 2500 Hz: 0.81, 3150 Hz: 0.74, 4000 Hz: 0.74 | Impaler Location: Flush mount impaler clips approx. 100 mm or more from panel edges | Acoustic Test Basis: Tested in independent third-party quality-assured laboratory per EN ISO 354, EN 20140-9 and ISO 140-9 with ceiling installed over 200 mm and 300 mm cavity; NRC per ASTM C423; Dncw per EN ISO 717-1 (p28) | Thickness: 25 mm | Edge: Square edge | NRC: 0.85 | Sound Absorption Coefficients 125/250/500/1000/2000/4000 Hz: 0.18, 0.61, 0.94, 0.92, 0.80, 0.74 | Humidity: 90% RH | Fire Rating: ASTM E-84: Class A | Fabric Colours: Husk, Sangria, Sesame, Charcoal, Peanut | Optional Colours (on request): Copper, Coffee, Titanium, Flame, Shell

Standards: ASTM E84 - Class A | ASTM C423 (NRC) | EN ISO 354

Warranty: Warranty offered only when installation is carried out as per Armstrong Ceiling Solutions recommendations (duration not stated on these pages)