Classic Max has a pin hole visual with high sound absorption of 0.70 NRC and superior humidity resistance (RH99). A special wax back coating effectively prevents condensate water penetrating into the board, preventing sag and stains. It is offered in Board, Tegular and Bevelled Tegular edges in 600x600 and 600x1200 mm sizes, 17 mm thick.

Key features

• Humidity resistance up to 99% RH
• Cleanability: with dry cloth
• Light reflectance 85%
• Pin hole visual with high sound absorption: 0.70 NRC
• Superior humidity resistance: RH99
• Special wax back coating prevents condensate water penetrating into the board, preventing sag and stains

Applications

• Offices / Call Centre
• Healthcare
• Education
• Conference Rooms
• Auditoriums
• Corridors / Lobbies
• Libraries

Specifications

Reaction to Fire (as printed): Cls0/Cls1 | Sound Absorption (NRC): 0.7 | Sound Attenuation (CAC): 30 | Light Reflectance: 85% | Recycled Content: up to 69% | Humidity Resistance (max RH): 99% RH | Cleanability: with dry cloth | Relative Price Index (brand symbol scale, Min/Mid/Max): Mid | Sound Absorption by One-Third Octave Band (alpha p): 125 Hz: 0.53, 160 Hz: 0.53, 200 Hz: 0.52, 250 Hz: 0.49, 315 Hz: 0.52, 400 Hz: 0.57, 500 Hz: 0.62, 630 Hz: 0.74, 800 Hz: 0.81, 1000 Hz: 0.85, 1250 Hz: 0.84, 1600 Hz: 0.85, 2000 Hz: 0.83, 2500 Hz: 0.80, 3150 Hz: 0.77, 4000 Hz: 0.73 | Sound Attenuation Dncw by One-Third Octave Band (dB): 125 Hz: 20, 160 Hz: 23, 200 Hz: 20, 250 Hz: 22, 315 Hz: 20, 400 Hz: 23, 500 Hz: 24, 630 Hz: 27, 800 Hz: 28, 1000 Hz: 30, 1250 Hz: 33, 1600 Hz: 37, 2000 Hz: 42, 2500 Hz: 46, 3150 Hz: 52, 4000 Hz: 55 | 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: 17 mm | Noise Reduction Coefficient (NRC): 0.70 | Sound Absorption Coefficient (125 / 250 / 500 / 1000 / 2000 / 4000 Hz): 0.53 / 0.49 / 0.62 / 0.85 / 0.83 / 0.73 | Ceiling Attenuation Class (CAC): 30 dB | Fire Reaction: Class 0/Class 1 as per BS 476 part 6&7; Class A as per ASTM E-84 | Thermal Conductivity (lambda): 0.052 - 0.057 W/mK | Humidity Resistance: RH 99% | Weight: 3.91 kg/m2 | Back Coating: Special wax back coating to prevent condensate water penetrating into the board, preventing sag and stains | Edge Details and Compatible Suspension: Board: Prelude 24 mm; Tegular: Prelude 24 mm; Bevelled Tegular: Suprafine 15 mm / Silhouette | Available Sizes: 600 x 600 x 17 mm; 600 x 1200 x 17 mm

Standards: BS 476 Part 6 & 7 - Class 0 / Class 1 | EN ISO 717-1 (Dncw) | EN 20140-9 / ISO 140-9 (sound attenuation) | EN ISO 354 (sound absorption) | ASTM C423 (NRC) | GreenPro (brand states Armstrong mineral fibre ceilings are GreenPro classified - brochure-level statement, p16) | BS 476 Pt 6&7 (Class 0/Class 1) | ASTM E-84 (Class A)

Warranty: Conditional: warranty offered only when ceiling tiles are installed with Armstrong steel angles and installation is carried out as per Armstrong Ceiling Solutions recommendations (warranty period not legible in extracted text)