{"product_id":"sonex-pyramid-acoustic-foam-thickness-3","title":"Pyramid Acoustic Foam U391","description":"Sonex Pyramid Acoustic Foam offers an angled panel design with significantly greater surface area than flat surfaces therefore maximizing the effective area for acoustical control. When installed the pattern provides a continuous, seamless appearance. As a Class 1 fire-rated foam that is 100% fiber-free, Sonex Pyramid Acoustical Foam meets regulations for virtually any environment where maximum noise control is required. Features: Reduces echo and reverberation Improves speech intelligibility Exceptional acoustical performance Mold-resistant, fire-retardant Technical Information for Sonex Pyramid Foam: Size: 2′ x 2′ Thickness: 2′′, 3′′, 4′′ Part Numbers: OPYR-2, OPYR-3, OPYR-4, OPYR-2HW, OPYR-3HW, OPYR-4HW Material: Open-cell melamine-based foam Finish: Natural Grey, Natural White, HPC Coated Density: 0.5 to 0.7 lbs.\/cu. ft. (ASTM D3574-77) Fire Rating: Class 1 per ASTM E84 Microbial Growth: Passes UL 181, section 11 Fungus Resistance Rating: #0 per ASTM G21 NRC: 2′′ (0.70) 3′′ (0.80), 4′′ (0.95) Sound Absorption (Hz) ASTM C423-90a Thickness 125 250 500 1000 2000 4000 NRC Natural Grey and Natural White 2′′ 0.07 0.25 0.60 0.94 0.97 1.08 0.70 3′′ 0.09 0.37 0.81 1.01 1.03 1.07 0.80 4′′ 0.18 0.44 0.96 1.14 1.18 1.19 0.95 HPC Coated Colors 2′′ 0.13 0.41 1.02 1.18 1.13 1.13 0.95 3′′ 0.13 0.85 1.25 1.22 1.13 1.14 1.10 Installation Method: These panels mount easily to any wall or ceiling surface with acouSTIC water-based adhesive. For best results, install this product at the end of your construction project. Use clean gloves to prevent soiling material. Melamine foam is fragile, please handle with care. Do not install material of unacceptable quality.","brand":"My Store","offers":[{"title":"Default Title","offer_id":49186550710426,"sku":"P353532479472277360","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/2748\/3546\/files\/5af105700c0f215c9e501f6d0afc5157170faaf93785388513c5340f0004f0a7.jpg?v=1788768322","url":"https:\/\/hjsheufhsef.shop\/products\/sonex-pyramid-acoustic-foam-thickness-3","provider":"My Store","version":"1.0","type":"link"}