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快乐飞艇开奖结果助手

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快乐飞艇怎么玩的

  • High Performance Acoustic Insulation Foam Panels
  • Increased Absorptive Surface Area
  • Fiber Free
  • Light Weight

快乐飞艇平台


快乐飞艇开奖软件

Material

Open Cell Melamine Acoustical Insulation Foam

Pattern

Pyramid for Monolithic Appearance

Features

Increased Surface Area, High Performance, Light Weight, Dramatic Unusual Effect

Applications

Hang Pyramid Foam Panels in Industrial, Commercial, Audio, OEM, Residential, Ceilings, Walls, Partitions, Sound/Recording Studios, Radio Stations, Band Rooms, Swimming Pools, Churches, Schools, Gun Ranges, Mechanical Rooms, Enclosures, etc.

Thickness

2″, 3″, 4″ and custom

Sizes

2′×2′, 2 ′×4′, and custom

Colors

Blue, Beige, Brown, Charcoal, Hunter Green and Burgundy – Painted with Sherwin Williams 1,500+ colors

Flammability

ASTM E84, Class 2. Flame Spread: 75; Smoke Developed: 340 (Painted F/S: 420, S/D: 300)

Installation

ASI S.T.O.P Noise Acoustical Adhesive

Reverberation Demonstration

FOAM S.T.O.P. Pyramid Foam Panels – Sound Absorption/Noise Reduction
per ASTM C423-90a
125Hz 250Hz 500Hz 1KHz 2KHz 4KHz NRC
2″ 0.05 0.19 0.66 0.90 1.01 1.08 0.70
3″ 0.12 0.37 1.90 1.05 1.12 1.16 0.85
4″ 0.24 0.50 1.06 1.15 1.21 1.19 1.00

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