Guilford of Maine FR701 Fabric
Our Guilford of Maine FR701 Acoustic Fabric is an acoustically transparent fabric that can be used as a speaker grille cloth or to wrap an acoustical substrate. The FR701 series…
Guilford of Maine Whisper Fabric
Our Guilford of Maine Whisper Fabric combines a mixture of of muted and saturated tone options for this acoustical panel fabric line. Choose from colors like Ambience, Baffle, Mellow and…
Rotofast Snap On Anchor (50 Pack)
The Rotofast Snap On Anchor is an easy to use, two-part fastener system designed for use with most rigid fiberglass core acoustical panels. Whether you are a contractor or just installing…
Guilford of Maine Studio 54 Fabric
Our Guilford of Maine Studio 54 Acoustic Fabric is used to wrap an acoustical substrate or other absorptive material. The Studio 54 series is a flashback from the days of…
Offset Impaler
Our offset impaler increases the sound absorption response of an acoustic panel simply and quickly by introducing a 2" air space. The Impaler features a U-shaped design that elevates the…
Impaling Clip
An Impaling Clip is designed to allow for quick and easy installations of our products. The Impaling Clips are a couple inches long with extruding metal stems. The clips get…
Loctite® Power Grab Adhesive
Loctite® Power Grab Adhesive is a non-toxic water-based adhesive that makes installation quick and easy by providing a strong permanent bond when applying acoustic panels and ceiling tiles to walls…
Guilford of Maine Anchorage Fabric
Our Guilford of Maine Anchorage Acoustic Fabric is a fabric used to wrap an acoustical substrate or other absorptive material. The Anchorage series offers a tight crepe weave of vibrant,…
Black Theater Board
Johns Manville Whispertone® Wallboard
$19.64–$210.00
Johns Manville Whispertone® Wallboard is a raw acoustical fiberglass board we use as a sound absorbing core for our fabric wrapped acoustical panels. We can manufacture panels for you using many of the Guilford of Maine fabrics listed on our website. Just let us know which fabric you want and how many panels you require. Should you wish to build your own panels, you may also purchase this acoustical board, any of our panel fabrics and mounting hardware.
Manufactured from fine, rotary-process, boorsilicate glass fibers bonded with a special thermosetting resin, Whispertone® produces a structurally rigid board-type insulation. The top surface is smooth and uniform in color. The high tensile fibers resist settling, breakdown or sagging from vibration. The countless air spaces in Whispertone® Wallboard create effective sound absorption as well as thermal properties. Perceived noise from air movement and mechanical equipment is noticeably reduced. It is a widely used due to its excellent thermal and acoustical properties.
Technical Information for Whispertone® Wallboard:
- Size: Up to 4′ x 10′
- Thickness: 1″ & 2″ (Standard)
- Density: 6 pound per cubic foot acoustical fiberglass substrate
- Finish: Scrim Face
- Intended Use: Sound absorbing core for constructing acoustic panels
- Fire Rating:
- Class 1 or A per ASTM E84
- Meets UL 723 and CAN/ULC S102-M88
- Meets NFPA 90A and 90B
- Tolerance: +/- 1/8″
- Edge Detail: Options for Square, Bevel, or Mitered Edge
- Edge Construction: Natural or Chemically Hardened (Hardened edges provide additional edge protection and a crisper edge appearance.)
- NRC: 1″ (0.75) 2″ (1.00)
| Sound Absorption (Hz)* | |||||||
| Thickness | 125 | 250 | 500 | 1000 | 2000 | 4000 | NRC |
| 1″ | 0.04 | 0.22 | 0.72 | 0.97 | 1.08 | 1.07 | 0.75 |
| 2″ | 0.21 | 0.78 | 1.04 | 1.07 | 1.06 | 1.04 | 1.00 |
*Test results provided are for raw boards only with no mounting provisions. Mounting Hardware on finished acoustical panels create a slight air gap, which increases absorption.