DESCRIPTION
Fabric finishes are either bonded or stretch applied over face of core then bonded to edges and returned and bonded a minimum of 1" (25 mm) onto back side of panel.

LIMITATIONS
There are some radii limitations for 3-dimensional pre-curved panels due to physical properties of core and the selected fabric. Consult Decoustics for specific data.

DESIGN CONSIDERATIONS
DIMENSIONAL STABILITY (ASTM D6207): Based upon Decoustics test data, polyester, modacrylic, olefin, polyolefin, polypropylene, and blends using these fabrics as a base material are the most stable.
Although any choice of fabric should be tested for dimensional stability, fabrics containing nylon, rayon, and silk are less likely to remain stable. An acrylic or latex backing will not stabilize an otherwise dimensionally unstable fabric.

CUSTOM COLORS: Some fabrics can be custom dyed to match Pantone paint chips, based on a minimum yardage order. Depending upon the fabric producer, it could be as little as 120 linear yards (110 linear meters), or as much as 1000 linear yards or meters.

CUSTOM PRINTS/PATTERNS: Decoustics can accommodate requirements such as murals, corporate logos, other specific designs, matched motifs across abutting panels, and similar custom designs.

MICRO-PERFORATED OR POROLATED BACKING: Piercing or micro perforating heavily backed fabrics will not improve acoustic performance. The holes produced tend to recover or close over time. The process of puncturing a fabric was originally developed to reduce mildew and not to enhance acoustics.

MAINTENANCE
Refer to appropriate Decoustics "Cleaning & Maintenance Instructions" for any specific finish.

Note: The information provided in this Data Sheet is accurate to the best of our knowledge at the time of printing. However, we reserve the right to make changes when necessary without further notification. Suggested applications may need to be modified to conform with local building codes and conditions. We cannot accept responsibility for products that are not used, or installed, to our specifications.

Note: Only handle panels wearing clean, lightweight, white gloves during installation. Follow manufacturer's printed instructions for installation as well as field cutting of panels.
RECOMMENDED USES
Can be applied to nearly all Decoustics panel types.
For flat, shaped, and 2- or 3-dimensional pre-curved panels.
A fabric is the only finish that can be applied to a 3-dimensional dome shaped panel.
Consult Decoustics for fabric selection

FEATURES AND ADVANTAGES
Can be nicely tailored and finished at corners.
Marjority of fabrics provide good acoustical transparency when unbacked.
Can be applied to panels with a variety of different edge profiels.
Majority of fabrics have acceptable flame spread properties (ASTM E84).
Specific fabrics, when applied to standard cores & tested as a composite, provide a Class A flame spread (less than 25) when tested in accordance with ASTM E84 criteria.
Can be used for "fold-up" panels while exhibiting seamless corners.
Helps mitigate standard panel tolerances i.e. width and length of +/- 1/16" (1.5 mm).

PROPERTIES TESTING
There are literally thousands of fabrics on the market. Unfortunately not all are suitable. Decoustics test program identifies fabrics for suitability, risks, and application. All fabrics specified, that have not previously been tested, are tested by Decoustics and any limitations are disclosed to enable re-selection by the designer.

Fabrics are tested for:
- Dimensional stability (ASTM D6207)
- Acoustical transparency (airflow)
- Bondability to core
- Adhesive "wet-out"
- Adhesive "bleed-through"
- Adhesive compatibility
- Telegraphing of core irregularities
- Stretchability
- Edge upholstery characteristics (adhesive compatibility and face bulging via
residual memory)
- Color suitability (core show-through resulting in color change or underliner requirement)
Providing a purchase order is issued, there is no charge for fabric testing. One linear yard of specified fabric is required, shipped to Decoustics. Alternatively, consultation with Decoustics prior to fabric selection is recommended.
Decoustics cannot guarantee selected fabrics will remain bubble-free or sag-free if
testing uncovers potential limitations. An alternate fabric is always recommended in these instances.

GLOSSARY
Pull Lines: A recent phenomenon, these are visible as sags or wrinkles on stretch applied (and sometimes at the edges of bond applied) fabrics under specific lighting conditions. The fabric is in fact flat, but appears otherwise because light reflects unevenly from the different tensioned (stretched) fibers. Applied fabrics can only be pulled non-uniformly at the edges and these stretch lines/areas show up as "pull lines". Although there is no conclusive evidence as to the cause, fabrics containing unspun fibers, extruded fibers, and crepe type weaves are all susceptible to this phenomenon.
Acoustical Transparency: The ability of sound to pass through the fabric (and into the panel core). If air passes easily through the fabric it will have good acoustical transparency. This is critical if the specified sound absorption requirements of the panels are to be met. Fabrics with a backing will generally have a reduced acoustical transparency.
Blooming: Fire retardant treatments are sometimes used on fabrics to achieve fire hazard classification ratings. Some saline based products that are exposed to high levels of humidity (greater than 80% RH) will become soluble. When the humidity returns to more normal levels (below 60% RH), the solution is drawn to the fabric surface, evaporates, and leaves a salt deposit in the form of a noticeable white powder known as "blooming". The white powder is difficult to remove and may discolor the fabric.
DECOUSTICS WHITE FABRIC (DWF-200)

DESCRIPTION
Used primarily as a finish for ceiing panels, DWF-200 is a 100% polyester fabric that can be either bonded to, or stretched over, the panel core. Available in larger panel sizes and can be used for panel types with various edge profiles. DWF-200 provides good acoustical trasparency and good dimensional stability (ASTM D6207). DWF-200 is available in 66" (1675 mm) width for use on panels up to 60" (1525 m) wide. DWF-200 acoutical perfomrance is similar to FR-701.

MAINTENANCE
Can be cleaned the same as any polyester fabric, Refer to "DWF-200 Cleaning & Maintenance Instructions" for specific data.

RECOMMENDED USES
Can be applied to nearly all Decoustics panel types. Flat, shaped, and 2- or 3-dimensional pre-curved panels. Panels up to 60" (1525 MM) wide and lengths exceeding 10 FT. (3 M).

FEATURES AND ADVANTAGES
Excellent light reflectance (77%).
Applied to an acoustic panel, it provides a composite flame spread rating of less than 25 (Class A) when tested to ASTM E84.
Can be neatly tailored and finished at corners.
Can be applied to panels with a variety of different edge profiles.
No "fly" quality control problems (other colored threads/fibers in weave).
Can be bonded to panel core without adhesive bleed-through.
Can be stretched over panel core without "pull lines".
Can be used for "fold-up" panels while exhibiting seamless corners.
Helps mitigate standard panel tolerances i.e. width and length of +/- 1/16" (1.5 mm).

A DECOUSTICS STOCK ITEM THAT IS READILY AVAILABLE.
PANEL TYPE THICKNESS FINISH MOUNTING FREQUENCY (Hz) NRC SAA
125 250 500 1000 2000 4000
AP-General Purpose
1" (25 mm) FR-701 Type A 0.03 0.37 .089 1.10 1.09 1.05 0.85 0.87
AP-General Purpose
1" (25 mm) Xorel Type A 0.08 0.37 0.96 0.99 0.59 0.14 0.75 0.72
AP-General Purpose
2" (50 mm) FR-701 Type A
0.23
0.81
1.19
1.19
1.11
1.12
1.05
1.07
AP-General Purpose
2" (50 mm) Tekwall (unbacked) Type A
0.37
0.73
1.14
0.99
0.86
0.83
0.95
0.92
H.I.R.#1-High Impact Resistent
1 1/8"" (29 mm) FR-701 Type A
0.16
0.57
0.94
1.08
1.02
0.95
0.95
0.89
H.I.R.#1-High Impact Resistent
2 1/8"" (54 mm) FR-701 Type A 0.54 0.87 1.03 1.14 0.94 1.00 1.00 0.98
H.I.R.#1-High Impact Resistent
2 1/8"" (54 mm) Tekwall (unbacked) Type A 0.53 0.93 0.89 1.02 0.88 0.88 0.95 0.91
HCC-Lightweight Construction
2" (50 mm) FR-701 Type A 0.20 0.55 0.81 1.12 1.09 1.00 0.90 0.88
AP - Ceiling Application
1" (25 mm) FR-701 Type E400 0.67 0.97 0.76 1.00 1.02 0.98 0.95 0.87
AP - Ceiling Application
2" (50 mm) FR-701 Type E400 0.42 0.77 1.05 1.09 1.09 1.08 1.00 0.97
AP - Encapsulated Panel-Ceiling Application
1" (25 mm) FR-701 (Tedlar/Mylar Encapsulated Type E400 0.42 0.46 0.91 1.03 1.08 0.73 0.85 0.87
HCC-Lightweight Construction
2" (50mm) FR-701 Type E400
0.69
0.75
0.75
0.91
0.93
0.82
0.85
0.84