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Corner Mounted Profiled Acoustical Foam
A The Corner Mounted Profiled Acoustical Foam shall be the model ProCorner™
as manufactured by RPG® Diffusor Systems, Inc., Upper Marlboro, MD 20774.
Tel: 301-249-0044, Fax: 301-249-3912.
B The Corner Mounted Profiled Acoustical Foam shall be fabricated as specified
from either Melaflex™ or Polyflex™.
C The Corner Mounted Profiled Acoustical Foam shall contain a plurality
of rounded arcs to provide a decorative architectural surface topology and integrate
with ProFoam™.
D Absorption Coefficients and Noise Reduction Coefficient for the product
shall be measured by an independent, accredited NVLAP facility according to the
test methods as defined by ASTM C 423 and ASTM E 795. Random incidence Absorption
Coefficients for the product in a Type A mounting shall be as follows:
| 125Hz |
250Hz |
500Hz |
1000Hz |
2000Hz |
4000Hz |
NRC |
| 1.17 |
1.09 |
0.94 |
0.93 |
0.95 |
0.98 |
1.00 |
E The Melaflex™
Corner Mounted Profiled Acoustical Foam is fabricated from non-fibrous, fire resistant,
open cell, lightweight (0.6lb.3) BASF melamine foam. It is in full compliance
with all National Life Safety Codes for Class A interior use. Melaflex™ has
a flame spread of 10 and a smoke development rating of 50 as per ASTM E-84 testing
standards. The Polyflex™ Corner Mounted Profiled Acoustical Foam is fabricated
from a UL94 2lb.3 polyester urethane which should only be used in Class B or C
spaces.
F The Melaflex™ Corner Mounted Profiled Acoustical Foam shall be supplied
in a white, white flec, or gray flec finish as specified. The Polyflex™ Corner
Mounted Profiled Acoustical Foam shall be supplied in a purple, blue, or charcoal
gray finish as specified.
G The overall dimensions shall be 4'(H) x 1' 1-7/16"(W) x 6-5/16"(D). Unit
Weight shall be 3-1/2lbs.