Pro Sound Foam Class A Fire Retardant Acoustic Foam

Prior to the release of our Class A pro sound foam products, we offered Class B fire rated acoustic foam. Essentially this meant that the acoustical foam would burn slowly when a fire source was applied to the acoustic foam. Once the fire source was removed the sound foam would self extinguish.

 

With the proSoundFoam Class A fire rating: restaurants, schools, churches, dance halls, night clubs and other public buildings can now use our low cost acoustic foam treatments. Previous to this rating such establishments could not use products with a Class B or lower rating. Acoustic treatment options for such organizations were melamine based foam or fiberglass acoustic panels covered with the appropriately rated fabrics.

 

Melamine based acoustic foams do perform but are costly and due to the nature of the foams chemistry: degrade over time, are brittle and do not last as long as proSoundFoam Class A fire rated acoustic treatments. Fiberglass acoustic panels perform very well but are expensive compared to proSoundFoam Class A Fire rated acoustic panels.

 

In addition to offering all of our sound foam products with a strong fire rating there are a few added benefits, improved performance, low odor and high resiliency.

 

Below are the specifications of proSoundFoam acoustic foam products:

 

proSoundFoam Acousctic Foam Specifications:

proSoundfoam Acoustic Foam Physical Properties

UL94 HF 1,2: This test is typically conducted on foamed plastics used in devices and appliances. This includes acoustical foams, sealing foams, and filter media. A set of 5 specimens, each measuring 150mm x 50mm, is prepared and subjected to a 38mm flame in accordance with the prescribed test procedures. After the flame is removed from the specimen, afterflame and afterglow times are measured. If flaming particles or drops fall from the specimen to a piece of surgical cotton placed below it, it is noted whether or not the cotton ignites. Also, the length of damaged material for each specimen is measured. The material is classified into categories based upon these characteristics as follows:

Criteria Conditions	94 HF –1	94 HF –2
Afterflame time	4/5 is ≤ 2s 1/5 is ≤ 10s	4/5 is ≤ 2s 1/5 is ≤ 10s
Afterglow time for each individual specimen	≤ 30s	≤ 30s
Cotton indicator ignited by flaming particles or drops	No	Yes
Damaged Length for each individual specimen	<60mm	<60mm
Notes: 4/5- four out of a set of 5 specimens 1/5- is one out of a set of 5 specimens	S=seconds

Motor Vehicle Safety Standard 302:The standard decides the burning rate of materials in the occupant compartments of motor vehicles. Requirements of burning rates are found in FMVSS 302. This test, as written, involves burning two or more samples of a 356mm x 102mm x thickness (13mm maximum) plaque or section of material and measuring the burn rate in millimeters per minute (mm/min). Ignition is at one end of the sample by exposing it to a Bunsen burner flame for 15 seconds. The burn rate dictates conforming or non-conforming material and a maximum burn rate of 102mm/min is allowed by FMVSS 302, although this criteria may be overridden by an OEM specification or part print detail. The Society of Automotive Engineers (SAE) J369 and the International Standards Organization (ISO) 3795 are technically equivalent methods of test to FMVSS 302, however they both require burning five specimens per material

California Technical Bulletin 117: California Bureau of Home Furnishings test method and requirements for open flame and cigarette resistant materials used in residential upholstered furniture construction. Cal-117 is a small-scale component test. Ignition source is either an open flame gas burner as specified by Federal Test Method Standard No. 191, Method 5903.2 or smoldering cigarettes meeting the cigarette specification of DOC FF4-72.

 

 

For more information on proSoundFoam Acoustical Foam Treatments see our article on Authentic Sound Foam.