Acoustic foam Tiles and Bass Traps

Acoustic foam is one method of creating a controlled acoustic environment within a room. The qualities that give acoustic foam its sound absorption properties is a combination of 3 factors, the foams density, hardness and air permeability. Do not think that a heavy density acoustic foam will perform better than a lighter density acoustic foam, they perform differently Please look at the sound absorption coefficients on the attached report, where a 25 kilo m3 acoustic grade foam was compared with the same grade of acoustic foam formulated to a 41 kilo m3 heavy density.

We do not claim to be sound engineers or specialists in room treatment techniques. We are a manufacturing company and our staff involved with the development of these products have been supplying sound treatment foam products for specialist companies for over 20 years.

The acoustic foam grade we use is specifically formulated for acoustic applications by one of the UK’s leading specialist foam manufacturers. It has been used for many years as  basic sound absorption foam due to its excellent performance for a wide range of applications. It may be used for acoustic enclosures, studio wall paneling, air handling units (AHU’s), air conducting, cab linings and just about any other application where a controlled acoustic sound level is required.

More details of the acoustic tiles can be seen on this page which details the test results of a set of acoustic foams we had tested testresults.pdf

Acoustic foam sound absorption test results

AFW45 (25 kilo M3 ) acoustic foam wedge tile 45mm thick

PFW45 ( 41 kilo M3 ) acoustic foam wedge tile 45mm thick

AFW100 ( 25 Kilo M3 ) acoustic foam wedge tile 100mm thick

As you can see from the above table, the results show a marginal improvement using a denser foam in the in high frequency range but to the determent of the lower frequency results in the 45mm thick tile.

By using the same 25 kilo acoustic foam but making the wedge tile 100mm thick, not only are the high frequency absorption results much improved but also the low frequency results have improved accordingly. thus proving that the 25 kilo acoustic foam has much more stable sound absorption properties, which can be controlled more accurately by altering the tile thickness to improve low / high frequency issues.

Please always look for the acoustic foams acoustic test results showing the sound absorption coefficients, as often convoluted egg box packaging grade foam can be passed off under the guise of acoustic foam.

All foam products supplied upon leaving our factory conform to the requirements of Schedule 1, part 1, of the Furniture and Furnishings (Fire) (Safety) Regulations, S.I. 1324 of 1988 (amended 1989)(Amd 1993), and are also suitable for applications requiring FMVSS302. The fatigue class is based on BS3379

CNC Profile Cut Open Cell Melamine Treated Grey Acoustic Foam, 25kg / m3 Density Foam which has a controlled permeability and open cell structure that gives optimum acoustic performance for a foam of this density. Hardness 125 to 155 Newton’s, Please note all polyurethane foam will react to UV light and can fade and yellow over time this however will in no way affect the foams sound absorption performance