Acoustic foam - you should know that!
It is important for you to know what makes a good acoustic foam so that you will not be misled by the many offers on the Internet.
Because unfortunately, a lot of practical jokes are driven in this area and we experience it again and again that here often wrong advice is given or in the
product descriptions untrue statements are made. Once assembled, you can not return the foam and you may have to live with the result, even if it would have
been better solved with other materials.
Take five minutes to find out how to differentiate between a good and a bad acoustic foam, or where to choose a cheaper foam over a more expensive acoustic foam.
And you'll also learn how foams help improve the sound or how you can effectively insulate walls.
What is an "acoustic foam"?
The word "acoustic foam" is in the strict sense an invention of the industry - because a foam pad or a mattress has an acoustic effect, due to the open-pore nature of the foam.
With these types of foam, which are designed as upholstery, but you can solve acoustic problems not targeted, i. you do not know what the result will look like in the end.
There are no measurement tables with frequencies or the like and also no experience, with which one can exchange in forums,
because you will hardly find anyone who moved a mattress in the recording studio on the walls. Acoustic foams are foams specially designed for the acoustic sector,
with different surface finishes, plate thicknesses, weights, pores, colors and profile ground conditions. Depending on the acoustic problem case,
proven foams are used or are recommended, with which one can solve the problem purposefully.
There are two basic acoustic applications: Hall reduction within rooms or sound insulation or noise insulation between rooms, ie the prevention of sound passing
through solid surfaces, e.g. in a soundproof apartment or a soundproof waiting room or office (and also in the technical field in the insulation of machinery,
compressors, etc.). This is referred to as sound attenuation (within a room) and sound insulation (between two rooms, for example).
Click on Difference of sound attenuation and sound insulation for exact details.
Which acoustic foam do I need for my problem?
If you want to reduce the reverb in your room:
... you need e.g. Puff foams or pyramid foams (with these profiled foams, however, they only reduce higher frequencies) or even better flat absorbers without profiling,
which absorb sound over all frequencies and also act in the low frequency range. Pimples and pyramids are therefore often found in recording studios or music rooms,
if you only want to eliminate certain frequencies. Plane absorbers, on the other hand, are best used in areas where you want to absorb as much as possible.
in the office, restaurant, waiting room, bowling alley, kindergarten, schools, universities etc.
Absorbers will always absorb significantly more in comparable plate thickness than equally strong dimpled or pyramid foams.
It is also important to pay attention to the fire protection of the acoustic foams, which you must or want to meet on site. We carry different products with
different fire protection levels. Our Basotect acoustic foam here has e.g. the highest standard and may i.d.R. be used everywhere (in case of doubt, always check on-site).
All of these products can be found above.
It is a misconception that you need profiled surfaces to dampen noise. The plate thickness is crucial and not the surface area of the individual plates, as many claim.
This is clearly proven by measurements. Many confuse the surface of a panel with the overall surface of a room in m²! Of course,
the total surface area has an important influence on the overall absorption. The more misplaced, the less reverb you have.
In addition to these classic profiled or non-profiled plates, there are still specialists such. Bass absorbers or broadband absorbers that absorb
especially in the low-frequency range. And of course you do not necessarily have to take rectangular plates to reduce the reverb - you can also use circles,
ovals, stars or other shapes. Only the panel thickness and the number of total absorbing surface on the ceiling in m² are decisive. Furthermore,
we also carry acoustic images or ceiling panels and partitions, for the office area. In our online consultant you will find many standard problems with
our recommendation of products, number, plate thicknesses etc ..
If you want to effectively dampen noise ....
Then you will not get far with bubble foam or pyramid foam. Also in the field of insulation falsely pyramid foam or nub foam is recommended again, although they can work, but in comparison to more suitable materials have a downright ridiculous effect. To insulate properly - whether a room wall, a machine or engine - you need plane absorber with high weight. Because only mass and plate thickness will effectively prevent the sound waves from propagating or penetrating walls.
This area is covered by e.g. our products in the category sound insulation. Here you will find massive acoustic foams, such as our very popular composite foam in various thicknesses as well as other supporting materials such as bitumen foil or bitumen board, which additionally dampen the noise or deceive metal surfaces. Details can be found there if you need effective insulation. And we produced our in-house wall insulation kit, which effectively insulates walls later (for example to the neighbor).
How do I recognize the quality of a foam?
Not only on the product description, but also in the case of reputable suppliers. Sounds strange, but it is. All traders boil only with water and the basic ingredients e.g. with PU foam nunmal are the same worldwide. You can cheaply produce and foam the puff foam or pyramid foam of the same name or you can use high-quality foam with higher-quality foam or you can thin the bottom of profiled foams and cut the pyramids and nubs very high - saves material, but then significantly reduces the effect.
The problem is - in both cases it means in sales then "bubble foam" or "pyramid foam", etc. You can assume that absolute low prices that are far away from the average price, even with almost 100% guarantee, are bad foams that will not be of much use to you acoustically - or a trader sells or closes and lowers the prices and you have if necessary a real opportunity. Unfortunately, there is the other case: some traders charge for a bad or mediocre foam an exorbitant price - this can e.g. be due to the storage costs, which the dealer has or because he is not specialized or no large volume converts and next to foam still flowers and postcards sold or foam as a marginal product and few sales at a high price are sufficient.
For this reason we usually offer different qualities for the most common acoustic foams. Our solid Eco quality (cheap but not cheap!), Our very high quality MicroPor quality with very fine pores and very good absorption and also flame retardant equipped and our high-end product of Basotect, which absorbs excellent, is flame retardant and does not yellow.
Foam storage - the expert in "acoustic foams"
If our selection "kills" you best use our large online consultant - many topics are already described very accurately and appropriate acoustic foam recommended. You can then order these directly online from us. We not only have the largest selection, but also low prices and fast delivery from stock - almost all materials that you can find in our shop are also available in larger quantities. Note the delivery status display for the articles. Order your acoustic foam with just a few clicks directly from us. And as with all materials in our shop, we manufacture our foams completely in Germany - from the foaming of the acoustic foams to the final cut - this guarantees a high quality, long life, best absorption and an environmentally friendly manufacturing process. Quality "Made in Germany".
More information about our acoustic foams can be found in our foam blog - Topic: Acoustic foam and our complete foam program can be found on the start page.
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