Foams are used in many different areas. But what are foams anyway and how can you process this material correctly? Also plays The compression hardness and hardness of hardness in the foam are an important role. We want to familiarize you a little closer to the material and show you how diverse foams can be. Of course, we would also like to show you how easy the different foams can be processed with the right tools. Because in the past there were often difficulties in dealing with these materials.
What is foam anyway?
There are different foams on the market. Starting with the very well -known styrofoam to foams, which can be found in many mattresses and upholstery. It is about for foams around foamed plastics. The material used encloses cavities, the so -called pores. These can be completely or only partially enclosed. Among other things, it depends on whether foams can absorb liquids. If the pores are completely closed, the foams do not absorb liquids. By foaming, foams have a very large surface with a very low density in a direct comparison. Many plastics can be foamed with the different methods. Therefore, foams are usually defined more precisely with other license plates in order to determine the basic substance. PU foams and EPS foams are particularly well known. The EPS foams are made of polystyrene and PU foams made of polyurethanes.
What is foam from?
The composition of the various foams differs, among other things, by the areas of application. There are three different methods with which foams can be produced. On the one hand, the physical foaming, in which the starting material is foamed by purely physical processes. In the chemical foaming, on the other hand, a brew is added, which usually leads to foaming the material by supplying heat. In mechanical foams, air is inserted into the foaming material. This foam is then determined when networking or solidifying. Foams are usually plastics with different strength and different physical properties.
What does the compression hardness mean in foam?
Plays with foam, The compression hardness is an important role. It is a standardized test procedure. The necessary force is given by the compact hardness, which must be spent in order to put together 40 percent of the original thickness. The necessary press stamps are always larger than the piece of foam to achieve an even pressing. The value is given in Kilopascal (KPA). The lower the value of the foam diving hardness the material is, the softer.
The Foam hardness should not be confused with the impression hardness. When checking the impression hardness, a weight that is smaller than the sample material is used for testing. So while you can simply drop on a thick mattress with a low foam diving hardness, it looks different with a very high compensation hardness in the case of an equally thick mattress.
What is the degree of hardness in foams?
A real foam hardener cannot be specified directly. For example, other materials and factors play a role in mattresses to define the hardness. Here is that Spatial weight much more crucial, because this decides both the hardness and the nature and quality of foams. Many manufacturers therefore not only indicate the degree of hardness of the material, but also the compression hardness and the space weight. So you can rate the material better due to these two factors.
What does space for foams mean?
That Spatial weight in foams is also referred to as the raw density. The weight of the foams is to be specified with this value. Therefore, the space weight is given in kg/m³. The consideration of the room is of crucial importance. Since air is enclosed in foams within the material, the pure weight cannot be specified. Weight only plays an important role in relation to the space volume. In the case of mattresses, for example, the space -weight visible how much material has been used and how high quality and durable such a mattress is. Because the more space weight per area, the more durable the product.
What is the difference between EPS foam and Eva foam?
It is an important Difference between EPS and Eva foams. The EPS foams are expanded polystyrene, which is generally known to be known as the "Styrofoam" brand name. The term EVA is an abbreviation for ethylene vinyl acetate and describes a special production method of foams. These are Especially enormously resilient and durable, And hardly decompose even under unfavorable circumstances. There are also many other foams because most plastics can be foamed. But this assignment is not always useful and effective. Therefore, the EPS and EVA foams are one of the best-known solutions on the market.
How can I cut foam?
Cut the foam safe and above all precisely to cut down the degree of hardness and the foam hardy hardness. It is therefore important to sit down on the best possible tools in order to carry out the cuts as accurately as possible. With our Mr Beam You can laser cutter Not only cut foam in every compression hardness, but even engrave the foam in every degree of hardness. This creates high -quality, unique pieces, which you can add and process at will. The desired data and simply dimensions in our Mr Beam Laser cutter and the work on the different foams can begin. Above all, since you can cut enormously with the laser cutter for craft projects or similar work, and thus optimally adapt the foam to the desired shapes and sizes.
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