Foam ABC

Raw materials and foam types

Bio-Based Foam and Insulation

  • What is the difference between bio-based foam and common foam types? To save the environment, reusing materials became inevitable, but it is also very important that the new, eco-friendly product has the same performance and features.
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Can the PE foam have different colors?

  • Polyethylene is basically translucent or milky-white in color, but almost any desired color can be achieved by using plastic colorants. Plastic coloring is useful in creating the image of a product, also can help improving usability and quality. Additionally, it…
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Foam Materials: Polyethylene, Polyurethane, Polystyrene

  • What is foam made of? Many different foam types are made from many different materials, based on the product’s density and the process. In this article, we will introduce the most common foam materials: polyethylene, polyurethane, and polystyrene.
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High-density foam vs low-density foam: differences

  • In this article, we point out the differences between the low and high-density foam. These products are both made of LDPE (Low Density PolyEthylene) but they differ in their density [kg/m3] and thus, the use of these materials is not…
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Polyethylene (PE)

  • Its chemical formula is (C2H4)n, i.e. this is a carbon- and hydrogen-based material. Polyethylene foam is a closed cell solid material and is foamed with gas. Each gas phase is separated by a layer, which yield the cells. Closed cell…
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Which are the features of the PE foam if compared to the EVA foam?

  • In this article, we compare XPE foam with EVA foam.
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Foam properties

Can the properties of polyethylene material be influenced?

  • Plastics were originally made of a few materials, but this has changed a lot over the years. Today, thousands of types of plastics are produced by adding various natural and synthetic materials.
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Closed cell cross-linked polyethylene (PE) foam

  • A chemical cross-linked foam forms a resistant surface. Cross-linked closed cell polyethylene foam means that during cross-linking, the molecules connect by chemical bonds, forming a structure branched from the straight carbon chain, thus creating a more durable structure. The fineness…
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Foam Density, Weight, Firmness and Usability

  • How to measure foam density? Foam density is measured in kilograms per cubic meter. This unit of measurement is important: foam density defines what is the use of the material.
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The connection between foam color and density

  • There is a strong correlation between the intensity of a color of a foam, and the density of that foam. It is often experienced that the color is paler and lighter for a foam with low density (let’s say 30…
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Which are the Bio-Based polyethylene foam features?

  • Environmental sustainability is very important to Trocellen, which is why it created TR-EECell, the Bio-based cross-linked polyethylene (PE) foam. The greatest thing that this kind of PE has the same properties as the conventional version, but it is much more…
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Processing technologies

Advanced Surface Treatment (AST)

  • The chemical modification of the foam surface on the basis of environmentally friendly and safe substances ensures a significant increase in surface tension, which results in excellent long-term stability. Therefore, the AST treatment offers decisive advantages over conventional corona procedures.
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Embossing

  • Embossing is a process where the surface of a single foam sheet or a laminate material is given a 3D texture. For this the surface must be heated to a temperature where it becomes shapeable, than an engraved roll is…
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Heat Lamination

  • Heat lamination is a process for producing multi-layer products (these are called laminates), which allows the properties of the layers to be combined. It can be understood as ‘welding’ the layers to each other.
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How are physically cross-linked foams manufactured?

  • Physically cross-linked polyethylene foam, also named IXPE foam. It has excellent mechanical properties and advanced dimensional stability, which is why it is widely used in various fields.
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Thermopressing

  • During thermopressing the foam is heated on both the top and the bottom side, then pressed from both directions by a cooled two-part mold, and then released. It is possible to make foldable products with it, or to give very…
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What density and thickness can be produced with physically crosslinked polyethylene foams? What is the maximum available material width?

  • The foam manufactured by Trocellen is the physically cross-linked polyethylene foam. This PE foam can be produced with modern technology, has excellent mechanical properties and advanced dimensional stability.
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Use and storage

How to Cut Foam? Tutorial.

  • Different types of foams are available to purchase. Closed-cell and open-cell foams, low-density and high-density foams.
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What must be considered when storing polyethylene foam (PE foam)?

  • When storing PE foam, we need to follow several rules in order to maintain the highest quality of the material as possible.
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