Self-adhesive foams for industry

1. What are technical foams used for?

Foams protect the products from environmental influences or corrosion, so that liquids, noises and temperatures, for example, can be included or excluded with the aid of the appropriate foams. The targeted use of foams often prevents reworking of the workpiece or surfaces.

Some foams are also resistant to alkalis, acids, bacteria and moulds.

2. Which foams are used?

PU foam

Depending on the degree of cross-linking, polyurethane foam is used as soft or hard foam. It is characterised by its high elasticity and open-pored carrier foam and can be adhesive on one or both sides. PU foam therefore offers ideal conditions for soft storage. In addition, it is used for heat and cold storage and serves as rattle, noise and dust protection.

PE foam

Polyethylene foam is also called cellular polyethylene and is a closed-cell material. It has high resistance to weathering, acids and alkalis, can insulate heat and also has good mechanical properties. Thus PE foam is used for sealing and protection.

EPDM foam

Ethylene-propylene-diene rubber is a closed cell elastomer manufactured in different strengths and sizes. It is air- and waterproof and also has good resistance to fats, acids and alkalis. EPDM foam is also resistant to temperature and weathering and is particularly characterized by its thermoplastic properties, as it can be deformed depending on the temperature.

3. Product protection with foams

Due to its variety and the specific properties associated with it, foam can be used very well as a protective material. The individually producible forms as well as the self-adhesive function enable the precise application on different substrates.

Thus, foams offer the best possible protection through optimum padding thickness. They are also suitable for both long and short packing and storage times and are particularly easy to handle.

In this way, soft storage of components in unstable environments is possible, and sheet metal parts are also protected from scratches during storage by foam pads.

In addition, foams are also used to absorb noises and noises, as they absorb rattling and creaking noises in attachments in passenger cars.

For transport, foam is used as packaging material due to its low weight and numerous individual design options. For example, it protects corners and edges of furniture parts during transport and storage.

4. Sealing with foams

Even during the manufacturing process, numerous materials can be reliably sealed with foam against liquids, acids and alkalis. In addition, foam is used especially for sealing joints indoors and outdoors, for example for doors and windows.

5. Heat and cold insulation with foams

Different materials are used for cold and heat insulation. Common insulating materials are for example

  •  Foamed plastics such as polyurethane
  •  Foamed elastomers based on rubber or other rubber-like materials

Their properties are thus used to keep certain temperature ranges constant by storing or excluding heat or cold.

Thermal insulation plays an important role, especially in residential and commercial buildings, as it reduces energy consumption and associated costs.

As far as cold insulation is concerned, it is important to keep temperatures as low as possible in order to prevent a reduction in the performance of machines and systems.

The use of foams also plays an important role in storage and operation. Certain technical or chemical processes require exact temperatures that only remain constant by means of cold or heat insulation. In order to prevent the chemical reaction during the storage period, the corresponding products must be kept insulated.

6. Special features of Krückemeyer foams

  • Production of individual geometries and dimensions as die-cut parts with internal punching and "gripping".
  • Self-adhesive and provided with appropriate adhesive for various substrates
  • Single and double-sided adhesive
  • Different foam qualities for individual applications
  • Optional small series production