PU Polyester Foam

Widely applicable in industrial, acoustic, and technical applications

What is Polyester Foam?

Polyester foam is a technically advanced polyurethane foam with a dense, homogeneous cell structure. This type of foam excels in applications where chemical resistance, sound absorption, and filtration are essential. Thanks to these properties, polyester foam is widely used in industrial, acoustic, and technical applications.

Properties of Polyester Foam

Polyester foam distinguishes itself from polyether foam by its closed, fine cell structure, making it more resistant to greases, oils, and solvents. As a result, polyester foam is ideal for use in technical environments and machinery where oils and vapors are present.

Key properties include:

Chemically resistant: Withstands exposure to greases, oils, and vapors
Homogeneous cell structure: Delivers consistent performance in filtration and damping
Sound-absorbing: Excellent acoustic performance
Laminable: Easily combined with materials like foil and coatings
Flame-retardant: Available in fire-retardant grades

In addition, polyester foam is available with precisely adjustable cell sizes, expressed in PPI (pores per inch), which is essential for filtration applications.

Advantages of Polyester Foam

One of the greatest advantages of polyester foam is its durability under harsh conditions. It retains its structure and performance even when exposed to chemicals or high temperatures. Due to its fine cell distribution, polyester foam is also highly suitable for absorbing noise and vibrations, contributing to the quiet and efficient operation of machines and installations. Moreover, polyester foam is ideal for further processing, such as reticulation (opening the cells) to create high-grade filter foam, making it even more versatile.

Applications of Polyester Foam

What’s the difference between PU foams like polyester and PE foam?

PU foams such as polyether and polyester are made from polyurethane and are generally softer, more flexible, and more breathable than PE (polyethylene) foams. PE foam, on the other hand, is more rigid, has a more closed structure, and is especially suitable for shock absorption, thermal insulation, and packaging materials.

PU foams like polyester can better conform to shapes, offer more comfort for seating and lying applications, and perform better in sound absorption. PE foams are more chemically resistant, water-repellent, and mechanically strong, but far less suitable for applications where ventilation or flexibility is required.

Structure & Flexibility of Polyester Foam

Polyester foam has a fine, uniform cell structure, making it ideal not only for sound absorption but also for precise filtration. This structure ensures consistent performance across the entire surface. Furthermore, polyester foam is flexible enough to withstand mechanical stresses without permanent deformation.

The structure of polyester foam can be accurately controlled during production, allowing for filter foams to be manufactured with specific air or fluid permeability. Its flexibility also enables polyester foam to be laminated or combined with other materials to meet specific technical requirements.

Looking for custom-made polyester foam?

IFG Industrial Foams delivers tailor-made PU-Polyester foam solutions. Depending on your application, we can cut, laminate, or coat the foam as needed. The cell size can also be adjusted to match the desired air or liquid permeability. Thanks to our advanced production methods, we guarantee consistent quality and dimensionally stable solutions tailored to your needs.

Collaboration

Interested in working together? Visit our co-makership page and explore the possibilities.

Get in touch

Do you have any questions? Contact us today and discover the possibilities.