PU Foam Block Types and Applications Explained

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Close-up view of textured soundproof foam in black and white, showcasing its detailed pattern.
Credit: pexels.com, Close-up view of textured soundproof foam in black and white, showcasing its detailed pattern.

PU foam blocks are incredibly versatile and come in a variety of types, each with its own unique characteristics and applications. They can be used for insulation, packaging, and even as a building material.

One of the most common types of PU foam blocks is the rigid foam block, which is made from a mixture of polyol and isocyanate. It's known for its high compressive strength and is often used in construction projects.

PU foam blocks are also available in a flexible form, which is more commonly used for packaging and insulation. This type of foam is known for its ability to conform to irregular shapes and provide excellent thermal insulation.

The size and shape of PU foam blocks can vary depending on the intended application, but they're often cut to size to fit specific needs.

Types of PU Foam Block

There are several types of PU foam blocks, each with its own unique characteristics and uses.

Brown Wooden Box on a Striped Foam Mattress
Credit: pexels.com, Brown Wooden Box on a Striped Foam Mattress

High-density PU foam blocks, for example, are incredibly durable and can withstand heavy loads, making them perfect for construction and industrial applications.

Low-density PU foam blocks, on the other hand, are lightweight and easy to cut, making them ideal for crafting and DIY projects.

Flexible PU foam blocks are highly versatile and can be molded into various shapes, allowing for creative freedom in design and installation.

Open-cell PU foam blocks provide excellent insulation and are often used in building and construction projects to reduce heat transfer and energy loss.

Closed-cell PU foam blocks, also known as rigid PU foam blocks, are incredibly resistant to water and moisture, making them perfect for use in areas with high humidity or water exposure.

Foam Panels & Pre-Cuts

Foam panels and pre-cuts are versatile and can be used in various applications. They can be produced in densities from 30 to 300 kg/m³ and up to 5 m long on a continuous slabstock line.

Smiling man lying among colorful foam blocks indoors. Fun and playful scene.
Credit: pexels.com, Smiling man lying among colorful foam blocks indoors. Fun and playful scene.

Whether you need blocks for vehicle construction or customized structures, polyurethane rigid construction foams are a high-performance insulating material. They can withstand extreme temperatures, from -196° C to +200° C.

Foam panels can be supplied as blanks or processed by CNC machines. This flexibility makes them suitable for a wide range of industries and applications.

Here are some examples of foam panels and pre-cuts with their corresponding properties:

These properties make foam panels and pre-cuts ideal for various applications, including insulation, model-making, and customized structures.

Foam Types

Polyether foams (PUR) are a type of foam that comes in various densities, ranging from 16 to 75 kg/m³.

The compression load of PUR foams varies from 1.5 kPa to 19 kPa, depending on the specific type.

Some PUR foams are designed for high-temperature applications, with tensile strengths reaching up to 400 kPa.

Here are some common PUR foam types:

These are just a few examples of the many types of PUR foams available. Each type has its own unique characteristics and applications.

Polyether Foams Portfolio

Credit: youtube.com, Global Polyether Polyols for Flexible Foams Market Research Report 2021

Polyether foams, also known as PUR foams, are a type of foam that offers a wide range of properties and applications. They can be produced in various densities, from 16 to 75 kg/m³.

These foams have a high compressive load, with some products reaching up to 9.5 kPa. For example, the B 7595 product has a compressive load of 9.5 kPa.

The tensile strength of polyether foams varies between products, with some having a tensile strength of up to 400 kPa, like the AF 2512 product.

The elongation at break of polyether foams also varies, with some products having an elongation at break of up to 200%, like the THE 2519 product.

Here's a list of some polyether foam products with their corresponding properties:

These are just a few examples of the many polyether foam products available. Each product has its own unique properties and applications, making them suitable for a wide range of industries and uses.

PF40 Low Density Polyurethane Foam

Credit: youtube.com, Understanding Foam Types: Density, Firmness, and Best Uses

PF40 is a type of low-density polyurethane foam that's suitable for a variety of applications. It's available in a range of densities, from 20 to 75 kg/m³.

This foam is known for its excellent compressive strength, with some products reaching up to 5.5 kPa. It also has a high tensile strength, with values exceeding 250 kPa in some cases.

One of the key benefits of PF40 is its ability to withstand high temperatures. Some products can handle temperatures up to +200°C, making them ideal for applications such as insulation of superheated steam lines.

Here are some specific product details for PF40:

These products showcase the versatility and performance of PF40 low-density polyurethane foam. Whether you're looking for insulation, cushioning, or other applications, PF40 is definitely worth considering.

Advantages

The pu foam block has some amazing advantages that make it a popular choice for various applications. It can withstand temperatures from -80° C to +120° C, depending on the type of foam.

Credit: youtube.com, Top 7 Benefits Of Polyurethane Foam Concrete Raising

One of the key benefits is its short-term temperature resistance, which can reach up to +250° C, depending on the type of foam. This is crucial for applications that require high heat tolerance.

The pu foam block has a water absorption rate of approximately 3% by volume, according to DIN EN 12087. This is relatively low, making it a good insulator.

Its coefficient of vapor diffusion resistance is between 40-200, which is a measure of how well it prevents moisture from passing through. This is important for maintaining a dry and stable environment.

The pu foam block is also known for its stability, with a tolerance of thicknesses of ±0.7 mm, even when unpolished. This makes it suitable for applications where precise dimensions are required.

Here are some of the pu foam block's key properties:

  • Water absorption acc. to DIN EN 12087: approx. 3% by volume
  • Coefficient of vapor diffusion resistance: 40-200
  • Tolerance of thicknesses (unpolished): ±0.7 mm

In addition to its physical properties, the pu foam block is also environmentally friendly. It is harmless from a biological and building ecology point of view, non-rotting, recyclable, and resistant to mold and mildew.

Frequently Asked Questions

Is a PU foam mattress good?

A PU foam mattress can be a good option, but its durability and lifespan depend on its quality and maintenance. While it may last 2-5 years with proper care, it's essential to weigh the pros and cons before making a decision

Kristin Waelchi

Senior Writer

Kristin Waelchi is a skilled writer with a keen eye for detail and a passion for storytelling. With a background in research and analysis, she brings a unique perspective to her writing, delving deep into complex topics and shedding light on the intricacies of the world around us. Kristin's expertise lies in crafting engaging articles that inform and educate readers on a wide range of subjects, including industrial facilities.

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