If the gas pockets become liquid and frozen, they develop into foam. They can be closed-cell or open-cell and are typically soft to the touch. EPE and PU are foams used extensively in the production of bedding cushions, sheets, cushions for furniture, sofas and packaging

PU foam vs EPE foam
The primary distinction between PU foam and EPE foam is that PU is used primarily as a mattress made of huge blocks. However, EPE foam is mainly used in packaging because of its shock-proofing characteristic. Both are light-weighted; however, they are utilized for various purposes due to the distinctive features they have in common. PU foam is believed to be among the most popular kinds of mattress foam. Some denote PU foam as polyfoam. It is typically more bouncy and springy than other mattress foam. It can come with various types of exterior appearances based on the material it is made from. EPE foam is a term used to describe Expanded Polyethylene composed of polyethene. EPE foam is a semi-rigid, closed-cell foam capable of absorbing vibration and shock waves. EPE foam is utilized in gym equipment, packaging mats, etc. The material used to make EPE foam is referred to in the industry as expanded pellets.

What is PU foam?
Polyurethane foam, or PU, has many applications, but it is the most popular use for the foam is to make a mattress. While it's not as good as latex mattresses, PU mattresses are popular with people because they are less costly and more durable. Besides beds, PU foam can also be employed for pillows, sofa cushions and mattress toppers. The substance used to create foam PU is believed as Petrochemicals. Petrochemicals originate from the process of reacting diisocyanates and polyols that are extracted from crude oil. Other essential chemicals responsible for creating PU foams are the complex alcohol, petroleum byproducts, diisocyanate, polyol and so on. PU foam is typically utilized as the top layer of mattresses. An individual can use just one piece of PU foam for an alternative bed. It isn't expensive and is of the highest quality. In recent years mattress retailers have substituted spring coils using PU foam because it has a low density and can be compressed quickly. The PU foam is one of the best ways of reducing costs for shipping since it is exceptionally light. However, its lightweight can also be the reason for the limited life span of the products made from PUR foam.

What is EPE foam?
EPE foam is one of the typical types of plastic foam made into various things for household use. The EPE is considered a thermoplastic material that melts at high temperatures. It can be formed into different shapes, such as sheets, tubes, foam or sheets. Thus, it is called plastic, which is free of smell or odour. EPE foam is highly flexible and light. Because of this reason, it's extensively used in packaging. Because it provides more excellent protection to fragile and delicate objects by monitoring the impact of shocks. EPE foam also is resistant to heat. EPE foam is recyclable very quickly through melting. EPE foam is water-proof and oil resistant, which makes it an excellent insulation material. The density and weight of EPE foam will vary based on several variables. EPE foam is available in pure white; therefore, it can be moulded into any colour by mixing dyes or colours. The colours are added to the EPE foam in the process of melting. The techniques employed to make EPE foam are cutting, laminating, forming, and trimming. Since it's recycled, EPE foam is considered eco-friendly.

Main Differences Between PU Foam and EPE Foam
1. PU foam is typically purchased in huge blocks, which means it's costlier than EPE. In contrast, EPE foam is bought in smaller blocks, so it doesn't require much money. 2. When someone wants to measure the weight of two foams, PU foam wins the race because it is heavier. However, EPE foam is lighter than PU foam. 3. Due to its shape, PU foam is typically utilized to create mattresses. In contrast, EPE foam is used to generate sofa cushions. 4. In terms of colours, PU foam offers an array of colours to provide its users. In contrast, EPE foam is available in white colour, and it's only available in white. 5. PU foam is also referred to as Polyurethane due to its manufacturing process. However, EPE foam is also called Polyethylene.