Multiple types of foams are generally used for making shoes. Here the review will be on the foam types that are used for making the out and upper soles of the shoes. Foam is generally divided into two foam types. The open and closed-cell foam. When you choose the foam for the boots, the focus has to be on the foam’s compression set, density, readability, and resistance.
Open-cell foam or polyurethane foam is generally soft and is made up of polyurethane plastic. This type of foam is referred to as CFF or CF. It is available in a variety of densities, thicknesses, and colors. Most often, this foam type is used for making the collars and the tongues of the shoe. Thin foam sheets are used to make the fabric in the shoe’s upper section. PU foam is used because it allows the stitches to sink in while providing extra support to the shoe and reducing wrinkles quickly. If you want to purchase PU foam for your needs, check out PU foam Malaysia.
Closed-cell foams or ethyl vinyl acetate [EVA] foams are much denser than the open cell foam types. They do not allow the internal gas of the foam to escape. The density in this kind of foam is determined by the hardness, stretchability of the plastic, and the size of the cells. This type of foam is most often used to prepare the shoes’ midsole. The most common style of closed-cell foams includes EVA, PU, PE, SBR, Neoprene, and Latex. The EVA foam is primarily responsible for backing the mesh materials weird neoprene, and SBR foam is used when elasticity is needed. The latex is most commonly used for lining the collar. Since pe foam is non-durable, it is used in a limited manner. Check out EVA foam Malaysia to purchase EVA foam.
Reticulated foam is the most widely used foam style in shoes. This is primarily used to provide ventilation to the shoe. Reticulated foams almost look like skeletons. They allow water and air to flow freely. Memory foam is a type of polyurethane foam that contains additional chemicals that is responsible for increasing the density and viscosity of the foam. In the case of memory foam, the return rate is prolonged. Memory foam should not be used in the case of cold weather boots since they can freeze into solid blocks.
The most common midsole material in the case of sports shoes is EVA foam. EVA is exceptionally lightweight, easy to form, compression, and durable. It can also be die-cut, injected, cold-pressed, hot-pressed, or machined to prepare the inserts or midsoles. Since EVA is available in various formulations and densities, it can be flexible and soft or stiff and rock hard.
PU foams are primarily used for building durable materials in case hiking boots. Many high heels fashion shoes outsoles are also made of high-density PU. Very soft PU material is used for creating footbeds since they are resistant to compression.