Why is core materials gaining in popularity across various end-user industries?

Posted by coherent market insights on April 20th, 2021

Core materials, often called core compounds, provide the backbone of many modern building products, from roofs to superstructures. Some of these materials deliver superior fire retardant, thermal performance, dimensional stability, and sound insulation. The most popular closed-cell foams used in core materials include polyurethane (or PU), a product with multiple benefits. Core materials are the fundamental building blocks of modern aircraft, spacecraft, space vehicles, automobiles, robots, trucks, industrial equipment, and a host of other applications. They are generally made from high-quality lightweight alloys of aluminum, tin, steel, magnesium, or even titanium. They are used both in aerospace and commercial applications for their strength, stiffness, and lightweight properties.

One of the best-performing core materials available is medium to low density (30-60 pounds per cubic feet) closed-cell foam. These are actually some of the more affordable polymer composites that are used extensively in modern-day buildings: PVC (or polyvinyl chloride) and polyisocyanurate are two examples. Closed-cell foams, in which cells are manufactured in the same factory as the rest of a construction's product, have been used for decades in everything from roofing shingles and tires to marine engines and aircraft surfaces. This material's wide range of applications ensures that it can be adapted to almost any construction use.

Another well-known and versatile core material is thermoplastic polyurethane or PTU. Thermoplastic is a composite material that delivers high tensile strength and dimensional stability, as well as excellent resistance to moisture. Thermoplastic, used in roofing membranes as well as a wide range of other applications, can be used as framing layers, flooring materials, liner and sealant applications, and even as reinforcement in reinforced concrete.

Commercial uses are growing, but unlike military applications, commercial projects tend to focus on lightweight, flexible designs that can be used in a wide variety of end-use industries. This means that although core materials are primarily selected for use in commercial projects, they also play an important role in the aerospace and defense industry as well.

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