Types of Acrylic Plastic
Extruded acrylic is a type of acrylic plastic produced by a continuous process where the raw material is melted and formed into a sheet. In this process, the raw material is melted and forced through a die to form a continuous sheet. The sheet is then cooled and cut to size.
By the eay, ectruded acrylic is the least expensive type of acrylic and is often used for lower quality applications. It has lower optical clarity compared to cast acrylic and may have visible flow lines and surface defects. Despite these limitations, extruded acrylic is still a versatile material with good strength, durability, and resistance to weathering and impact.
Cast acrylic, also known as cast polymethyl methacrylate (PMMA), is a type of acrylic plastic produced by pouring the raw material into a mold and allowing it to cool and cure. The mold is carefully designed to ensure an even distribution of the material and to prevent the formation of air bubbles.
Moreover, cast acrylic has a higher quality and clarity compared to extruded acrylic, and it is often used for applications that require high optical clarity and surface quality, such as windows, lenses, and displays.
what’s more, cast acrylic has good resistance to impact, weathering, and chemicals, and it has a smooth surface finish that can be easily polished.
Additionally, cast acrylic has excellent dimensional stability and can be easily fabricated into a variety of shapes and sizes.
Cell-cast acrylic is a type of cast acrylic that is made using a special mold that produces a cell structure within the material. This cell structure gives cell-cast acrylic improved strength and stiffness compared to standard cast acrylic. It also makes the material more resistant to impact and better suited for applications where the material is subject to stress.
The production process for cell-cast acrylic is similar to standard cast acrylic, but the special mold allows for the formation of the cell structure during the curing process. This results in a material with improved properties and a higher quality compared to extruded acrylic.
Cell-cast acrylic is often used for high-end applications, such as skylights, displays, and other applications that require high optical clarity and strength.
Impact-modified acrylic is a type of acrylic plastic that is made by adding a small amount of an impact modifier to the raw material before it is processed. The impact modifier helps to improve the material’s resistance to impact and to make it more flexible. This results in a material that is more resistant to breakage and more suitable for applications where the material is subject to stress.
The production process for impact-modified acrylic is similar to standard cast acrylic or extruded acrylic, but with the addition of the impact modifier. Impact-modified acrylic is often used for applications that require a high level of impact resistance, such as signs, displays, and protective covers.
Additionally, it is also used in applications that require a combination of good optical clarity and impact resistance, such as skylights and windows.