Casting-Grade Acrylic
Process: This grade acrylic is produced by pouring liquid monomers (mma) into molds, polymerization, and curing. It is commonly used for thick or specialized
sheets.
Characteristics: It has a high molecular weight, excellent optical clarity, and weather resistance. It also offers high hardness and dimensional stability. Due to the
slower production process, it has lower internal stress and is less prone to warping.
Applications: Suitable for applications requiring high optical quality, such as signage, lamp covers, exhibition displays, and high-end display stands.
Extrusion-Grade Acrylic
Process: Produced by heating and melting PMMA pellets, then extruding the material into sheets.
Characteristics: It has a lower molecular weight, high toughness, and is easy to thermoform and process. It is produced quickly and at a lower cost. However, its
weather and impact resistance are slightly lower than the casting grade due to the lower molecular weight.
Applications: Widely used in applications that require larger quantities and cost efficiency, such as indoor decoration, lampshades, and signage.
Molding-Grade Acrylic
Process: Typically produced through injection molding, where PMMA pellets are molded into various shapes.
Characteristics: Suitable for manufacturing complex shapes with high efficiency and precision, providing good dimensional stability. Its molecular weight falls
between casting-grade and extrusion-grade.
Applications: Commonly used for complex industrial parts, daily-use items, transparent casings, and electronic accessories.
In summary, casting-grade is ideal for applications requiring high transparency and weather resistance, extrusion-grade is more economical and easy to process,
while molding-grade is suited for producing complex shapes. Choosing the appropriate acrylic type for different applications can ensure optimal performance and
cost efficiency.
