Acrylic Sheets
Introduction
Plexi, commonly referring to Plexiglass or acrylic glass, is a transparent thermoplastic material made from polymethyl methacrylate (PMMA), prized for its exceptional clarity, lightweight nature, and shatter resistance as a versatile alternative to traditional glass.[1] Invented in the early 20th century through research on acrylic acid polymerization, it was first commercialized in 1933 by the German company Röhm & Haas under the brand name PLEXIGLAS®, marking a breakthrough in synthetic plastics for safety and optical applications.[1] During World War II, Plexi played a critical role in military aviation, forming canopies, windows, and turrets for aircraft due to its durability and transparency under extreme conditions.[2]
Key properties of Plexi include high impact resistance—approximately ten times that of glass—along with innate UV stability, weatherability, and dimensional stability, allowing it to maintain clarity and form without yellowing or warping over time.[2] It fractures into dull edges rather than sharp shards when broken, enhancing safety in high-risk uses, and is available in various forms such as sheets, rods, tubes, and molded components, with thicknesses ranging from 0.06 to 4 inches.[2] Chemically resistant and lightweight (about half the weight of glass), Plexi is easily fabricated through cutting, drilling, or thermoforming, making it suitable for both industrial and consumer applications.[2]
The material's versatility has led to widespread adoption across industries, from protective barriers and bulletproof glazing in security contexts to aquariums, signage, skylights, and even fiber optic components in telecommunications.[2] Post-war innovations expanded its civilian uses to architectural elements like the Munich Olympic Stadium roof in 1972, furniture, illuminated displays, and medical devices, underscoring its role in modern design and engineering.[1] Today, produced by companies like Evonik and under generic names like acrylic, Plexi remains a cost-effective, eco-friendly option in manufacturing, with ongoing developments in sustainable production methods.[1]
History
Formation and early years (1993–1995)
Plexi formed in Los Angeles in 1993, when vocalist and bassist Michael Angelos, a former USC film student and member of the 1970s children's rock band Carriage, met guitarist Michael Barragan in a West Hollywood bar and drummer Norm Block at a Taoist retreat.[3][4] The trio quickly moved in together and began writing music, drawing initial inspiration from the post-grunge indie scene while developing a distinctive sound blending glam, punk, and psychedelia.[3] Angelos, who had briefly pursued filmmaking before returning to music, drove the band's formation with ambitions of rock stardom.[4]