description Lucite® Cast Acrylic Block Overview
Lucite cast acrylic block is a thick, solid form of polymethyl methacrylate produced by casting rather than extrusion. The material is transparent, rigid, and machinable, with optical clarity that makes it useful for display components, architectural details, prototypes, sculpture, signage, and embedded decorative objects. Fabricators can cut, drill, mill, sand, and polish it with methods appropriate for acrylic, while accounting for heat buildup, scratching, and the material's lower impact resistance than polycarbonate.
help Lucite® Cast Acrylic Block FAQ
What is the difference between Lucite cast acrylic and extruded acrylic blocks?
Lucite cast acrylic blocks are manufactured by pouring liquid monomer into a mold, resulting in highly transparent, optically superior material. Extruded acrylic is pushed through rollers, making it less suitable for thick optical blocks and more prone to internal stress.
Can I machine Lucite cast acrylic blocks with standard woodworking tools?
Yes, cast acrylic can be machined using standard wood or metalworking equipment like table saws and routers. However, you must use blades designed specifically for plastics to prevent chipping and melting during the cutting process.
Is a Lucite cast acrylic block UV resistant for outdoor architectural use?
High-grade cast acrylic from brands like Lucite offers excellent UV resistance and weatherability. It will not yellow significantly over time, making it highly suitable for long-term outdoor architectural installations.
How do you polish the edges of a cast acrylic block after cutting it?
The edges of a cut cast acrylic block can be polished using various methods, including flame polishing, mechanical buffing, or solvent cementing. Flame polishing uses a specialized torch to melt the edge slightly, resulting in a clear, glass-like finish.
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