Selecting a Plastic for Your Injection Molded Part——PMMA

Commonly used materials for injection moulding parts——PMMA (Polymethyl Methacrylate /Acrylic)

• Benefits:

Have good optical properties, high gloss and scratch resistant. Acrylic also has low shrink and has less sink in geometries with thin and think sections.

• Applications:

light pipes, lenses, light shades, optical fibers, signs.

• Considerations:

Acrylic can be brittle and thus more susceptible to stress cracking. PC is a good alternative, if needed.