Acrylic plastic has several notable drawbacks that users should consider before selecting it for projects, displays, or consumer products. One of its primary disadvantages is its low surface hardness, which makes it prone to scratching, scuffing, and marring much more easily than traditional glass. Additionally, acrylic is sensitive to certain organic solvents, such as acetone and strong paint thinners, which can cause the material to craze, crack, or dissolve upon contact. It is also susceptible to thermal distortion under high heat and can discolor or yellow over extended exposure to direct ultraviolet sunlight, reducing its long-term optical clarity.
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