Will isopropyl alcohol hurt plastic?

Answered by Randy McIntyre

Isopropyl alcohol, also known as rubbing alcohol, is a commonly used household cleaning agent. Many people believe that it is safe to use on various surfaces, including plastic. However, it is important to note that isopropyl alcohol can actually cause damage to certain types of plastic, such as acrylic.

Acrylic is a type of plastic that is commonly used in items like picture frames, display cases, and even some furniture. It is known for its clarity and durability. However, when exposed to isopropyl alcohol, acrylic can crack, discolor, or even dissolve.

The reason for this is that isopropyl alcohol is a solvent, meaning it has the ability to dissolve other substances. When applied to acrylic, it can weaken the structure of the plastic, leading to cracks or holes. Additionally, isopropyl alcohol can cause the acrylic to become discolored, resulting in a less attractive appearance.

Not only can using rubbing alcohol on plastic result in physical damage, but it can also create a breeding ground for bacteria. When acrylic becomes cracked or has holes, it becomes more porous, allowing bacteria to penetrate and grow. This can be particularly problematic in items like cutting boards or food storage containers, where cleanliness is crucial.

So, it is best to avoid using isopropyl alcohol on acrylic or other types of plastic. Instead, opt for gentle cleaners specifically designed for use on plastic surfaces. These cleaners are formulated to be safe and effective, without causing any damage or discoloration.

While it may seem like a good idea to clean and remove scuff marks on plastic with rubbing alcohol, it can actually lead to damage and discoloration, particularly in acrylic. It is important to choose the appropriate cleaner for your plastic surfaces to ensure their longevity and appearance.