Common Myths about Polycarbonate Plastics – Debunked

At a Glance:

• Many myths about polycarbonate create confusion and lead to poor purchasing decisions.
• Special-grade polycarbonate resists UV light, withstands impacts, and is very durable for outdoor and industrial purposes.
• You can bend, shape, and customise it, with different grades suited for specific uses.
• Certain polycarbonate grades are BPA-free and recyclable through specific programs, making them safe and sustainable options.

When it comes to polycarbonate plastics, there’s a lot of information available, but not all of it is reliable or technically accurate. Over the years, several myths have emerged, causing confusion among buyers and even industry professionals. These misconceptions can make it hard to understand polycarbonate’s properties and applications.

The problem with these polycarbonate myths is that they often lead to poor buying decisions. A business might ignore polycarbonate because they think it won’t last outdoors, or they might select the wrong type of material for an important project. In the long run, this can result in wasted money, safety concerns, or missed chances to use a material that’s actually right for the job.

In this article, we’ll clear up the confusion and debunk the most common myths about polycarbonate plastics. By separating fact from fiction, you’ll gain a clear understanding of polycarbonate’s true strengths and uses. This way, you can make an informed decision that benefits your projects and peace of mind.

Myth 1 – Polycarbonate Yellows and Cracks Quickly in Sunlight

The Myth:

Some think that polycarbonate can’t handle outdoor exposure. They believe it will yellow, warp, or crack after a short time in direct sunlight.

 The Truth:

• Uncoated polycarbonate can yellow over time under UV exposure, but UV-stabilised or coated grades resist damage from sunlight and remain clear for many years.
• Protective coatings shield them, keeping both clarity and strength intact.
• They are widely used in greenhouse roofing and skylights, which shows their reliability outdoors.  
• With proper care, polycarbonate can last for many years without showing wear.  

Myth 2 – Polycarbonate is Fragile Like Glass

The Myth:

Because it’s clear like glass, many assume polycarbonate is just as fragile and easily broken.

The Truth:

• Polycarbonate is one of the most impact-resistant plastics, which means it’s way stronger than glass.

• It’s used in equipment, such as helmets, safety visors and shields, where toughness is crucial. 
• The automotive and construction industries also use polycarbonate for protection and durability. 
• It will not shatter or break like glass under stress. 

Myth 3 – Polycarbonate Cannot Be Bent or Shaped

The Myth:

Some think polycarbonate is too stiff to bend or form into custom shapes. 

The Truth:

• Polycarbonate can also be cold-bent, allowing it to curve without cracking.
• It can also be thermoformed for complex shapes and detailed design variations. 
• The flexibility of polycarbonate enables its use in both artistic and industrial applications. 
• Some common applications would be custom enclosures, curved panels and machine guards. 

Note: When cold-bending, it should be done within the manufacturer’s recommended radius and along the sheet grain to avoid stress cracking.

Myth 4 – All Polycarbonate is the Same

The Myth:

Buyers often think that every polycarbonate product has the same performance.

The Truth:

• There are various polycarbonate grades, each designed for specific purposes.
• Some grades are made for high heat, while others focus on optical clarity.
• Thickness and formulation influence durability and performance.
• There are also PC blends such as PC-ABS or PC-PBT, tailored for automotive or electrical uses.
• Choosing the correct grade ensures safety, efficiency, and cost savings.

Myth 5 – Polycarbonate is Unsafe or Leaches Toxins

The Myth:

Concerns surrounding BPA (bisphenol A) and similar chemicals have raised doubts about the safety of polycarbonate.

The Truth:

• BPA-free and food-grade polycarbonate grades are now widely available. 
• When sourced from reputable manufacturers, these materials meet FDA and EU safety standards and are safe for healthcare and food-contact use.
• They are safely used in industries like healthcare and food processing.
• Sourcing from a trusted engineering plastics partner guarantees product safety. 

Myth 6 – Polycarbonate Cannot Be Recycled

The Myth:

Some believe polycarbonate is a “throwaway” plastic with no recycling options. 

The Truth:

• Polycarbonate can be recycled mechanically or chemically, though post-consumer collection rates are still limited.
• When recovered, recycled PC can be repurposed for other industrial or blended applications. 
• Its long lifespan reduces the need for frequent replacements.
• Because polycarbonate products last longer, they create less waste compared to single-use plastics.

Polycarbonate plastics are strong, versatile, and widely used in various applications. However, myths and misinformation can make them seem less reliable than they actually are. By separating facts from false assumptions, you can better understand their true capabilities and choose the right type for your specific needs.

Making informed decisions saves money and ensures safety, performance, and long-term value in your projects. When you know the truth, you can choose materials with confidence and avoid costly mistakes.

Connect with a trusted engineering plastics supplier to explore high-quality polycarbonate sheets and other durable materials for your next project.