How to identify the quality grade of Polycarbonate sheet?

Polycarbonate sheets, known for their excellent light transmission, remarkable impact resistance, and outstanding weather durability, are gaining immense popularity across various regions. With the entry of numerous manufacturers in recent times, the competition in the Polycarbonate sheet market has intensified. Unfortunately, some producers resort to manufacturing inferior quality polycarbonate sheets to gain a competitive advantage, making it increasingly challenging for buyers to discern the quality of the sheets they are considering.

To assist you in this endeavor, we, at Guangzhou YUEMEI Technology Materials Co., Ltd, a leading Polycarbonate sheet manufacturer with over three decades of experience, present seven inspection methods to help you gauge the quality of Polycarbonate sheets. This guidance is intended to simplify your purchasing decisions.

Here are six key criteria you can use to evaluate Polycarbonate sheet quality:

1. Pricing

When comparing offers from various suppliers, a significant disparity in quotes for the same specifications of Polycarbonate sheets indicates differing quality levels. Generally, the adage holds true: you get what you pay for. While lower prices may seem appealing, they often do not correspond with high-quality products.

2. Light Transmission

A clear Polycarbonate solid sheet crafted from 100% virgin materials can achieve transparency levels exceeding 92%. When inspecting the sheets, they should be free from visible impurities or blemishes, with a consistent and vibrant color. In contrast, sheets made from recycled materials or a blend of virgin and recycled components may exhibit yellowing or a darker hue.

3. Condition of the Protective PE Film

A well-adhered PE protection film on the surface of a Polycarbonate sheet indicates a manufacturer with superior production technology and quality control procedures.

4. Wall Thickness and Density

Some manufacturers produce hollow sheets that have a lower density compared to the standard, allowing for competitive pricing. However, this often results in wall thickness that is below standard or required levels. This can also occur with solid sheets, compromising their actual thickness. By comparing the density and wall thickness, a clear differentiation in quality emerges; generally, greater density and thickness signal superior quality.

5. Flexural Strength

High-quality virgin material is essential for Polycarbonate sheets to maintain their structural integrity during repeated bending without breaking. These sheets exhibit excellent bend resistance—particularly solid sheets. Conversely, low-quality sheets made from recycled materials are often brittle and can break with minimal pressure.

6. Surface Flatness

After removing the PE protective film, examine the surface of the Polycarbonate sheets. A high-quality sheet should have a flat, smooth surface devoid of any dents, scratches, or waviness. If the surface does not meet these criteria, it is likely a low-quality product.

Using these six evaluation criteria will significantly assist you in determining the quality grade of Polycarbonate sheets, allowing you to make informed purchasing decisions.

Established over 30 years ago, Guangzhou YUEMEI Technology Materials Co., Ltd specializes in a range of Polycarbonate sheets, including PC Hollow Sheet. We are committed to delivering high-quality products backed by an impeccable reputation.

If you are keen to learn more, please visit our website.

If you're in search of reliable and durable Polycarbonate solutions, Songmei is ready to assist with professional and transparent service.