The polycarbonate sheet market is chaotic with uneven quality. Without mandatory unified standards, products vary greatly in quality and price. Some polycarbonate sheets turn yellow, become brittle and age within only two to three years. How should purchasers select qualified products? A professional manufacturer shares practical identification tips.
- Buy from formal polycarbonate sheet manufacturers.
When selecting suppliers, check the scale, production equipment and corporate strength. Verify company credibility from multiple sources: confirm whether the registered address lies in an industrial zone, check factory buildings via satellite maps, and search for corporate credit records to identify default risks. - Choose polycarbonate sheets with nominal full thickness instead of non-standard thin versions.
Common specifications include 4mm, 6mm, 8mm and 10mm. Always confirm whether the supplied sheets reach full nominal thickness; reject undersized products. - Select polycarbonate sheets reaching standard weight.
Sheets of identical thickness may differ in weight. Standard areal weights are listed below. Confirm weight guarantee with suppliers before purchase; reject items failing to meet the standard weight.
- 4mm polycarbonate sheet: 1.0KG per square meter
- 6mm polycarbonate sheet: 1.2KG per square meter
- 8mm polycarbonate sheet: 1.4KG per square meter
- 10mm polycarbonate sheet: 1.6KG per square meter
- Purchase polycarbonate sheets made of virgin raw materials.
Raw material directly determines service life and quality. Virgin-material sheets are transparent and clean. Sheets mixed with recycled materials contain impurities. Placed on white paper, virgin sheets look bright white, while recycled-material sheets show obvious yellowing. - Choose polycarbonate sheets equipped with UV coating.
Without UV coating, polycarbonate sheets will severely age within 5 years, similar to yellowed automobile headlamps. Aozi polycarbonate sheets adopt 50-micron UV coating and come with a 10-year anti-aging warranty. UV coating can be inspected by UV lamps. Request stamped certification from suppliers.
The above five criteria are essential for quality identification. Aozi solemnly promises only virgin raw materials for polycarbonate sheets. Do not be tempted by low prices; poor-quality products bring zero value. Premium durable sheets deliver better long-term cost efficiency.
