Is PETG suitable for outdoor use?

Standard PETG is best suited to indoor applications, as it can become discoloured or brittle with prolonged UV exposure. However, UV-stabilised PETG grades are available for outdoor projects. These resist yellowing and degradation, making them ideal for external signage, displays, and protective panels.

If you require UV-resistant materials which can be used outdoors for long periods the most suitable material is Perspex® Acrylic Sheet. For a more detailed explanation on the UV-resistance of Perspex® Acrylic Sheets, see our blog post: The Truth About Perspex® UV Resistance – and Why It’s Important.