APET vs PETG vs GAG Sheets: Which Printing Substrate?

Frequently Asked Questions

Q: How do I choose the right solution for my project?
Start by defining your budget, installation environment (indoor vs outdoor), and how long you expect the display to last. If you are unsure, send us your drawings and dimensions, and our engineers will recommend the best option within 24 hours.

Q: What is the minimum order quantity?
Standard items have no MOQ. Custom colors, custom sizes, and private label packaging usually require 500–1000 pieces depending on the product. Sample orders are always welcome before bulk production.

Q: How long is the lead time?
Standard stock items ship within 3–5 working days. Custom production takes 15–25 days depending on quantity and tooling. We can also rush orders for urgent trade shows if needed.

Q: Do you ship worldwide?
Yes. We export to 40+ countries including the USA, Germany, UK, Australia, and the Middle East. We can ship by sea (FCL/LCL), air, or express courier. We handle export documentation, customs declaration, and commercial invoice preparation.

Practical Tips Before You Order

Before placing an order, always confirm three things: first, double-check your exact dimensions and corner angles against your space. Second, ask for a physical sample before mass production—what looks good on screen may feel different in person. Third, plan for spare parts (LED strips, drivers, edge strips) at the same time as your main order, because reordering small spare parts later usually costs more than the parts themselves.

For long-term projects, we recommend keeping a detailed spec sheet for every installation: what size frame, what color strip, what LED color temperature, and which driver version. This makes future replacements and maintenance much faster. EEYUN has been manufacturing SEG lightboxes, aluminum profiles, and LED strips in Hangzhou, China since 2010, and we support OEM/ODM for distributors and brand owners worldwide.

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What They Are

All three are PET-based transparent plastic sheets used for lightbox face panels and UV/screen printing. APET is amorphous, PETG is glycol-modified, and GAG is a co-extruded sandwich of two APET skins on a PETG core.

APET (Standard)

APET is the cheapest and clearest. It prints well with UV ink but is brittle and cracks when bent. Best for flat lightbox panels where no forming is needed.

PETG (Printing-Friendly)

PETG is more impact-resistant and easier to thermoform. It has a slightly hazier appearance than APET but handles screen printing and die cutting better. Use for curved panels or display stands.

GAG (Premium)

GAG combines the best of both: APET clarity on the printing surface plus PETG toughness on the back. It is the premium choice for high-end retail lightboxes that need both crystal-clear print and impact resistance.

Cost and Recommendation

APET is the budget default, GAG costs about 30% more. For most SEG lightboxes, APET 0.5mm or 0.8mm is sufficient. EEYUN supplies all three in 0.3–1.5mm thickness.