Frequently Asked Questions

Everything you need to know about SUNLU 3D printing products and services.

How should I store my SUNLU filament to prevent moisture absorption?

We recommend storing your filament in a cool, dry place using a vacuum-sealed bag or a specialized filament dryer box like the SUNLU FilaDryer to maintain optimal print quality.

What is the standard shipping time for international orders?

International orders typically arrive within 7-15 business days. Please note that shipping times may vary depending on local customs processing and your specific region.

What is your return policy for defective items?

We offer a 30-day return policy for any products that arrive defective or damaged. Please contact our support team with your order number and photo evidence to initiate a replacement or refund.

Are SUNLU 3D printing filaments compatible with all FDM printers?

Yes, our filaments are designed with a standard 1.75mm diameter and high tolerance levels, making them compatible with 99% of FDM 3D printers on the market.

Which payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and Apple Pay for a secure and seamless checkout experience.

Do you provide bulk discounts for commercial or educational use?

Yes, we offer tiered pricing and bulk discounts for businesses, schools, and makerspaces. Please reach out to our sales department for a customized quote.