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 S2 to maintain optimal printing quality.
What is the average shipping time for international orders?
Standard international shipping typically takes 7-15 business days. Please note that processing times may vary depending on local warehouse availability in your region.
Can I return a product if I am not satisfied with the results?
Yes, we offer a 30-day return policy for unused and unopened items. If you encounter technical issues with a machine, please contact our support team for troubleshooting before initiating a return.
Are SUNLU filaments compatible with all FDM 3D printers?
Our filaments are designed to be compatible with 99% of FDM 3D printers on the market. Always ensure your printer's nozzle temperature settings match the recommended range listed on the product spool.
Which payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and Apple Pay to ensure a secure and convenient checkout experience.
Do you provide bulk discounts for commercial or educational use?
Yes, we offer tiered pricing for bulk purchases. Please reach out to our sales team via the 'Wholesale' contact form for a personalized quote.