Frequently Asked Questions
Everything you need to know about SUNLU products and services.
What is the standard shipping time for SUNLU orders?
Most orders are processed within 1-2 business days. Shipping typically takes 3-7 business days depending on your location and the proximity to our regional warehouses.
How should I store my SUNLU 3D printing filament?
To maintain optimal quality, we recommend storing filament in a cool, dry place using a vacuum bag or a specialized filament dryer box like the SUNLU S1 or S2 to prevent moisture absorption.
What is your return policy for defective products?
We offer a 30-day money-back guarantee. If you receive a defective item or are unsatisfied with your purchase, please contact our support team to initiate a return or replacement.
Which payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and various local payment options depending on your shipping region.
Are SUNLU filaments compatible with all 3D printers?
Yes, our filaments are designed with a standard diameter tolerance of +/- 0.02mm, making them compatible with almost all FDM 3D printers on the market that use 1.75mm or 2.85mm materials.
Do you offer bulk discounts for commercial or educational use?
Yes, we provide wholesale pricing and bulk discounts for businesses, schools, and large-scale makers. Please reach out via our 'Bulk Order' contact form for a custom quote.