Frequently Asked Questions
Everything you need to know about SUNLU 3D printing supplies and support.
What is the recommended storage for SUNLU filament?
To maintain optimal quality, store your filament in a cool, dry place using a vacuum-sealed bag or a filament dryer box to prevent moisture absorption.
How long does shipping take for my order?
Standard shipping typically takes 3-7 business days depending on your location. You will receive a tracking number via email once your order has been dispatched from our warehouse.
What is your return policy for defective products?
We offer a 30-day return policy for any items that arrive damaged or defective. Please contact our support team with your order number and photos of the issue for a replacement or refund.
Are SUNLU filaments compatible with all FDM printers?
Yes, our filaments are designed with a standard diameter tolerance of +/- 0.02mm, making them compatible with nearly all FDM 3D printers on the market that use 1.75mm or 2.85mm materials.
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 offer bulk discounts for commercial use?
Yes, we provide wholesale pricing for bulk orders. Please reach out to our sales department via the contact form for a custom quote based on your volume requirements.