Frequently Asked Questions

Everything you need to know about SUNLU 3D printing solutions and support.

What is the typical shipping time for SUNLU products?

Orders are typically processed within 1-2 business days. Domestic shipping usually takes 3-7 business days, while international delivery can range from 7-15 business days depending on the region and local customs.

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 with desiccant or a dedicated filament dryer box like the SUNLU FilaDryer to ensure optimal printing quality and prevent brittleness.

What is your return policy for defective items?

We offer a 30-day return policy. If you receive a defective product or are unsatisfied with your purchase, please contact our support team with your order number and photos of the issue to initiate a replacement or refund.

Are SUNLU filaments compatible with all FDM 3D printers?

Yes, our filaments are designed with a standard diameter tolerance of +/- 0.02mm, making them highly compatible with nearly all FDM 3D printers on the market that use 1.75mm or 2.85mm materials.

What payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express), PayPal, and various localized payment options to ensure a secure and convenient checkout process.

How can I track my order once it has been shipped?

Once your order leaves our warehouse, you will receive an automated email containing your tracking number and a link to the carrier's website where you can monitor the real-time status of your delivery.