Frequently Asked Questions
Everything you need to know about SUNLU 3D printing products and services.
How long does shipping take for my 3D printing supplies?
Standard shipping typically takes 3-7 business days depending on your location. We utilize local warehouses to ensure the fastest possible delivery for our filaments and resins.
What is SUNLU's return policy for defective products?
We offer a 30-day money-back guarantee. If you receive a defective spool or a malfunctioning 3D pen, please contact our support team with your order number and photos of the issue for a full refund or replacement.
Are SUNLU filaments compatible with all FDM printers?
Yes, our PLA, PETG, and ABS filaments are designed with a standard diameter tolerance of +/- 0.02mm, making them highly compatible with almost all FDM 3D printers on the market.
What 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 process.
How should I store my filament to prevent moisture absorption?
We recommend storing your filament in a cool, dry place using a vacuum-sealed bag or a dedicated filament dryer box like the SUNLU FilaDryer S2 to maintain optimal print quality.
Do you provide bulk discounts for educational institutions?
Yes, we offer special bulk pricing for schools, universities, and businesses. Please reach out to our sales department via the contact form for a personalized quote.