Frequently Asked Questions

Everything you need to know about SUNLU products and services.

What types of 3D printing filaments does SUNLU offer?

SUNLU provides a wide range of high-quality filaments including PLA, PLA Plus, ABS, PETG, TPU, and specialty series like Silk and Wood-filled filaments, all designed for precision and reliability.

How should I store my filament to prevent moisture absorption?

We recommend using a SUNLU Filament Dryer Box or keeping your spools in vacuum-sealed bags with desiccant packs to ensure optimal print quality and prevent brittle filament.

How long does shipping take for international orders?

Standard international shipping typically takes 7-15 business days. We utilize local warehouses in the US, EU, and UK to provide faster 3-5 day delivery for eligible regions.

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.

Are SUNLU 3D pens compatible with all filament brands?

While SUNLU 3D pens are optimized for SUNLU filaments, they are compatible with most standard 1.75mm PLA and PCL filaments available on the market.

Which payment methods do you accept?

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