LEYI is a manufacturer, not a trading company. We run our own R&D, production and sales of UV-curable 3D printing resins, with more than a decade of experience in the field.

Our factory is located in Hangzhou, Zhejiang Province, China - the same city as Alibaba's headquarters, and one of China's established technology manufacturing hubs.

LEYI is an integrated manufacturing enterprise covering independent R&D, production and sales, and one of China's leading producers of 3D printing resins. Over more than a decade we have grown from a startup into a national-level high-tech enterprise in UV-curable 3D printing resin materials, with a professor-led R&D team, large-scale standard production lines, mature production processes and a fully controllable supply chain. We also offer OEM/ODM cooperation and customized formulations for global customers.

Yes. We hold ISO 9001 Quality Management System certification and a China Medical Device Production License, among other qualifications.

We follow a standardized testing process. Every batch is checked for quality and stability before delivery.

Our products have obtained China NMPA (formerly CFDA) certification and biocompatibility reports. Some products additionally hold CE Class I certification, and further FDA and CE certifications are currently in progress.

Dental model resin, surgical guide resin and gingiva resin are CE certified. The remaining materials are currently in the review process.

Our MOQ is generally 1 kg per item. For higher-priced materials we can supply 0.5 kg per bottle.

Yes. We can provide a free 250 g sample - you only pay the express delivery cost. For a more complete printing test we recommend a 1 kg bottle, as the shipping cost is similar and it allows full validation on your own printer.

Almost all of the products we sell are held in stock. Tell us the quantity you need and we will confirm availability and lead time.

Our most requested materials include orthodontic dental membrane resin, implant dental model resin, flexible denture base resin, temporary crown and bridge resin, and bioceramic permanent crown resin.

Yes. Request our full product catalog by WhatsApp or email and we will send it to you directly.

Send us an inquiry on WhatsApp or by email with the materials and quantities you need. To prepare your proforma invoice, please include: country, recipient name, receiving company (if applicable), phone, full address, city, province or state, ZIP code and email.

Yes, L/C and D/P are acceptable. For standard orders, full payment in advance is required.

We are not able to accept COD at this time - full payment in advance is required. Any delivery or quality issue will be handled promptly by our team.

If the goods have not yet been shipped, or are still within China, we can cancel the order and issue a full refund. Once the shipment has been picked up by the carrier, the shipping cost will be deducted from the refund.

Unopened and stored at room temperature, our resins have a shelf life of over 2 years. After opening, close the bottle cap tightly. Resin should be kept away from high humidity and direct sunlight, including while loaded in the printer.

Yes. Our resins are compatible with most LCD and DLP printers from different brands. Where exposure time and bottom exposure time are adjustable, you will achieve the best accuracy and surface quality. We also provide online technical support for parameter tuning.

We take part in dental exhibitions in China and around the world throughout the year. Contact us and we will let you know in advance where you can meet our team.