DuPont DELRIN SC698 resin for medical devices

DuPont’s DELRIN acetal resin features the lowest coefficient of friction (COF) in the company’s portfolio of materials for medical devices. The DELRIN SC698 resin with integrated lubrication can help improve patient comfort and ease of use by ensuring smooth actuation of high-load drug delivery devices like inhalers, injectors and pumps. Its strength, stiffness and dimensional stability can also help increase the injection precision of wearables and inserter devices.

Patient compliance and good outcomes depend on using a drug delivery device as prescribed, and on achieving dose-to-dose accuracy and consistency. The resin can help meet both requirements, with a combination of low COF and useful mechanical properties that help facilitate device actuation and ensure consistent, precise drug delivery. Its ultralow friction, high strength and stability should thus help reduce effort and improve consistency when patients self-administer their medications. The resin can be custom-coloured to make devices more visually appealing to patients and to emphasise features and functionality.

The resin is a highly crystalline homopolymer offering strength, stiffness and fatigue resistance. Together with ultralow friction, these properties deliver good wear performance over time and repeated use to promote an extended useful life. In addition, the material’s high impact resistance helps protect against damage from drops.

The strength, rigidity and dimensional stability of the resin allow designers to create thin-wall, complex and miniaturised designs without sacrificing performance. Other benefits for healthcare manufacturers include integrated lubrication, which avoids the need for secondary operations to add lubricity, and system cost reduction opportunities through high-volume injection moulding.

DuPont SC resin grades undergo an extensive amount of testing and offer a high degree of manufacturing control and broad regulatory compliance.