BioMed White Resin is a rigid material for biocompatible applications requiring long-term skin contact or short-term mucosal membrane contact. Unique in our portfolio, this medical-grade material is also USP <151> Pyrogen and Acute Systemic toxicity tested and can be used in applications with short-term tissue, bone, and dentin contact. Non-Latex Shelf Life : 730 days Country of Origin : USA