Keystone Industries is a privately held group of dental, cosmetic and medical device manufacturing and distribution subsidiaries. Keystone Research & Pharmaceutical (KRP) is the manufacturing division responsible for production of our cosmetic, dental, and specialty polymer products. The dental side of the company carries products for both laboratories and operatory needs. From vacuum forming products to denture acrylics, Keystone's wide range of products have been critically acclaimed while remaining an affordable solution to dental professionals.