Apple Rubber is a leading designer and manufacturer of O-rings, rubber seals, and custom sealing devices. Whether you need a ... standard AS-568C rubber O-ring, a complex Liquid Silicone Rubber (LSR) prototype seal or medical-grade seals and parts, we have the sealing capabilities to deliver the sealing solution you need. Our ISO-9001:2008 and ISO-9100B certified manufacturing facilities feature transfer, compression and liquid injection molding, and an ISO Class 7 (10,000) certified cleanroom. To Seal it Right, get your O-rings and seals Right from Apple. read more