Apple Rubber Products Inc. is a leading designer and manufacturer of O-rings, rubber seals, and custom sealing devices. Whether you need a standard AS-568A/AS-568B rubber O-ring, a complex Liquid Silicone Rubber (LSR) pro......Apple Rubber Products Inc. is a leading designer and manufacturer of O-rings, rubber seals, and custom sealing devices. Whether you need a standard AS-568A/AS-568B 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-9001:2000 certified manufacturing facilities feature transfer, compression and liquid injection molding, and a Class 10,000, ISO Class 7, certified cleanroom. To Seal it Right, get your O-rings and seals Right from Apple.