We specialize in custom-molded rubber seals with complex undercuts and challenging geometries that standard tooling cannot achieve. Using advanced mold design and precision machining, we deliver undercut parts that maintain tight tolerances and provide reliable sealing even in demanding applications.

Our undercut molded seals are ideal for aerospace, defense, oil & gas, and industrial assemblies where retention features, hidden cavities, or intricate shut-offs are required. Whether you need small prototype runs or full-scale production, our solutions ensure consistent quality and performance.

These seals can be produced in a wide range of elastomers—including silicone, fluorosilicone, FKM/Viton, and EPDM—and can incorporate bonded inserts or overmolding for added functionality. By combining material expertise with advanced molding techniques, R&R ensures your undercut parts hold up under pressure, vibration, and environmental stress.