Explore the comprehensive 2026 guide to custom molded rubber products. Learn about material selection, design precision, and why Puja Seals is a leading manufacturer. Custom rubber molding is the art of taking raw elastomeric material and shaping it into a desired functional form through the use of heat and pressure. As opposed to standard seals, custom rubber products are designed to satisfy precise dimensional specifications and resist precise environmental conditions. The basic components of this industry sector are: