Since the early 1970s, Clark Rubber & Plastic has manufactured custom rubber and plastic components in Mentor, pairing in-house tooling with dedicated molding and extrusion operations. Its 70,000 square feet of manufacturing space includes a 40,000-square-foot plastic facility with six extrusion lines, supporting work from prototypes through high-volume production. The company operates an IATF 16949:2016-certified quality system and also holds UL certification for plastic components.
IATF 16949:2016 First Edition
UL Certification of Compliance QMFZ2.E356537 Plastics – Component
Six Sigma Certification
Compliance program
UL
Quality certification
Universal Polymer & Rubber Ltd., IncSince 1971, Universal Polymer & Rubber has manufactured custom rubber components in Ohio for demanding applications, from critical industrial seals to heavy-duty Gold Line Tarp Straps®. Its two domestic facilities encompass 200,000 square feet and have produced more than 119 million parts, supporting programs from automotive and military supply chains to water systems and food-service equipment. The company holds ISO and IATF certifications at both its Middlefield and Tallmadge operations.MIDDLEFIELD, OH
Royal Plastics, IncFounded in 1966, Royal Plastics is a Mentor, Ohio custom manufacturer of injection-molded plastic parts and contract-manufactured components for domestic and international customers. The closely held S-corporation has expanded from its Ohio operation into a U.S.-China manufacturing partnership, with in-house toolmaking, molding, assembly and testing supporting projects from prototype quantities through high-volume production. Royal Plastics employs 250 people domestically and 800 internationally, and operates under ISO 9001:2015 quality registration.MENTOR, OH
Lake Erie Rubber & ManufacturingSince 1961, Lake Erie Rubber & Manufacturing has molded custom rubber components in Erie, Pennsylvania, supporting demanding OEM applications with in-house engineering and U.S.-based production. The multi-generational company was family-owned for its first two generations and remains in Erie under its current owner, pairing more than six decades of experience with ISO 9001-certified quality systems and presses up to 800 tons. Its work ranges from industrial components to durable rubber pet toys, with design, tooling, and material guidance available from concept through production.ERIE, PA
Montville Plastics & RubberFounded in 1977, Montville Plastics & Rubber is a privately owned American manufacturer known for taking on complex custom plastics work. Based in rural Ohio, the company has grown from one machine in a garage to a 100,000-square-foot operation, with in-house tooling and product development for customers who need parts brought from concept into production.PARKMAN, OH