E-Jay Plastics is a custom thermoset molding manufacturer specializing in injection, compression, transfer, and insert molding of all thermoset materials. With decades of experience and deep technical expertise, we proudly take on the complex, high-precision parts others shy away from—across a wide range of sizes and production volumes.

Known for our creativity, reliability, and highly personalized customer service, we’ve built long-standing partnerships with aerospace, industrial, and automotive customers—many of whom have trusted us for over 40 years. Whether you're looking for a flexible low-volume partner or a scalable solution for challenging thermoset applications, E-Jay Plastics brings the problem-solving mindset and technical capabilities to deliver.

Proudly Made in the USA since 1959.

E-Jay Plastics Co.

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E-Jay Plastics Co.

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